JP6671692B2 - Automatic rainwater irrigation system - Google Patents

Description

Radiation transmission-reducing constituent materials can be used on land, gardens, school yards, stadium grounds or lawns, on farm lands, concrete, asphalt, road slopes, building walls, roofs where radiation is relatively concentrated. Above, around and around the waste collected in the decontamination work, installed as a self-supporting wall structure, installed and constructed on the ground or lawn of gardens, school yards, stadiums, on farmland, forests, building walls, roofs Installed on the upper surface to make green space, border area of adjacent land facing relatively high concentration of radiation or building, plant on standing and surrounding waste accumulated in decontamination work The present invention relates to a radiation-protecting green base and a green-greening structure using the same, which is suitable for cultivating rainwater infiltration inside a gutter and installing in a gutter.

Nuclear power plants and their surrounding areas, or radioactive material handling business facilities and their surrounding areas, are contaminated with radioactive materials scattered in the natural environment due to accidents at nuclear power plants and accidents at facilities handling radioactive materials. In addition, radioactive materials are decontaminated in the event of an accident.However, in the case of ground, soil, turf, etc. contaminated with radioactive materials, the surface shall be separated by concrete, asphalt, and law. At a contaminated site such as a surface or a roof, decontamination is performed by a method such as peeling or high-pressure cleaning. However, there are concerns about re-dispersion of radioactive materials and sedimentation and contamination of the water flow destination due to movement and cleaning leading to storage of the decontaminated material. Also, radiation from radioactive materials remains in the place after decontamination. Even if the decontaminated material is buried underground, radiation remains on the ground surface. In addition, it is difficult to secure land for storing decontaminated materials. In addition, a high concentration of radiation is radiated due to the concentration of a large amount of decontaminated material. If radiation remains on the land or building adjacent to the decontaminated land, the radioactive material that has adhered to or permeated the neighboring land or building will be scattered by the wind, or rainwater will adhere to or permeate the building surface, causing the radioactive material to flow. There are many places where high concentrations of radiation are radiated and concentrated in the drainage facilities at the water flow destination, on the ground, or in the ground.

In addition, radioactive materials adhering to the ground due to strong winds or driving a vehicle float in the surrounding area and adhere to the ground or buildings again. There is a challenge for radiation.

Not all of the harms of humans, animals and other ecology to radiation from the presence of these radioactive materials have been elucidated. In addition, it is more dangerous to ingest radioactive material floating from a location contaminated with radioactive material, but it is not easy to remove the radioactive material from the contaminated living environment.
At present, as a solution to such a problem, a plurality of iron plates, sheets or mats in which powders or grains of heavy metals are integrated with rubber or resin as an additive to obtain a radiation shielding effect are laminated (for example, see Patent Reference 4). In addition, a method has been selected in which heavy objects such as heavy metal plates, heavy concrete plates and concrete blocks, and a large amount of soil not contaminated with radioactive materials are installed and created by heavy equipment on a place where radiation is radiated. It is also known to reduce radiation by installing heavy structures as walls around the place where the radiation is emitted.

On the other hand, there is already a greening technique for containing 90% of the soil by volume (for example, see Patent Documents 1, 2, and 3). This patent document technology verifies the amount of evapotranspiration comparable to a forest and provides a heat island mitigation effect (verifies that the outside air temperature of a 50 cm rooftop turf in midsummer decreases by 1 ° C.). In addition, the storage effect of heavy rainfall that frequently occurs due to the water holding capacity of green spaces is remarkable. Furthermore, a lawn in which water does not seep onto the lawn surface in a state where the soil of the lawn is saturated with water is suitable for a stadium. Furthermore, woody plants, herbs, and crops can all be produced by forced cultivation. For example, a tree with a weeping weeping cherry tree is planted on a ship and grows with stable growth. Also, for example, spinach grown without pesticides has grown to a height of 150 cm. As described above, it is clear that the above patent document technology is a special technology. In this greening technology, the water consumption of the plant is at least low by combining the soil structure with the aeration environment, carbon environment, trace element fertilizer environment, and drainage environment that are suitable for growing the root of the plant. Absent. The water content of the soil is also affected by the evapotranspiration of the leaves, and the amount of water loss in the soil appears remarkably in summer. Considering the radiation transmission reduction effect, due to the water content of the green space technology, for example, when the soil thickness is 12 cm, the soil and the culvert base material and the activated carbon adhered water-permeable sheet, the mass and water retention of turf grass sod The turfgrass green space structure can be designed with a combined weight of the water content of the soil of 167 kg / m ² (100 L water content). It is considered by those skilled in the art that the radiation transmittance estimated from this weight is reduced by about 75%. However, for example, water consumption of grass hot day at least m ² about 5～7L / day is consumed by evapotranspiration, i.e. the amount of water moisture content saturation excellent potting the water retention of the above, 14 Turfgrass consumes soil water content in days to 20 days. Rain during this water consumption causes water to increase in the soil, but in the absence of precipitation, the water content of the soil decreases daily, ie, plants The water consumption of the soil reduces the load on the soil and the transmittance of radiation increases. Become. In addition, it is possible to introduce and create a general soil other than the water-retaining soil described in the patent document to increase the thickness of the soil and increase its weight. Even in the above, it is not practical to transport a large amount of soil material that is not contaminated by radioactive materials, because it must be transported from a remote site without contamination. In addition, transportation costs are high and introduction is difficult. In addition, since the water content and the soil load increase by using a large amount of the water-retaining soil described in the patent document, the radiation transmittance can be sufficiently reduced by reflecting the total load of the soil structure. However, in order to maintain the radiation transmission reduction rate as close to 100% as possible, maintaining a constant soil weight and soil water content is indispensable for maintaining radiation transmission reduction. is there. As explained above, the factors that increase or decrease the weight of greening soil are affected by the amount of water consumed by the plants and the weather conditions on the top surface of the soil. It is to be lost. In addition, in order to obtain the radiation transmission reduction effect that should correspond to radiation radiation of cesium whose physical half-life is as long as 30 years, it is necessary to reduce the radiation transmission that must deal with the radiation emitted by cesium over at least the half-life period. Effective soil water content and a substrate and soil structure with physical functions to prevent the scattering and flow movement of radioactive materials are required,
However, it is difficult for those skilled in the art to create an inexpensive soil with a high water content required for reduction of radiation transmission and a soil in which a certain amount of water required for stable growth of plants is permanently maintained. Was. In addition, it was difficult for those skilled in the art to create a structure including a liquid phase portion and a gas phase portion that maintain a static state without being affected by an external force. Furthermore, it is not easy to expect that an excellent reduction effect on the fixation and shielding of radioactive material, which is the domain of physics, is not easy, and also, because the field of plant growth and the field related to radioactive material are different, The creation of such a new soil was not easily conceivable.

Japanese Patent No. 4980560 Japanese Patent No. 4907854 Japanese Patent No. 4907855 JP 2013-79845 A

The present invention integrates in decontamination work on land, gardens, school yards, stadium grounds or lawns, agricultural lands, concrete, asphalt, building walls, slopes, roofs, where radiation is relatively concentrated On or around the waste, or as a self-supporting wall structure, or on the ground or lawn of a garden, school yard, stadium, on farmland, or on the top of a forest, building wall, ceiling, or roof. Cultivate plants by greening the ground or setting up walls on and around the borders of adjacent land facing land and buildings with relatively high concentration of radiation, and the waste collected in the decontamination work. It is an object of the present invention to provide a radiation-protecting green space and a radioactive-greening-use greening structure using the same, which is capable of reducing radiation transmission and being suitable for installation in a gutter inside rainwater infiltration. .

According to the first invention, after radioactive materials are diffused from a nuclear power plant or a business that handles radioactive materials, contamination caused by the diffused radioactive materials is remarkably spread in a wide area inside the business site or outdoors. It is provided at the place where it appears and its vicinity,
Including a plurality of ribs, at least one face sheet and a back sheet laminated via the plurality of ribs, a region excluding the plurality of ribs, sandwiched between the face sheet and the back sheet; In the hollow area of the hollow ribs, the water-containing space or the hollow plate-shaped body forming the water-containing space and the gas phase portion, and the water-retaining base material filled in the water-containing space, or in the water-containing space It is a radiation transmission reduction constituent substrate comprising a filled water retention substrate and a gas phase part.

In the radiation transmission reducing constituent substrate of the second invention, the water-containing space or a peripheral edge of a gas phase portion is closed or partially closed, and the surface thin plate includes the water-containing material. The radiation transmission reduction constituent substrate according to the first invention, which may include a form in which one or more through holes communicating with the entire space are formed.

The radiation transmission reducing component base material of the third invention is a hollow plate-like body formed by laminating a back thin plate and a front thin plate having a large number of through holes through a large number of ribs. The rib includes a plurality of plate-like ribs arranged substantially parallel to each other, at least one end of the water-containing space located at a longitudinal end of the plurality of plate-like ribs is closed, and the plurality of plate-like ribs are closed. The through-hole is a radiation transmission reducing component base material according to the second invention, wherein the through-hole includes a band-shaped through-hole formed so as to cross the plurality of plate-shaped ribs.

According to a fourth aspect of the present invention, the plurality of ribs include four or more plate-like ribs arranged so as to be alternately inclined in opposite directions. At least one end of the water-containing space located at a longitudinal end is closed, and the plurality of through-holes include a band-shaped through-hole formed so as to intersect the plurality of plate-like ribs. It is a radiation transmission reduction constituent base material of the second invention.

In the radiation transmission reducing constituent base material according to a fifth aspect of the present invention, the plurality of ribs include hollow ribs, and the water-containing space also includes an inner space of the plurality of through holes. The radiation transmission reducing constituent substrate according to any one of the inventions.

A radiation transmission reducing component base material according to a sixth aspect of the present invention is the radiation transmission reducing component substrate according to the fifth aspect of the present invention, wherein the hollow rib is provided with a hole communicating the inside and the outside of the rib.

According to a seventh aspect of the present invention, in the base material for reducing radiation transmission, the one or more through-holes formed in the surface thin plate partially include one or more planting holes having a diameter of 30 mm to 180 mm. The radiation transmission reducing constituent substrate according to any one of the inventions.

According to an eighth aspect of the present invention, there is provided a radiation transmission reducing component base material comprising: a plurality of water shields having a main surface; a fixing member for fixing the plurality of water shields such that their main surfaces face each other; A radiation transmission reducing constituent base material characterized in that a water retention base material sandwiched between water bodies and a water pipe or a hollow plate may be provided in a part of the water retention base material.

The radiation transmission reducing component base material of the ninth invention is a plate body formed of a thermoplastic resin, or a back thin plate and a front thin plate are laminated via a plurality of plate-like body ribs, and the plate-like body is formed. A hollow plate body that is installed substantially in parallel and has a drainage channel, or a hollow body in which a back thin plate and a front thin plate having a plurality of through holes are laminated through a plurality of ribs. The rib is a plate-like body, a plurality of plate-like bodies are installed substantially in parallel, a drainage channel is formed, the through-hole is a band-like through-hole, and the plurality of band-like through-holes are the plate-like body. A radiation transmission-reducing constituent base material characterized by having a culvert plate structure that is bored across a shape.

The radiation transmission reducing constituent base material of the tenth invention, the back thin plate and the surface thin plate in which a plurality of through holes are perforated, a large number of cylinders, cylinders, prisms, truncated cones, truncated pyramids, It is formed of a hollow plate-like body laminated via any one of the annular belt-like ribs, and a drainage channel is formed between the front thin plate, the back thin plate, and any one of the ribs. Radiation transmission reduction base material.

In the radiation transmission reducing constituent substrate according to the eleventh aspect of the present invention, the front thin plate and the back thin plate having a large number of through holes formed at least in the surface thin plate are laminated via a plurality of ribs having the through holes formed therein. The radiation transmission reducing base material according to the ninth or tenth aspect of the present invention, which is a hollow plate-shaped body.

The radiation transmission reducing constituent substrate according to a twelfth aspect, wherein the through hole is formed of a hollow plate-like body that is a band-like through hole, and the rib includes a honeycomb shape or a lattice shape. It is a radiation transmission reduction constituent substrate of the eleventh invention.

The radiation transmission reducing constituent substrate of the thirteenth invention is a nonwoven fabric, a carbon fiber woven fabric, a glass fiber woven fabric, a rubber sheet obtained by mixing an additive with rubber, a resin sheet obtained by mixing an additive with a resin, a resin plate, Including any one of a metal plate, a concrete plate, and a plate body obtained by bonding a heat insulating material and an aluminum plate, further comprising a bonded body bonded to an outer surface of any of the front thin plate and the back thin plate. The radiation transmission reducing constituent substrate according to any one of the first to twelfth aspects of the present invention,

The radiation transmission reducing component base material according to the fourteenth invention is such that both ends or peripheral edges of the drainage channel are closed or partially closed, and the drainage channel is made capable of storing water. The radiation transmission reducing constituent base material according to the ninth to thirteenth inventions, characterized in that the base material can be drained from a part or a through hole of the base member through the end rib.

The radiation transmission reducing component base material according to the fifteenth invention is the radiation transmission reducing component material according to any one of the ninth to fourteenth inventions, which is provided on a surface plate or a water shield of the radiation transmission reducing component substrate according to any one of the first to eighth inventions. A radiation-transmitting low-constituting base material, wherein a reducing constituent base material is laminated.

According to a sixteenth aspect of the present invention, at least one of the plurality of ribs, the front thin plate, and the back thin plate is fitted with the same other radiation transmission reducing component base material. It is the radiation transmission reduction component base material according to any one of the first to fifteenth inventions, including a fitting portion that enables connection with another radiation transmission reduction configuration substrate material.

The radiation transmission reducing constituent base material of the seventeenth invention is a joint having a cross-sectional shape of 1 or a right-angled hollow L-shaped joint composed of a vertical wall with a through hole or a vertical wall without a through hole. A radiation transmission reducing component base material characterized in that the radiation transmission reducing component substrate according to any one of the first to fifteenth inventions is connected to form a large plate.

The radiation transmission reducing component base material according to an eighteenth aspect of the present invention is the radiation transmission reducing component base material according to any one of the first to seventeenth aspects, wherein the radiation transmission reducing component base material has a thin plate, a corrugated plate shape, an uneven shape, a box shape, a rectangular solid, a cube, Alternatively, it is a radiation transmission reducing base material in which a culvert or a molded body having a gutter shape and a through-hole formed in a thickness direction is laminated.

The radiation transmission-reducing constituent substrate of the nineteenth invention is characterized in that a nonwoven fabric and / or ultrafine-grained activated carbon adhere or adhere to the surface thin plate side or the back thin plate side of the radiation transmission-reducing constituent substrate of any of the first to eighteenth inventions. A radiation transmission-reducing constituent base material characterized in that an impregnated nonwoven fabric is laminated or bonded.

The radiation transmission reducing component base material of the twentieth invention is such that a net-like body is laminated on any of the front thin plate side, the back thin plate side, and the front and back thin plate side of the radiation transmission reducing component base material of any one of the first to nineteenth aspects. It is a radiation transmission reducing constituent base material.

The radiation transmission reducing component base material according to the twenty-first invention is characterized in that the radiation transmission reducing component base material according to any one of the first to twentieth aspects has a thin plate side, a back thin plate side, or a front and back thin plate side, A radiation transmission reducing structure characterized in that a plurality of nonwoven fabrics are joined in a lattice shape, and a radioactive substance adsorption sheet in which zeolite or a mixture of zeolite and activated carbon is sealed between the upper and lower nonwoven fabrics of the generated lattice is laminated. Base material.

The radiation transmission reducing component base material of the twenty-second invention is the radiation transmission reducing component base material of the twenty-first invention in which at least one nonwoven fabric is attached or impregnated with ultrafine activated carbon.

The radiation transmission reducing component base material according to the twenty-third aspect is characterized in that rock wool fiber or a molded product thereof is laminated on the surface thin plate side of the radiation transmission reducing component base material according to any one of the first to twenty-second aspects. Radiation transmission reducing component base material.

In the base material for reducing radiation transmission according to the twenty-fourth aspect, the molded product of the rock wool fiber according to the twenty-third aspect is a nonwoven fabric, a felt-like body, a plate-like body, a square rod, a granular material, or a cotton-like material. Furthermore, a form in which a tortoise-mesh mesh is bonded to the surface of the rock wool fiber molded body, a form in which the surface of the molded body is covered with glass cloth, and an aluminum foil and a glass fiber sheet are bonded to the surface of the molded body Rock wool fiber in the form of bonded aluminum cloth is included,
Either of the above-mentioned molded bodies, the peripheral portion of the radioactive substance adsorption sheet of the twenty-first or twenty-second invention, inside the bag formed in a bag that is closed or closed leaving a partial opening, A radiation transmission-reducing constituent base material characterized by being in a form filled as a water retention base material or a void holding base material.

In the radiation transmission reducing constituent substrate according to the twenty-fifth aspect, at least one of a water-impervious sheet, a moisture-proof film, and a two-layer sheet obtained by laminating the moisture-proof film and the water-proof sheet is closed or partially closed. The rock wool molded article of the twenty-fourth invention or the 71, 72 or 74 in the form of a bag closed with an opening or a bag having a plurality of holes formed in the waterproof sheet and the moisture-proof film. A radiation transmission reducing constituent substrate having a form filled with the water retention substrate according to any one of the inventions.

According to a twenty-fourth aspect of the present invention, there is provided the radiation transmission reducing component base according to the twenty-fifth aspect, wherein the radiation transmission reducing component base member is provided on an upper surface of a portion contaminated with a radioactive substance. A radiation transmission reducing component according to any one of the first to 22th aspects, wherein the radiation transmission reducing component according to any one of the first to 22nd aspects is laminated on the upper surface of the component substrate.

The radiation transmission reducing component base material according to the twenty-seventh aspect is the radiation transmission reducing component base material according to the twenty-third or twenty-fourth aspect, wherein a concave portion or a through hole is formed in a molded product of rock wool fiber.

A radiation transmission reducing component base material according to a twenty-eighth aspect of the present invention is characterized in that the radiation transmission reducing component substrate has a feature in which a side wall is erected at an end of the radiation transmission reducing component substrate according to any one of the first to twenty-third aspects and is formed in a box shape. It is a reduced constituent base material.

According to a twenty-fourth aspect of the present invention, there is provided a radiation transmission reducing component base, wherein the radiation transmission reducing component substrate according to any one of the first to twenty-third aspects is bent or side walls are provided upright at both ends of the radiation transmission reducing component substrate. A radiation transmission reducing constituent base material characterized by being formed in a groove shape.

The radiation transmission reducing component base material according to the thirtieth invention is the radiation transmission reducing component base material according to any one of the first to twenty-third inventions, wherein a number of through holes are formed in the back thin plate.

The structure relating to the radiation transmission reduction of the thirty-first invention uses the radiation transmission reduction constituent base material in which a soil layer is laminated on the upper surface of the radiation transmission reduction constituent base material of any of the first to thirty inventions. It is a radiation protection green space and a greening structure for preventing radioactive material diffusion.

The structure according to the thirty-second aspect of the present invention relates to a radiation-protecting green base and a greenery for preventing radioactive material diffusion using the base material for reducing radiation transmission according to the thirty-first aspect, wherein turfgrass is planted in a soil layer. It is a structure.

The structure according to the thirty-third aspect of the present invention relates to a radiation transmission reduction structure, wherein rock wool fibers or a molded product thereof and a soil layer are alternately laminated on a soil layer, and the top surface is rock wool fibers or a molded product or soil thereof. It is a radiation-protecting green space and a greening structure for preventing radioactive material diffusion using the base material for reducing radiation transmission according to the thirty-first or thirty-second invention which is a layer.

The structure according to the thirty-fourth aspect of the invention for reducing radiation transmission has a large number of through-holes or band-shaped through-holes between rock wool fibers or a molded product thereof and a soil layer, rock wool fibers or a molded product thereof or a soil layer. A thirty-third aspect of the invention is directed to a thirty-third invention in which a hollow plate-like body formed by laminating a perforated front thin plate and a back thin plate having a large number of through holes or strip-shaped through holes through a plurality of ribs is laminated. It is a radiation-protected green space and a greening structure using the same to reduce radiation transmission.

The structure according to the thirty-fifth aspect of the present invention is the radiation transmission reducing structure according to the thirty-third or thirty-fourth aspect, wherein turfgrass is planted on the surface of rock wool fiber or a molded product thereof or a soil layer. It is a greening structure using radiation protection green space and radioactive material diffusion prevention measures using it.

The radiation transmission reducing component base material according to the thirty-sixth aspect, the asphalt, tile, brick, concrete, tile, stone material, artificial stone material, rubber block, A radiation transmission-reducing constituent base material, wherein any one of a rubber sheet and a building member made of wood is laminated.

The radiation transmission reducing component base material according to the thirty-seventh aspect includes a heat insulating material layer on a roof, a roof, a veranda, a terrace, or a wall of a building on which a waterproof layer is formed. 36. A radiation transmission reduction component base material according to any one of 36 to 50 to 53, wherein the radiation transmission reduction component substrate is laminated.

The radiation transmission reducing component base material according to the thirty-eighth aspect of the present invention is any one of the first to thirty-sixth or fifty to thirty-three on a building in which a waterproof layer is formed on a roof, a roof, a veranda, a terrace, or a wall of a building. It is a radiation transmission reduction constituent base material on which the radiation transmission reduction constitution base material of the invention is laminated.

A radiation transmission reducing constituent base material according to a thirty-ninth aspect is a hollow base material in which a heat insulating material layer is formed by laminating a front thin plate and a back thin plate via a plurality of plate-like ribs, and forming a gas passage by the plate-like ribs. The radiation transmission reducing component base material according to the thirty-seventh aspect, which is a plate-like body.

The radiation-transmitting reducing constituent substrate according to the fortieth invention is a seed-adhering biodegradable material which converts a plant seed between a biodegradable sheet or a polyethylene film having a plurality of holes and an oblate sheet into a soil state in a short time. Sewing or laminating at least one of a functional sheet, a nonwoven fabric having at least one nonwoven fabric adhered or impregnated with ultrafine activated carbon, and a paper sheet having at least one paper adhered or impregnated with zeolite A radiation transmission reducing component base material which is formed as a bag, wherein rock-wool or a water retention material is filled in a water-containing space inside the bag.

In the radiation transmission reducing constituent base material of the forty-first aspect, a plant seed is mixed between a region serving as an upper surface of the water retention base material and a region serving as an upper surface of the bag when placed on the ground. A radiation transmission reducing component base material according to a fortieth invention, comprising a soil layer provided.

A radiation transmission reducing component base material according to a forty-second aspect of the present invention is characterized in that, when placed on the ground, a region serving as an upper surface of the water retention substrate of the forty aspect of the invention, a region of the soil layer, and an upper surface of the bag body are Alternatively, the radiation transmission reducing component base material according to the fortieth or forty-first invention, wherein at least one or more through-holes for planting a herb or a planted portion cut linearly are formed.

The radiation transmission reducing component base material according to the forty-third aspect is configured such that a part of a peripheral part of two or more water-permeable resin sheets having an uneven surface and stacked on each other is left as a water inlet, and a remaining part of the peripheral part is provided. The radiation transmission reducing constituent base material is characterized in that a water retaining base material is filled in a water-containing space inside a bag body formed by joining the base material.

A structure according to a forty-fourth aspect of the present invention relates to a radiation structure comprising the radiation transmission reducing constituent base material according to any one of the forty to forty-second aspects laminated on the upper surface of the radiation transmission reducing constituent base material described in the forty-third aspect. Radiation protection green space and radioactive material diffusion prevention green structure using it.

The structure relating to the radiation transmission reduction according to the forty-fifth aspect of the present invention is the structure according to any one of the first to twenty-fifth aspects. A radiation-protected green space and a green-grounded structure using the same, which are laminated to reduce radiation transmission and prevent radioactive material diffusion.

The radiation transmission reducing component base material according to the forty-sixth aspect further includes a drainage pipe having a side wall having an opening formed therein, and a peripheral portion of the water-containing space or drainage channel is closed except for a part thereof, The invention according to any one of claims 1 to 17, wherein the water distribution pipe is connected to the hollow plate-shaped body such that the part of the peripheral portion of the water-containing space or the drainage channel communicates with the opening. Radiation transmission reducing base material.

The 47th aspect of the invention provides a radiation transmission reducing component base material further comprising an irrigation pipe having a side wall in which a row of through holes is formed along a longitudinal direction, wherein the irrigation pipe has a row of the through holes in the water-containing space. The radiation transmission reducing component base material according to any one of the first to seventeenth aspects, wherein the base material is connected to the hollow plate-shaped body so as to communicate with the whole or the drainage channel.

A structure according to a forty-eighth aspect of the present invention includes the radiation transmission reducing component base material according to any one of the first to twentieth aspects, and includes an upright or inclined wall, and one of the upright walls. Water-retentive water-permeable material laminated on a surface or the upper surface of the inclined wall body, and at least one of activated carbon, a water-absorbent resin, and a desiccant, or an activated carbon, a water-absorbent resin, and a desiccant attached to or impregnated in at least one nonwoven fabric Rock wool layer or a rock wool cultivation soil layer obtained by mixing rock wool and soil, and a rock wool layer or rock wool cultivation soil layer laminated on the outer main surface of the water-retentive and water-permeable sheet. Another rock wool layer or resin plate layer having a water-repellent function, which is laminated on the outer main surface and has a large number of through holes opened as planting sites, and the outside of the another rock wool or the resin plate A non-combustible or flame-retardant base material layer that is laminated on the main surface and cut as a planting site or a through hole is opened, and each layer from the water-retentive water-permeable sheet layer to the base material layer Is a radiation-protecting green space and a greening structure using the same, which are integrated with a fixing tool, to prevent radiation from spreading and to prevent the diffusion of radioactive materials.

The structure according to the forty-ninth aspect of the present invention further includes a plant planted in the through hole of the base material layer, the radiation-protecting green base material using the radiation-transmission reducing constituent base material of the forty-eighth aspect, and It is a greening structure to prevent radioactive material diffusion.

The structure according to the fiftieth aspect of the present invention is characterized in that the front thin plate and the back thin plate each have a plurality of plate-like, cylindrical, truncated-cone, honeycomb, prismatic, truncated-pyramidal, or lattice-shaped ribs. Any one of a hollow plate-like body, a resin plate, a resin sheet, and a rubber sheet laminated via a diaper, or a culvert on the upper surface of the radiation transmission reducing constituent base material according to any one of the first to seventeenth aspects. The shape is plate-like, box-like, gutter-like, scoop-like, uneven, sponge-like or corrugated-like, and the thickness is 0.03 mm or more on the upper surface of the base material in which a plurality of through holes are formed. 10 g / m2 or more of nonwoven fabric / or nonwoven fabric to which activated carbon is attached or impregnated, two nonwoven fabrics are joined in a grid, and a fertilizer or a mixture of fertilizer and activated carbon is sealed between the upper and lower nonwoven fabrics of the generated grid. At least one of the plant growing sheets A particle formed of rock wool fibers having a density of 25 kg / m3 or more is laminated on the upper surface thereof, and a soil layer is laminated on the upper surface of the rock wool fibers. It is a radiation protection green space and a radiological greening structure using it.

The structure according to the fifty-first aspect of the invention relates to a radiation transmission reduction structure, wherein the front thin plate and the back thin plate are formed of a plurality of plate-like, cylindrical, truncated-cone, honeycomb, prismatic, truncated-pyramidal, or lattice-shaped ribs. Any one of a hollow plate-like body, a resin plate, a resin sheet, and a rubber sheet laminated via a diaper, or a culvert on the upper surface of the radiation transmission reducing constituent base material according to any one of the first to seventeenth aspects. The shape is plate-like, box-like, gutter-like, scoop-like, uneven, sponge-like or corrugated-like, and the thickness is 0.03 mm or more on the upper surface of the base material in which a plurality of through holes are formed. 10 g / m2 or more of nonwoven fabric / or nonwoven fabric to which activated carbon is attached or impregnated, two nonwoven fabrics are joined in a grid, and a fertilizer or a mixture of fertilizer and activated carbon is sealed between the upper and lower nonwoven fabrics of the generated grid. At least one of the plant growing sheets Fertilizer on the upper surface thereof, humus, mineral and rock wool fibers radiation protective green soil layer using the same radiation transmission reduction structure base material are laminated containing and radioactive material diffusion prevention greening structure.

The structure according to the radiation transmission reduction of the fifty-second invention is the radiation transmission reduction structure of the fifty-first or fifty-first invention on the upper surface of the radiation transmission reduction constituent substrate of any one of the first to seventeenth, twenty-fourth, twenty-fourth and forty-third inventions. Radiation-protected green space and radioactive material diffusion prevention measures using the greenery structure. Radiation-protection green space and radioactive material diffusion prevention greenery structure using the base material. It is a structure.

The fifty-third aspect of the present invention provides a radiation transmission reducing component base material comprising at least one sheet between a nonwoven fabric and a paper, between a paper and an oblate sheet, a nonwoven fabric or a sheet in which activated carbon is adhered or impregnated to any of the sheets, or at least one sheet. Activated carbon is adhered or impregnated between the biodegradable fibers and the oblate sheet, and the non-woven fabric and paper, paper and oblate sheet, non-woven fabric, paper, and activated carbon having substantially the entire biodegradable fiber and oblate sheet A radiation transmission-reducing constituent base material having the characteristic of an adsorbing sheet form which is an ultrafine activated carbon having a particle size of 990 μm or less.

The fifty-fourth aspect of the radiation transmission reducing constituent base material is formed by joining any one of a plurality of the radioactive substance-adsorbing sheets of the fifty-third invention or two nonwoven fabrics in a lattice shape, and forming a gap between the upper and lower nonwoven fabrics in the lattice. And a mixture of zeolite and activated carbon, wherein the particle size of the zeolite and activated carbon is 990 μm or less.

A fifty-fifth aspect of the invention is a radiation transmission reducing constituent base material, wherein a water retention base material is placed on one main surface of the suction sheet according to the fifty-third or fifty-fourth invention, and the sheet is wound so that the end face of the sheet becomes spiral. The radiation transmission reducing constituent base material, characterized in that the end portion or the vicinity of the end portion of the wound body is closed leaving a part.

The radiation transmission reducing constituent base material of the fifty-sixth invention is a carbon fiber, a glass fiber woven fabric, a resin fiber woven fabric, a nonwoven fabric, a resin film, a paper, an activated carbon bonded sheet obtained by adhering or impregnating activated carbon, and an additive mixed with rubber. A single sheet that is one of a rubber sheet, a resin sheet obtained by mixing an additive with a resin, a resin sheet, and an aluminum adhesive sheet coated on one side with a resin, or Of the one main surface of the laminated sheet formed by laminating a plurality of sheets, the water retention base material is placed in one side region from a substantially center line position, and the other side region is overlapped facing the one side region. Radiation transmission as a bonded sheet formed by folding one sheet or the laminated sheet and joining the one side area and the other side area along the edge of the water-retaining substrate or along the outside of the edge. Reduction structure Which is a base material.

A radiation transmission reduction container according to a fifty-seventh aspect includes:
A bottomed or bottomless outer container,
A bottomed or non-bottomed inner container arranged inside the outer container so that the side wall and the bottom recede inward from the outer container,
A radiation transmission reduction container, comprising: a water retention base material filled in a gap between the outer container and the inner container.

A radiation transmission reduction container according to a fifty-eighth invention, wherein the outer container according to the fifty-seventh invention has no bottom, and an inner container or inner bag made of a net arranged inside the bottomless container,
A radiation transmission-reducing container, comprising: activated carbon or a water-retentive substrate filled in a gap between the outer container and the inner container or the inner bag made of the mesh.

A radiation transmission reducing container according to a fifty-ninth aspect is the radiation transmission reducing container according to the fifty-eighth aspect, wherein the outer container has a lower or lower portion.

A radiation transmission reduction container according to a sixtieth aspect, wherein an inner bag disposed inside the outer bag so as to retreat inside the outer bag,
A radiation transmission reduction container, comprising: a water retention base material filled in a gap between the outer bag body and the inner bag body.

The radiation transmission reducing container according to the sixty-first aspect, wherein any one of an annular band, a honeycomb-like plate, a lattice-like plate, and a rectangular hollow body is attached to a region of a bottom surface of the inner container or the inner bag. The radiation transmission reduction container according to any one of claims 57 to 60, further comprising a band, a honeycomb-like plate, a lattice-like plate, and a water retention substrate in a rib inside region of the rectangular hollow body.

A radiation transmission reduction container according to a 62nd aspect, wherein the inside of the inner bag or the inner container is filled with a radioactive substance or an object which is contaminated with a radioactive substance and emits radiation. The radiation transmission reduction container according to the invention.

The radiation transmission reduction container of the thirty-third invention, wherein the inner container is a bottomless or bag body,
62. The radiation transmission reduction container according to any of the fifty-seventh to sixty-sixth inventions, further comprising a plate-shaped body attached to the outer container so as to cover the bottom of the inner container or the bag body without the bottom.

The radiation transmission reduction container of the sixty-fourth invention has a shape in which a bottomed or non-bottomed outer container, or a bottomed or non-bottomed inner container is divided into a plurality, and the divided end portion of the plurality of containers is formed by The radiation transmission reduction container according to any one of Items 57 to 63, characterized in that the container is fixed with a fixing member to form the bottomed or bottomless outer container or the bottomed or bottomless inner container.

A radiation transmission reduction container according to a sixty-fifth aspect of the present invention is configured such that a through hole or a cutout from the upper end is formed in an upper end portion of the outer container, and the cutout is disposed so as to pass through the through hole or the cutout. 57. The radiation transmission reduction container according to any of the fifty-seventh to sixty-fourth inventions, further comprising an irrigation pipe opening in the gap with the above.

The radiation transmission reduction container according to the 66th invention, further comprising a hanging cord attached to the outer container or the outer bag, the radiation transmission reduction container according to any one of the 57th to 65th inventions, container.

The radiation transmission reduction container according to a sixty-seventh aspect is the radiation transmission reduction container according to any one of the fifty-seventh to sixty aspects, further comprising a lid covering an upper part of the outer container.

A radiation transmission reducing lid according to a sixty-eighth aspect of the present invention includes a lid that covers an upper portion of the outer container, and includes a water-containing space, and the water-containing space is filled with activated carbon or a water-retaining material. Reduction lid.

A radiation transmission reducing container according to a 69th aspect, wherein the water retention substrate according to the 57th to 68th aspects is the radiation transmission reducing composition substrate according to the 71st, 72nd or 74th aspect.

The radiation transmission reducing component container according to the seventieth aspect is configured such that after the water retention material according to any one of the fifty-seventh to sixty aspects is filled in the gap, the water retention material is injected into the water retention material to contain the water retention material. Radiation reduction container.

The radiation transmission reducing constituent substrate according to the seventy-first aspect, wherein the water retention substrate is a mineral fiber, a mineral fiber molded product, a resin fiber, a resin fiber molded product, a glass fiber, a glass fiber molded product, a carbon fiber, a carbon fiber molded product, Ceramic fiber, ceramic fiber molded product, fine carbon, paper, newsprint, paperboard, super absorbent polymer resin, humus, non-woven fabric, cloth, cotton, plant fine powder, grain, salt, sweetener, wood, soil, wax , Pulp, mineral fine powder, seaweed fine powder, algae, blast furnace slag fine powder, steel slag, sand, sodium chloride, barium, fertilizer, feed, humus, volcanic ash, barium sulfate colloid solution, paraffin, cellulose, activated carbon, charcoal Attach or contain fibers, plaster, cement, color sand, minerals, sponges, desiccants, pigments, sacran (suisenjinori), preservatives, resin pellets, resins, superabsorbent polymers The first to 70 or 73, 75 are at least one of the following nonwoven fabrics, nonwoven fabrics or fibers in which at least one nonwoven fabric is adhered or impregnated with finely divided carbon having a particle size of 1200 μm or less. 90. The radiation transmission-reducing constituent substrate according to any one of the above-mentioned items.

The radiation transmission reducing constituent substrate according to the seventy-second aspect, wherein the mineral fiber molded body is rock wool granular cotton or rock wool granular cotton perforated bag package, rock wool plate or perforated rock wool plate. 71. The radiation transmission reducing component base material according to the seventy-first aspect, wherein the package, rock wool felt or rock wool felt perforated bag package, and the glass fiber is glass wool.

The radiation transmission reducing component base material of the seventy-third invention is a polyethylene resin sheet or a bag made of a polyethylene resin film, a polyethylene resin film having a front surface of a polyethylene resin sheet and a back surface having a plurality of perforations. A radiation transmission reducing configuration in which any one of the bag bodies having a layer structure is filled with the water retention substrate of any one of the 71st and 72nd inventions, and the bag body has at least one or more water inlets. Base material.

A seventy-fourth aspect of the present invention provides the radiation transmission reducing component base material, wherein the water retention base material has a shape stabilizer (polyethylene glycol), an oil, a molybdic acid aqueous solution, a barium sulfate colloid solution, an epoxy resin, sodium tungstate, a gel-like liquid, and a varnish. The radiation transmission reducing constituent substrate according to any one of the first to 73 or 75 to 90 inventions, wherein any one of ethanol, a surfactant, a fluorinated surfactant and a solution having a large mass is injected into the water retaining substrate.

A radiation transmission reduction structure according to a seventy-fifth aspect of the present invention is equivalent to a half of the cavity at a row of cavities penetrating from one main surface to the other main surface of the rectangular parallelepiped and at both ends of the rectangular parallelepiped in the arrangement direction of the rows of the voids. A container having a concave, having a concrete block-like outer shape and having a water inlet,
And a water retention substrate filled in the container.

The radiation transmission reducing composite structure according to a seventy-sixth aspect, wherein the plurality of rows are arranged in the arrangement direction of the rows of the cavities and in the axial direction of the rows of the cavities, respectively, to form a wall. A plurality of radiation transmission reduction structures;
Penetrating at least a portion of the row of cavities and the recesses of each of the plurality of radiation transmission reduction structures, and passing through the plurality of radiation transmission reduction structures arranged in the axial direction of the rows of cavities; A plurality of reinforcements arranged to
A mixture of a water retention base material and water or a mixture of a water retention base material and a bonding agent, which fills the rows of cavities and the recesses of each of the plurality of radiation transmission reduction structures. It is a radiation transmission reduction composite structure.

A composite structure for reducing radiation transmission according to a seventy-seventh aspect of the present invention includes:
A radiation transmission reduction characterized by comprising a weather-resistant and water-shielding storage container, or an inevitable, flame-retardant and water-shielding storage container that stores and seals the radiation transmission reduction structure and water. It is a composite structure.

The radiation transmission reducing constituent substrate and the composite structure according to the seventy-eighth aspect of the present invention are the radiation transmitting reducing constituent base material according to any one of the first to 77th aspects, wherein the water retaining substrate is the aforementioned water-containing space, container, or bag. The radiation transmission reducing constituent base material and the radiation transmission reducing composite structure are characterized in that the water retaining substrate is filled with water and then water is injected into the water retaining substrate so that the water retaining substrate is hydrated.

A radiation transmission reducing wall structure according to a seventy-ninth aspect, comprises: a concrete foundation;
A plurality of pillars erected on the concrete foundation at intervals from each other, and among the plurality of pillars, a plurality of wire ropes having bolts fixed to both ends bridged between adjacent pillars,
At least one radiation transmission reducing component substrate or radiation transmission reducing composite structure attached to the wire rope,
The radiation transmission reduction structure is the radiation transmission reduction structure of any one of the first to twenty-fourth inventions, and the radiation transmission reduction composite structure is one of the 48th, 49th, 56th, or 70th to 76th. A radiation transmission reduction wall structure, which is the radiation transmission reduction composite structure according to any of the inventions.

An 80th aspect of the present invention provides a radiation transmission reducing wall structure, comprising: a plate member arranged to form a container or a flameproof sheet formed by laminating a nonflammable sheet or a flameproof sheet with a mesh material; Comprising a water retention substrate or a water retention substrate and a gas phase body,
A radiation transmission reducing wall structure, wherein the plate material or the flameproof sheet has a through hole or a notch that allows planting or water injection.

The radiation transmission reducing wall structure according to an eighteenth aspect, wherein the container has a slope, and a band-shaped through-hole extending substantially horizontally is formed in a region of the plate member forming the slope. The radiation transmission reducing wall structure of the invention.

The radiation transmission reducing wall structure according to the 82nd aspect of the present invention is further provided with a framework installed inside the container and holding a shape of the plate or the netting sheet as a container. Transmission reduction wall structure.

The radiation transmission reducing wall structure according to the 83rd aspect, wherein the plate is a resin plate,
The radiation transmission reduction according to any of the 80th to 82nd aspects, wherein the radiation transmission reduction wall structure further comprises a flameproof sheet or the netproof flame sheet laminated on a surface of at least a part of the resin plate. Wall structure.

The radiation transmission reducing wall structure according to the eighty-eighth aspect, wherein the plate member is a hollow plate-like body in at least a part of the region,
The radiation transmission reduction wall structure according to any one of aspects 80 to 83, wherein the hollow plate-like body includes a plurality of ribs, and a top sheet and a back sheet laminated via the plurality of ribs.

The radiation transmission reducing wall structure according to the eighty-fifth aspect includes a partial bottom region inside the container, a partial lower region of a skeleton base material installed inside the container, and a lower surface of a bottom plate member arranged in the container. The hollow plate-like substrate, the metal substrate, the concrete substrate, the stone substrate, the resin substrate, or the mineral substrate according to the eighth to eighth inventions or the eighty-fourth invention, in a partial region or any external region exceeding the region. Any of the materials, the skeleton base material or the bottom plate material and the hollow plate-like base material, the metal base material, the concrete base material, the stone base material, the resin base material, and the mineral base material arranged in the container 85. The radiation transmission reducing wall structure according to any one of the 80th to 84th inventions, wherein the lower and the upper can be connected to each other by a joining member or a fixing member.

The radiation transmission reducing wall structure according to the eighty-sixth aspect, wherein at least two of the radiation transmission reducing wall structures are connected to a side surface of the same other radiation transmission reducing wall structure. The radiation transmission reducing wall structure according to the invention.

The radiation transmission reducing constituent base material of the eighty-seventh aspect is a fine-changing type containing activated carbon in a partially void region inside any of a fiber molded body, a glass fiber molded body, and a ceramic fiber molded body mainly composed of blast furnace slag. A fibrous molded article filled with any of carbon, zeolite, and a mixture of fine-changing carbon containing zeolite and activated carbon.
A radiation transmission-reducing constituent base material in which the activated carbon and zeolite have a particle size of 1100 μm or less, and a resin is attached to or impregnated with a fiber of the fibrous formed body to form a water barrier.

The radiation transmission reducing constituent base material of the eighty-eighth invention includes rubber, carbon fiber, carbon fiber fabric, resin fiber, resin fiber fabric, blast furnace slag fiber, mineral fiber, mineral fiber fabric, resin film, metal foil, polyurethane, and resin sheet. At least one gas phase body and a liquid phase body packaged with a water-impervious sheet formed by pressing and bonding at least two of any of the substrates, or packed with a bag made of the water-impervious sheet A fixing member for fixing so as to be stacked,
The fibrous formed body having countless minute voids in the gas phase body, and the liquid phase body having at least one water inlet in the water-blocking sheet covering the liquid phase body has a 71st, 72nd, or 72nd shape. 74. A radiation transmission-reducing constituent substrate, comprising:

The 89th aspect of the invention is a radiation-controlled green base material, a radiation-transmission reduced container, a radiation-transmission reduced structure, and a radiation-protected green space and a radioactive material diffusion prevention green space structure using the same. After radioactive material is diffused from a business establishment or a business that handles radioactive material,
Radioactive materials that are diffused and are in a stationary state due to adhesion or sedimentation at various locations, and objects to which the radioactive materials are attached or precipitated are decontaminated and placed in a wide area inside or outside the business place. Forests, agricultural lands, school yards, gardens, gardens, stadiums, parks, road slopes, parking lots, where storage or storage facilities, storage facilities, or surrounding areas, or where radioactive material has been deposited or settled statically after the said diffusion. , Buildings, trees, irrigation canals, rainwater permeable basins, rainwater drainage basins, gutters, and other places where radiation caused by radioactive materials is released, in the vicinity, and underground storage facilities that store radioactive materials for many years, Alternatively, any one of the first to 86th inventions is exceptional in a disposal facility, a radiation transmission reducing component, a radiation transmission reducing container, a radiation transmission reducing structure, and a radiation protection green space using the radiation transmission reducing component. Fine amount of radiation stationary and radiation of radioactive material and radioactive material diffusion prevention provided greening structure has the characteristic that can be stably reduced to persistent.

  A ninetieth invention is directed to the radiation transmission reducing constituent substrate according to any one of the first to 56th and 71th to 79th inventions, and the radiation protection green space and the radioactivity of the 31st to 35th, 44th, 45th and 48th to 52th inventions. This is a radiation shielding method for shielding radiation using the green space structure for preventing substance diffusion, the radiation transmission reduction container according to any of the fifty-seventh to sixty-seventh, and the lid according to the sixty-eighth invention. .

As described above, according to the radiation-transmitting reduction base material of the present invention and the radiation-protection green base material and the greening structure for preventing radioactive substance diffusion using the same, according to the function of the water-retaining base material, Water can be stored in the space, and the effect of reducing radiation transmission can be stably exhibited. The effect of preventing scattering is also obtained by the function of physically adsorbing the radioactive substance to the fine-changing carbon. The factor of this effect is that the water-retaining base material is filled in the water-containing base material created by the structure of the front and back thin plates, the plurality of ribs, and the peripheral edge closing member. It maintains a static state without any water and can keep water content permanently. In addition, the water retention material is not affected by changes in water content due to evaporation due to the surrounding high temperature heat environment, changes in degradation of water retention materials by microorganisms, and changes in soil water content due to plant evapotranspiration. There is no change in the water content present in.
With this configuration, the weight of the hollow plate-shaped member, the weight of the water-retaining substrate, and the weight of the initial water content contained in the water-retaining substrate can be maintained, so that the effect of reducing radiation transmission can be continuously exerted. In addition, since water can be injected into the water-containing space at or near the installation site, the burden of transportation is reduced. Further, the burden on an operator who carries a heavy object exhibiting the conventional radiation shielding effect can be reduced.

In addition, the shielding factor of the invention that can be estimated separately from the above-described radiation transmission reduction effect factor includes suppression of electromagnetic waves of radiation by a high-density resin and a molded resin.

A resin material having insulation and heat resistance, a rubber sheet obtained by pressing resin and rubber, and a fiber molded body made of an inorganic blast furnace slag produced in the course of steelmaking in a fiber shape have heat resistance. The action is to suppress electromagnetic waves of radiation.

Since the density of the thermoplastic resin and the gas-phase portion derived from fibers and carbon made of minerals are formed in a special shape, the gas-phase portion can maintain a static state without being affected by external force. Factors for maintaining a static state include suppressing heat conduction of radiation.
Furthermore, a large amount of water or a liquid having a large specific gravity, which is a compound of hydrogen and oxygen, existing in a static state on a water-retaining substrate (liquid phase), which is an aggregate of fibers made of a mineral having a high water content, is used. It is conceivable to suppress electromagnetic waves and heat conduction of radiation based on the structure integrated with the structure.

In this way, in addition to the property of hardly conducting electricity and heat, a compound that keeps water and oxygen in a static state in addition to a single body or a liquid phase part and a gas phase part of the present invention formed in place are formed in each structure. By doing so, we predicted that the radiation shielding effect, which is different from the radiation shielding effect caused by the load, would increase significantly. Further, the hollow plate-shaped member having the air layer and the respective substrates according to the present invention exhibit a radiation transmission reducing effect particularly, but can be manufactured at low cost.

FIG. 1A is a perspective view showing a radiation transmission reducing component base material according to Embodiment 1 of the present invention. FIG. 1B is a perspective view of the water-containing space according to the first embodiment in which a water retention substrate and a rib are provided. FIG. 1C is a cross-sectional view according to the first embodiment. FIG. 1D is a cross-sectional view according to the first embodiment. FIG. 1E is a cross-sectional view according to the first embodiment. FIG. 1F is a cross-sectional view according to an example of the second embodiment. FIG. 2 is a perspective view showing an example of Embodiment 1 of the present invention. FIG. 3 is a perspective view showing an example of Embodiment 2 of the present invention. FIG. 4A is a perspective view showing an example according to the second embodiment, and the dotted line portion shown between (b) and (b) of the second embodiment is a cross-sectional perspective view of (b) and (c). FIG. FIG. 5A is a perspective view illustrating an example of the second embodiment of the present invention, and FIG. 5B is a cross-sectional view of a portion indicated by a dotted line between (A) and (A) of the third embodiment. is there. FIG. 6A is a perspective view of a third embodiment of the present invention in which a band-shaped through hole is formed, and FIG. 6B is a perspective view of an example showing a partial configuration and structure of the third embodiment. . FIGS. 7A, 7B, and 7C are cross-sectional views illustrating a plate-shaped rib according to the fourth embodiment. FIG. 8 is a perspective view of Embodiment 5 of the present invention. 9A and 9B are cross-sectional views taken along dotted lines between (A) and (A) in the perspective view shown in FIG. 8, where (A) is a cross-sectional view of the fifth embodiment, and (B) is a cross-sectional view of the fifth embodiment. FIG. 6C is a perspective view illustrating two ribs of the sixth embodiment. FIG. 10A is a perspective view showing the configuration of the tenth embodiment of the present invention, and FIG. 10B is a perspective view showing the configuration of the second embodiment. FIG. 11 is a perspective view showing an example showing a part of the configuration of the seventh embodiment of the present invention. FIG. 12 is a perspective view (a) and a partial cross-sectional view (b) showing an example of Embodiment 9 of the present invention. FIG. 13A is a perspective view showing a configuration of an example of Embodiment 9 of the present invention. FIG. 13B is a partial cross-sectional view of FIG. FIG. 13C is a perspective view of an example of the eighth embodiment of the present invention. FIG. 13D is a cross-sectional view of another example of Embodiment 8 of the present invention. FIG. 13E is a cross-sectional view of another example of Embodiment 8 of the present invention. FIG. 13F is a transparent perspective view of another example of the eighth embodiment of the present invention. FIG. 13G is a cross-sectional view of another example of Embodiment 8 of the present invention. FIG. 14 is a perspective view of an example according to Embodiment 20 of the present invention. FIG. 15 is a perspective view and a partial cross-sectional view (b) of an example according to Embodiment 20 (a) of the present invention. 16A and 16B are cross-sectional views according to Embodiment 16 of the present invention. FIG. 17 is a sectional view of an example according to Embodiments 1, 2, 3, 9, 15, 19, 23, 31, and 32 of the present invention. FIG. 18 is a cross-sectional view of an example according to Embodiments 1, 2, 3, 9, 15, 19, 23, 31, and 32 of the present invention. FIG. 19 is a cross-sectional view of an example according to Embodiments 1, 2, 3, 15, 19, 23, 31, and 32 of the present invention. 19 (a), (b) and (c) are cross-sectional views of an example according to the first, second, third, ninth, fifteen, nineteen, twenty-three, thirty-one, thirty-second, and thirty-eighth embodiments of the present invention. FIG. 21 is a perspective view, (b) a top view, and (c) a cross-sectional view according to a fortieth embodiment of the present invention. FIG. 22 is a (a) sectional view according to Embodiment 42 of the present invention, and (b) and (c) are perspective views. FIGS. 23A and 23B are cross-sectional views according to Embodiments 40, 41, and 42 of the present invention. FIGS. 24A and 24C are perspective views according to Embodiment 43 of the present invention, and FIG. 24B is a cross-sectional view. FIG. 25 is a cross-sectional view showing a configuration according to the forty-sixth embodiment of the present invention, and FIG. 25B is a perspective view. FIG. 26 is a perspective view showing an example according to Embodiment 47 of the present invention. FIG. 27 is a cross-sectional view according to Embodiment 48 of the present invention. FIG. 28 is a cross-sectional view showing an example according to Embodiment 48 of the present invention. 29A and 29B are cross-sectional perspective views according to Embodiment 48 of the present invention. FIGS. 30A and 30B are cross-sectional views in which Embodiments 28 and 48 of the present invention are integrated. 31A and 31B are cross-sectional views according to Embodiments 48 and 79 of the present invention. FIG. 32 is a cross-sectional view according to Embodiments 79 and 48 of the present invention. FIGS. 33A and 33B are diagrams according to the embodiments 53, 54, and 55 of the present invention. FIG. 33A is an exploded top view, FIG. 33B is a perspective view of a wound object, and FIG. (A) It is a sectional view below the dotted line. FIG. 34 is a cross-sectional view according to Embodiments 57 and 68 of the present invention. FIG. 35 is a cross-sectional view showing an example according to Embodiments 61, 62, 63, and 67 of the present invention. FIG. 36 is a cross-sectional view according to Embodiments 61 and 68 of the present invention. FIG. 37 is a cross-sectional view according to Embodiments 61, 63, 64, and 68 of the present invention. FIG. 38 is a cross-sectional view showing an example according to Embodiments 61, 63, and 67 of the present invention. FIG. 39 is a top view (a) and a perspective view (b) showing an example according to the embodiment of the present invention. FIG. 40 is a cross-sectional view showing one example of 64 and 68 according to the embodiment of the present invention. FIG. 41 is perspective views (a) and (c) according to Embodiments 75 and 76 of the present invention, and the lower part indicated by a dotted line in (a) is shown as a cross-sectional view (b). FIG. 42 is an example showing a sectional view (a), a perspective view (b), and an expanded view of (b) according to the embodiment 77 of the present invention. FIGS. 43A and 43B are perspective views (a) and (b) showing an example according to Embodiment 79 of the present invention. FIGS. 44A and 44B are sectional views (a) and (b) showing an example according to Embodiment 80 of the present invention. FIG. 45 is perspective views (a) and (b) showing an example according to Embodiment 80 of the present invention. FIG. 46 is a perspective view showing an example according to Embodiment 80 of the present invention. FIGS. 47 (a) and 47 (b) show other embodiments related to the embodiments 37 and 38 of the present invention. FIG. 48 is cross-sectional views (a), (b), and (c) showing an example according to Embodiment 80 of the present invention. FIG. 49 is a cross-sectional view (a) illustrating an example according to the embodiments 80, 81, and 82 of the present invention, and a cross-sectional view (b) illustrating an example according to the embodiments 81 and 82 of the present invention. FIGS. 50A and 50B are perspective views (a) and (b) showing an example according to the embodiments 80, 81, 82, 83, 84 and 85 of the present invention. FIG. 51 is a cross-sectional view (a) illustrating an example according to the embodiments 80, 81, 82, and 83 of the present invention. FIGS. 52A and 52B are cross-sectional views (a) and (b) perspective views according to Embodiments 80, 81, 82, 83 and 84 of the present invention. FIG. 53 is perspective views (a) and (b) and a cross-sectional view showing an example according to the embodiments 80, 81, and 82 of the present invention. FIGS. 54A and 54B are perspective views (a) and (b) showing an example according to the embodiments 80, 81, 82, 83, 84, 85 and 86 of the present invention. FIG. 55 is a top view (a) and cross-sectional views (b) and (c) showing an example according to Embodiment 50 of the present invention. FIG. 56 is cross-sectional views (a), (b), (c), and (d) showing an example according to Embodiment 51 of the present invention. FIG. 57 is a top view (a) and cross-sectional views (b) and (c) showing an example according to Embodiment 50 of the present invention. FIG. 58 is a cross-sectional view showing an example according to Embodiment 14 of the present invention. FIG. 59A is a cross-sectional view illustrating an example according to Embodiment 17 of the present invention. FIG. 59B is a cross-sectional view showing another example according to Embodiment 17 of the present invention. FIG. 59C is a cross-sectional view showing another example according to Embodiment 17 of the present invention. FIG. 59D is a cross-sectional view showing another example according to Embodiment 17 of the present invention. FIG. 59E is a cross-sectional view showing another example according to Embodiment 17 of the present invention. FIG. 60 is a sectional view (a) showing an example according to the eighteenth embodiment of the present invention and a sectional view (b) showing an example according to the thirty-sixth embodiment of the present invention. FIG. 61 is a perspective view showing an example according to Embodiment 57 of the present invention. FIG. 62 is a perspective view showing an example according to Embodiment 57 of the present invention. FIG. 63 is perspective views (a), (b) and (c) sectional views showing an example according to the embodiment 87 of the present invention. FIG. 64 is a perspective view (a), a sectional view (b), and a top view (c) showing an example according to the embodiment 88 of the present invention.

<First embodiment>
This embodiment includes a plurality of ribs 4 and at least one face sheet and a back sheet laminated via the plurality of ribs 4, and is sandwiched between the face sheet and the back sheet, The water-containing space 5 or the hollow plate-like body 1 forming the water-containing space 5 and the gas phase portion 118 in the region excluding the plurality of ribs 4 and the hollow region of the hollow rib 4, This corresponds to a specific example of a configuration in which the water-holding base material 6 filled in the water-containing material or the water-holding base material 6 filled in the water-containing space 5 and the gas phase portion 118 are provided.
According to this configuration, water can be stored in the water-containing space 5 by the function of the water-retaining substrate 6, and a radiation shielding effect can be exhibited. In addition, the gas phase portion 118 can hold an air layer that keeps a stationary state, and can exhibit a radiation shielding effect. An effect of preventing scattering of radioactive substances can also be obtained. Since the water-containing space 5 is filled with the water-retaining base material 6, the water retention is good. Further, the gas phase portion 118 is also filled with a molded body made of countless fibers mainly made of inorganic blast furnace slag to which a resin serving as a gap holding base material is adhered or impregnated, so that it is good for holding still air. . The hollow plate member can be manufactured at low cost. Further, since water can be injected into the water-containing space 5 at the installation site, the burden of transportation is reduced.
Furthermore, the work load of carrying heavy objects that exhibit the conventional radiation shielding effect can be reduced.

Next, this embodiment will be described with reference to the drawings.
As shown in the upper diagram (a) of FIG. 1, a rib 4 is formed between the front thin plate 2 and the back thin plate 3, and a space excluding the rib 4 becomes a water-containing space 5. Material 6 is filled. The water retention base material 6 is a granular material of rock wool, and contains a water content of about five times the weight of the rock wool. Therefore, when water is injected into the rock wool granules weighing 20 kg per square meter until water is saturated, the total weight of the rock wool granules and water is about 120 kg per square meter. With this weight, it is theoretically predicted that the transmittance of gamma rays, which is highly transmissive radiation, is suppressed to about 50%. Further, it is possible to manufacture the hollow plate-like body even in a configuration in which the positions and the intervals of the ribs 4 are fixed positions and the intervals are constant, or the positions of the ribs 4 are random and the intervals are not constant intervals. However, it is recommended to design and manufacture by calculating the shielding effect of the radioactive substance and the fixing effect by the load in consideration of the amount of the water retention base material and the water content.
In the lower diagram (b), the upper thin plate 2 in the upper diagram is separated from the upper surface of the rib 4. The positions of the ribs 4 shown in this figure are examples of the positions of the ribs 4 which are not at regular intervals. The shape of the ribs 4 is such that the cylindrical ribs 4 are selected and the water-retaining base material 6 is formed in the water-containing space 5. It is filled without gaps except the peripheral space.

The cross-sectional view of FIG. 3C shows that a plurality of cylindrical hollow ribs 4, a water-containing space 5, and a gas phase portion 118 are formed between the front thin plate 2 and the back thin plate 3, and the hollow rib 4 has a water retention base. Rock wool granules 101 as the material 6 are filled. In addition, the hollow ribs 4 forming the water retention base material 6 and the gas phase part 118 are shown. The upper region between the front thin plate 2 and the back thin plate 3 is configured as a gas phase portion 118. A water-repellent heat insulating material 42, which is a molded product of rock wool, is configured to remain stationary in the gas phase portion 118. The water of the water retention base material 6 is intercepted at the boundary between the water retention base material 6 and the water-repellent heat insulating material 42 via the water impervious sheet 76. As the water shielding sheet 76, a rubber sheet having a thickness of 0.3 mm formed by pressing a resin for preventing moisture permeation and a fluorine rubber is selected. It is also preferable to select a resin film. According to the configuration of the present invention, the water-retaining base material 6 is filled in the water-containing space 5 which is a liquid-phase portion, and the water is kept stationary so that the water load at the time of water-retention is maintained. Forty-two infinitesimal air layers can reduce heat conduction. Further, this is an example in which it is predicted that the configuration of a resin plate having a high density and an antistatic effect will be useful for reducing shielding of radioactive substances. It is preferable to install the structure of the present invention in close proximity to a portion contaminated with a radioactive substance, since it can be inferred that the structure of the present invention can obtain an effect of reducing transmission of radiation emitted from the radioactive substance, which is preferable.

Further, an example of a cross-sectional view shown in the lower diagram (d) shows that a plurality of ribs 4 whose upper surfaces in a truncated cone shape are joined to each other between an upper thin plate 2 and a lower thin plate 3 constituting a gas phase portion 118 in an upper layer portion. It is configured. The surface of the surface thin plate 2 at the position constituting the rib has a concave shape. The space thickness between the front thin plate 2 and the back thin plate 3 is 15 mm. The region excluding the ribs is the gas phase portion. In the lower layer constituting the gas phase portion, a water retention base material 6 and a water containing space 5 are formed inside a plurality of cylindrical hollow ribs. The upper surface of this cylindrical rib is joined and welded to the back plate 3 shown in the upper layer. Further, the water retention base material 6 is filled between the bottom thin plate 3 on the bottom surface and the thin bottom plate 3 constituting the gas phase part 118. The plurality of concave portions of the surface thin plate 2 are filled with either ultrafine activated carbon having a particle size of 980 μm or less, zeolite having a particle size of 980 μm or less, or a mixture of ultrafine activated carbon having a particle size of 980 μm or less and zeolite. In addition, a form in which a resin film or a rubber-coated cloth formed by pressing a resin and rubber is bonded to the upper surface of the surface thin plate 2 having the mixture is also preferable because it can be predicted that it will be useful for reducing the shielding of radioactive substances.

Further, as another related embodiment, a plurality of truncated cone-shaped upper surfaces are joined between the front thin plate 2 and the rear thin plate 3 constituting the gas phase portion 118 in the upper layer portion shown in FIG. A plurality of concave portions formed on the front thin plate 2 and the back thin plate 3 of the hollow plate body in which the ribs 4 are formed, ultrafine-grained activated carbon having a particle size of 980 μm or less, or zeolite having a particle size of 980 μm or less; A sheet in which one of a mixture of ultrafine-grained activated carbon and zeolite having a particle size of 980 μm or less is filled, and a fluororesin film is bonded to the surface of an aluminum foil on the upper surface of the thin plate 2 having the mixture; Alternatively, a rubberized cloth formed by pressing resin and rubber is bonded. Alternatively, the same resin plate or the same resin plate as the hollow plate body is integrated on the upper surface of the surface thin plate 2 by a bonding means such as heat fusion, adhesion, adhesion or the like, and countless fine particles useful for reducing shielding of radioactive substances. It is also possible to choose to produce a hollow plate with holes. Since ultrafine-grained activated carbon and zeolite have pores similar in size to radioactive materials, they are useful for adsorbing radioactive materials and reducing the permeation of radioactive materials due to the influence of air or water vapor in ultra-micropores. Then, it is preferable because it is possible to predict and reduce the dose permeation related to the antistatic of the resin.
Ultrafine grains having a particle size of 980 μm or less are formed in a region excluding a plurality of ribs of a hollow plate in which a plurality of ribs 4 each having a truncated cone-shaped upper surface joined between the front thin plate 2 and the back thin plate 3. Activated carbon or zeolite with a particle size of 980 μm or less, filled with any of a mixture of ultrafine-grained activated carbon and zeolite with a particle size of 980 μm or less, and the same resin material in which the periphery of the hollow plate is formed into a hollow plate Weld and close. Alternatively, the inside of the peripheral edge of the hollow plate is bent and heat-sealed or thermo-compressed to close. This form of the plate is useful for reducing shielding of radioactive materials.
Further, the form of the hollow plate having the innumerable fine holes specified in the other embodiments related to the above and the plate body of the form closed by bending and heat welding near the inner periphery of the peripheral edge of the hollow plate are combined. It is also preferable to manufacture a radioactive material shielding reduction plate. It is preferable to replace the plate body of this embodiment with the front thin plate 2 and the back thin plate 3 shown in FIG.

Next, according to an example of the embodiment according to the second invention shown in the cross-sectional view (e),
A plurality of ribs 4 whose upper surfaces in the shape of a truncated cone are joined between the front thin plate 2 and the back thin plate 3 constituting the gas phase portion 118 in the upper layer portion. The inside of the upper and lower truncated cones of the plurality of ribs 4 whose upper surfaces having the truncated cone shape are joined to each other is a cavity and is configured as a gas phase portion 118. The region excluding the ribs is the gas phase portion 118, forming a hollow plate. A hollow plate in which a plurality of cylindrical ribs are formed between the lower surface thin plate 2 and the lower thin plate 3 of the hollow thin plate 3 is shown. Inside the cylindrical rib, a water retention substrate 6 and a water containing space 5 are formed. The water retaining space 6 is filled in the water containing space 5 excluding the cylindrical rib. The upper thin plate 2 above the lower liquid phase portion and the back thin plate 3 constituting the gas phase portion 118 are firmly adhered to each other using an adhesive, and have a structure in which the liquid phase portion and the gas phase portion 118 are integrated. is there. The means for bonding using an adhesive is an example, and the back thin plate 3 and the front thin plate 2 may be bonded by another bonding method.
The lower figure (f) shows a central layer in which a hollow plate constituting the liquid phase portion 119 is disposed, a hollow plate constituting the gas phase portion 118 disposed above and below it, and a three-layer structure. The side, front, and back sides of the hollow plate are closed using a closing member 10 that is a resin plate and a fixing member 16 of an L-shaped resin rod. The closing member 10 and the fixing member 16 for the L-shaped resin rod, and the back thin plate 3 and the front thin plate 2 are heat-welded with a resin welding rod.
The structure of this embodiment is preferable because it can be inferred that an effect of reducing transmission of radiation emitted from the radioactive substance can be obtained.

FIG. 2 is a diagram in which the water-retaining base material 7 packed in the water-containing space 5 of the hollow plate-shaped body 1 made of a transparent resin is filled. Although it depends on the content of the water-retaining substrate 7, it is preferable to wrap the water-retaining substrate 7 with a woven fabric of paper or resin fiber, a resin film, a rubberized cloth sheet, etc., and to fill the predetermined water-containing space 5, but all of these methods are used. is not. When the water-repellent heat insulating material 42, which is an infinite number of micro air layers formed of mineral fibers or the like, is secured in the gas phase portion 118, the thermal conductivity decreases, which is preferable for shielding the dose of radioactive substance. It is also preferable to partially form a void space (gas phase portion 118) in the water-containing space and provide the void space with any one of a rock wool molded body, a glass wool molded body, and a ceramic fiber molded body having water resistance. In addition, as the rock wool molded body in which the countless fibers filled in the gas phase portion 118 are molded, it is preferable to select a molded body having water repellency by attaching or impregnating the rock wool fiber with a resin.

The material constituting the plate, the hollow plate member, and the ribs is not particularly limited, and examples thereof include a polyolefin resin such as a polyethylene resin and a polypropylene resin, a polyvinyl chloride resin, a polystyrene resin, a polyacryl resin, and ABS. Resin, polyfluorinated resin, polycarbonate resin, polyester resin, polyarylate resin, epoxy resin, silicone resin, polyimide resin, thermoplastic resin such as synthetic rubber, thermosetting resin and photocurable resin, metal Metal, lumber, water-repellent timber, timber, concrete, mineral fiber, mineral powder, thermoplastic resin, thermosetting resin or light-cured resin coated metal or timber, paper, etc., corrosion resistance and molding A thermoplastic resin having excellent heat resistance is preferable, and is preferably formed by extrusion molding, injection molding, foam injection molding, form molding, form compression bonding, or the like. Preferably it is molded.

The front thin plate 2, the back thin plate 3, and the ribs 4 formed of a thermoplastic resin may be transparent, translucent, or opaque. In order to improve weather resistance, light resistance, heat resistance, moldability, and the like, a thermoplastic resin is used. Addition of heat stabilizers, stabilizing aids, skeletons, processing aids, antioxidants, light stabilizers, pigments, antistatic agents, inorganic fillers, plasticizers, etc. that are commonly used when molding resins May be done.
In order to obtain the effect of adsorbing a radioactive substance, it is preferable that the pigment is selected from the group of navy blue, blue, green, black, gray, red, brown, purple, and yellow and is added during the molding of the resin.
Further, a paint may be applied to the surface of the molded plate or the hollow plate-shaped member, or a paint may be applied to the upper surface on which a binder such as an acrylic resin is applied. It is also preferable to apply a fluororesin or a phenol resin.
Further, ultrafine-grained activated carbon having pores matching the size of the radioactive substance, or zeolite, ultrafine-grained activated carbon and zeolite may be added to the resin or paint in order to obtain a radioactive substance adsorption and shielding reduction effect. Preferably, the ultrafine-grained activated carbon and zeolite to be added have a particle size of 980 μm or less for molding.

The plate body formed on the base material for reducing radiation transmission, the front thin plate 2 and the back thin plate 3 forming the hollow plate are provided with reinforcement, weather resistance, light resistance, heat resistance, antistatic, insulation and the like. , Polyethylene resin, polyolefin resin such as polypropylene resin, polyvinyl chloride resin, polystyrene resin, polyacrylic resin, ABS resin, polyfluorinated resin, polycarbonate resin, polyester resin, polyalate resin, polyimide resin Synthetic resin film, rubber sheet, rubber sheet obtained by adding an additive to rubber, resin coated rubber in which resin such as nylon or polyester is formed on the rubber film of the front and back surfaces obtained by adding an additive to rubber Rubber and base cloth (aramid fiber, nylon, polyester, aluminum foil, vinylon ox, glass One of the fibers) is pressed between the rubber-coated cloth sheet and the front and back sides of the rubber coating made of fluorocarbon rubber with carbon added between the resin coating and the rubber coating made of resin such as nylon or polyester. Rubberized cloth sheet made by pressing melted rubber and base cloth (any of aramid fiber, nylon, polyester, polyester fiber, aluminum foil, vinylon ox, glass fiber), and fluororesin film laminated on the surface of rubberized cloth sheet It is preferable that the rubber-coated cloth impermeable sheet is laminated. It is also preferable to laminate a fluoroaluminum impermeable sheet formed by laminating a fluororesin film on the surface of an aluminum foil. In addition, it is preferable that the main surface material is formed by laminating a heat-sealing material having excellent water resistance obtained by pressing a thermoplastic polyurethane elastomer and a polyester base fabric material.
In addition, as a lamination method, any lamination method such as adhesion, adhesion, heat fusion, vapor deposition, and a tucker needle may be selected and laminated. It is also preferable to apply an epoxy resin, an acrylic resin, a fluororesin, or a phenol resin on the upper surface of each of the above-mentioned resin films, aluminum foils, and rubberized cloth sheets. In addition, a picture, a photograph, a character, or the like may be printed on the synthetic resin film for imparting designability or the like.

The thicknesses of the front thin plate 2 and the back thin plate 3 are not particularly limited, but are preferably 0.5 mm to 20 mm, because the thinner the thinner the smaller the mechanical strength and the more easily it is broken when a load is applied. The thickness is preferably 10 mm or more in order to select wood useful for reducing the transmission of dose.

Further, the front thin plate 2 and the back thin plate 3 are a hollow plate-like body which is laminated via a plurality of ribs 4. When the thickness of the hollow plate-like body becomes thin, the area of the water-containing space, the water-containing volume ratio, and the gas phase The area is preferably 3 mm to 100 mm, and more preferably 15 mm to 300 mm, since the area of the part and the void volume ratio are reduced. Then, its weight will vary depending water space ratio, generally preferably ^{0.5kg / m 2 ~25kg / m 2} , more preferably at ^{1.5kg / m 2 ~15kg / m 2} , the thickness It is not limited to pod mass.

The shape of the hollow plate is not particularly limited, and is preferably, for example, a polygon such as a triangle, a square, or a hexagon, a circle, or an ellipse. The size of the hollow plate is 20 to 150 cm × 20 × 600 cm is preferred.

The shape of the rib 4 is not particularly limited, and examples thereof include a columnar shape, a cylindrical shape, a prismatic shape, a square pipe shape, a truncated cone shape, a conical cylindrical shape, a pyramid shape, a ring band shape, and a convex shape. Also, a frusto-conical shape, a conical cylindrical shape, and a convex shape are provided on each of the front thin plate side and the back thin plate side, and a rib shape in which opposed top surfaces are joined, or a substantially hourglass-shaped rib shape integrally formed. And a drum-shaped rib shape.
Alternatively, a rib whose height can be adjusted may be selected.

Further, the shapes of the front thin plate 2 and the back thin plate 3 are not particularly limited. For example, a hollow plate having a large number of ribs 4 between the front thin plate 2 and the back thin plate 3 different from the hollow plate-like body, Alternatively, a corrugated plate, a folded half plate, or the like can be used. In order to form the hollow plate, corrugated plate, and folded half plate into a front thin plate and a back thin plate, a plurality of the ribs 4 are interposed between the front hollow plate and the back hollow plate, and the front and rear hollow plates and the ribs are joined with a bonding agent, a resin. Welding may be selected using a welding rod. Alternatively, a mode using a fixture such as a bolt or a nut may be selected. Alternatively, a hollow plate-like body can be formed by using a fixing tool or the like that welds the front corrugated sheet, the back corrugated sheet, and the plurality of ribs 4 using a bonding agent and a resin welding rod. Further, a fitting portion which enables joining to a partial surface where the front thin plate 2, the back thin plate 3 and the rib 4 are joined is formed in the front thin plate 2, the back thin plate 3 and the rib 4, and the hollow plate-like body is formed. You can also do it.

Further, in this configuration, the water retaining space 7 is filled in the water retaining space. By the function of the water retaining substrate 7, water can be stored in the water retaining space 5. Since it is filled, it has good water retention, is sandwiched between the front thin plate 2 and the back thin plate 3, and is uniformly moistened in a region excluding the plurality of ribs 4. With this water content, the effect of reducing radiation transmission can be exhibited.

Further, in the method of filling the water-retaining base material 7 into the water-containing space 5 of the hollow plate-like body, it is preferable to fill the water-retaining base material 7 itself. It is also possible to sew a polyethylene sheet woven in a shape, or to fill the water-retaining base material 7 in a bag made by heat-welding a part of the periphery to provide the bag in the water-containing space 5. Alternatively, the water retaining substrate 7 may be wrapped with a nonwoven fabric, a polyethylene sheet in which polyethylene fibers are woven in a net shape, or a nonwoven fabric or paper, and provided in the water-containing space 5.

Since the amount of the water-retaining base material 7 filled in the water-containing space 5 affects the weight of the radiation-transmission reducing base material, the completed weight of the radiation-transmission reducing base material and the weight of the water-retaining base material 7 in the water-saturated state are integrated in advance. This can roughly calculate the radiation transmission reduction rate.
In addition, by integrating the water content of the water-retaining base material 7 and the weight of the water-retaining base material 7 before being impregnated with water and the mass of the hollow plate-like body and the fixture, the hollow plate-like body is designed to be used at the pollution site. It is desirable because it is possible to determine the amount of water related to water content and the number of work personnel.

In addition, even if the front thin plate and the back thin plate of the hollow plate-like body constitute a hollow plate in which the front thin plate and the back thin plate made of a thermoplastic resin different from the hollow plate-like body are formed through a plurality of ribs. Good. When this configuration is selected, a hollow plate-like body is formed using bolts, nuts, screw nails, rivets, washers, adhesives, adhesives, tapes, etc., which are fixing members for the front and back plates of the hollow plate and the rib material. Is preferred.

Further, in this configuration, any one of the water-resistant rock wool molded body 42 or the glass wool molded body having the water resistant performance and the ceramic fiber molded body having the water-resistant performance for holding the air in the infinite number of minute voids in the gaseous phase part 118 in a stationary state is provided. Filling is also preferred.
Note that a rock wool molded body made of countless fibers mainly composed of inorganic blast furnace slag filled in the gas phase portion 118 is made of granular cotton or plate having water repellency by adhering or impregnating a resin to the rock wool fibers. It is preferable to select a molded body such as a body, a felt-like body, a rectangular parallelepiped body, a cubic body, and a square rod-like body. When the gas-phase portion 118 is filled with a rock wool molded body 42 as a void holding base material, a glass wool molded body having water resistance, a ceramic fiber molded body, or a ceramic molded body, it is good for holding still air. Furthermore, ultrafine-grained activated carbon or zeolite having a particle size of 980 μm or less is adhered to or impregnated into the rock wool molded body 42, the glass wool molded body having water resistance, the ceramic fiber molded body, or the ceramic molded body to reduce the effect of permeating radioactive substances. It is also preferred to increase.

It is to be noted that a water impermeable sheet 76 or a film that does not allow moisture to permeate is provided between the water-retaining base material 6 filled in the water-containing space 5 and the gas phase portion, and the water-containing material of the water-retaining base material evaporates in the gas phase portion region. It is also preferable to prevent Alternatively, a hollow plate-like body may be formed by selecting a form in which the void holding base material is hermetically sealed or filled in a bag with a water-blocking sheet 76 or a film material that does not allow moisture to permeate.
<Second embodiment>

In this embodiment, in the radiation transmission reducing component base material of the first invention, the periphery of the water-containing space is closed or partially left closed, and the surface thin plate covers the entire water-containing space. This corresponds to a specific example of a configuration in which a form in which one or more communicating through holes are formed may be included.
This embodiment will be described with reference to the drawings.
In FIG. 3, one end surface of a hollow plate made of a transparent polycarbonate resin is formed as a closed end surface 9, and one end surface is used as a water inlet. A lid 8 is attached to the water inlet. In this hollow plate-shaped body, the front thin plate 2 and the back thin plate 3 are installed substantially in parallel, and are stacked via a plurality of plate-shaped ribs 4. A water-containing space 5 is formed by being surrounded by the front thin plate 2, the back thin plate 3, and the rib 4. The figure shows that a part of the water-containing space 5 is filled with the water-retaining material 6. In addition, the water inlet is filled with water after the water-retaining material 6 is filled with water. By providing the member 10, the water-containing space 5 is sealed, so that water retention is good.

The water retention substrate 7 is a sheet in which fibers are impregnated with a superabsorbent polymer. By filling this sheet into the water-containing space 5 and injecting water, the superabsorbent polymer impregnated in the sheet of the water-retaining base material 7 quickly absorbs water and permeates the entire sheet. The amount of water absorption differs depending on the nature of the water to be injected and the amount of the superabsorbent polymer contained in the sheet. However, approximately 8 to 12 times the weight of the sheet containing the superabsorbent polymer is absorbed by the sheet. Therefore, the water injection work becomes easy.

Further, the water-retaining substrate 7 to be used may select the superabsorbent polymer itself and fill the water-containing space 5. A plurality of non-woven bags having water permeability, or bags made of paper or other packaging materials filled with a superabsorbent polymer material may be provided in the water-containing space 5 in a plurality of forms. It is more desirable to use a material made so that the superabsorbent polymer material does not leak.

FIG. 4A is a perspective view made of an opaque resin material. The closed end face 9 on the peripheral edge 3 side of the hollow plate-shaped body 1 shown is all closed, and the water inlet described in FIG. In the example of FIG. 4, a through hole 12 is opened in a part of the closing member 8. The through holes 12 serve as water injection ports after the hollow plate-shaped body 1 is sealed by the closing member. The diameter of the through hole 12 is not limited, but a diameter of 2 cm to 8 cm is appropriate.
When water is injected from the water inlet, the water penetrates into the water retaining base material 6 through the closing member 8 shown in the cross section in the following figure.

In addition, the lower surface shown by the dotted line between (a) and (a) in the figure is a cross-sectional perspective view of (b). In addition, in this cross-sectional perspective view (b), the water-retaining substrate 6 is not filled in all of the water-containing spaces, but this figure is for facilitating understanding of the elements necessary for the configuration. Is preferably filled with an amount corresponding to the capacity of the water-containing space 5, and more preferably, the water-containing space 5 is filled with the water retention substrate 6 without any gap. The lower drawing (c) is a cross-sectional view showing the lower surface indicated by a dotted line between (b) and (b) in the upper drawing (a).

Further, according to the configuration of FIG. 5, since the peripheral portion of the water-containing space 5 is closed, the water in the water-retaining base material 6 can be stored so that the static state of the water is stabilized. Further, the water injected into the water-retaining base material 6 in a state where the band-shaped through-holes 11 and the through-holes 12 are closed by the closing member 10 shown in the upper part of FIG. Since there is almost no loss, the effect of reducing radiation transmission can be stably exhibited.

In addition, as shown in FIG. 5 (a), the through-hole 12 and the band-like through-hole 11 intended to communicate with the water-containing space 5 are formed in the hollow plate-like surface plate 2 filled with the water-retaining base material 6. To form a structure in which water injection penetrates into the water retention base material 6. The lower drawing (b) is a sectional view showing the lower surface indicated by a dotted line between (a) and (a) shown in the upper drawing (a).

In addition, all of the upper portions except the back thin plate 2 from the end of the hollow plate-like body in the longitudinal direction of the rib to both ends perpendicular to the longitudinal direction of the rib from the end of the hollow plate-like body in the longitudinal direction of the rib are inverted triangular. Then, the lower end of the inverted triangular metal rod is heated by applying heat to the inverted triangular metal rod to melt the lower end of the inverted triangular plate from the surface of the surface plate 2 at the end of the hollow plate. FIG. 9 is a view in which the end surface is bent by bending the part surface in the direction of the through hole 12 and welding the facing surfaces. It is preferable to close the end portion by this closing method, since the end portion is firmly closed and the strength of the water-containing space 5 increases. However, it is recommended that the filling of the water-retaining substrate 6 be performed before closing, but the closing method of this end is shown as an example method and is not limited to this.

Further, the plate body, the member of the hollow plate-shaped body is not particularly limited,
For example, a polyolefin resin such as a polyethylene resin and a polypropylene resin, a polyvinyl chloride resin, a polystyrene resin, a polyacrylic resin, an ABS resin, a polyfluorinated resin, and a polycarbonate resin also specified in the first embodiment. Resin, polyester resin, polyarylate resin, epoxy resin, silicon resin, polyimide resin, thermoplastic resin such as synthetic rubber, thermosetting resin and photocurable resin, metal, timber, thermoplastic resin, heat Metal coated with a curable resin or a photocurable resin, plated metal, water-repellent timber, timber, paper or concrete, etc., and a thermoplastic resin excellent in corrosion resistance and moldability are preferable. Molded by molding methods such as molding, injection molding, mold molding, mold compression molding, compression molding, foam injection molding, etc. Masui.

The front thin plate 2, the back thin plate 3, and the ribs 4 formed of a thermoplastic resin may be transparent, translucent, or opaque. In order to improve weather resistance, light resistance, heat resistance, moldability, and the like, a thermoplastic resin is used. Addition of heat stabilizers, stabilizing aids, skeletons, processing aids, antioxidants, light stabilizers, pigments, antistatic agents, inorganic fillers, plasticizers, etc. that are commonly used when molding resins May be done. In order to obtain the effect of adsorbing a radioactive substance, it is preferable that the pigment is selected from the group of navy blue, blue, green, black, gray, red, brown, purple, and yellow and is added during the molding of the resin.
Further, a paint may be applied to the surface of the molded plate or the hollow plate-shaped member, or a paint may be applied to the upper surface on which a binder such as an acrylic resin is applied. It is also preferable to apply a fluororesin or a phenol resin.

Radiation transmission reduction component The plate, the hollow plate, and the surface thin plate 2 and the back thin plate 3 that form the hollow plate shape are made of a base material, a hollow sheet, and a back sheet 3. Polyolefin resin such as polyethylene resin and polypropylene resin, polyvinyl chloride resin, polystyrene resin, polyacrylic resin, ABS resin, polyfluorinated resin, polycarbonate resin, polyester resin, polyalate Resin, polyimide resin synthetic resin film, aluminum foil or rubber sheet, rubber sheet made by adding additives to rubber, nylon or polyester on rubber rubber film made by adding additives to rubber on front and back sides Rubber and base cloth (aramid fiber, nylon, polyester, aluminum foil, vinylo) Ox or glass fiber) and a rubber-coated cloth sheet made by press-bonding with Ox or glass fiber. Rubberized cloth sheet made of rubber and base cloth (any of aramid fiber, nylon, polyester, polyester fiber, aluminum foil, vinylon ox, glass fiber) melted between them, fluororesin on the surface of rubberized cloth sheet It is preferable that a rubber-coated cloth water-blocking sheet obtained by laminating a film is laminated. It is also preferable to laminate a fluoroaluminum impermeable sheet formed by laminating a fluororesin film on the surface of an aluminum foil. In addition, it is preferable that the main surface material is formed by laminating a heat-sealing material having excellent water resistance formed by pressing a thermoplastic polyurethane elastomer and a polyester base fabric material. As a lamination method, a lamination method such as adhesion, adhesion, heat fusion, vapor deposition, or a sticking method such as a tucker needle may be selected. It is also preferable to apply an epoxy resin, an acrylic resin, a fluororesin, or a phenol resin on the upper surface of each resin or the aluminum foil described above. In addition, a picture, a photograph, a character, or the like may be printed on the synthetic resin film for imparting designability or the like.

Further, in this structure, it is desirable to select the molding method described above, in which the peripheral portion of the water-containing space 5 is closed to form a structure that blocks movement of the stored water. As a method of closing the end, any known method may be adopted. However, the plate-like body made of the material constituting the front thin plate 2, the back thin plate 3, and the ribs 4 of the radiation transmission reducing constituent base material is closed using a waterproof airtight tape, an aluminum foil tape, a water shielding sheet, or the like, or It is preferably closed with a concave or convex rubber, cement, welding resin rod, anticorrosion metal plate, concave anticorrosion metal plate or the like.

Moreover, although the front thin plate 2 and the back thin plate 3 are a hollow plate-like body laminated through a plurality of ribs 4, when the thickness of the hollow plate-like body is thin, the area of the water-containing space 5 and the water content volume ratio are small. Therefore, the thickness is preferably from 3 mm to 100 mm, more preferably from 15 mm to 200 mm. Then, its weight varies depending on the amount of resin and additives amount required hollow plate-like body shaped generally preferably ^{0.5kg / m 2 ~25kg / m 2} , more preferably 1.5kg ^/ m 2 ~15kg / M ² .

The shape of the rib 4 according to this configuration is not particularly limited, and may be, for example, a plate, a column, a cylinder, a prism, a prism, a truncated cone, a truncated cone, a pyramid, or an upper surface of two truncated cones. Are joined, two cone-shaped top surfaces are joined, and an hourglass shape. An embodiment in which a cylindrical rib is formed is shown in the lower diagram (b) of FIG.

<Third embodiment>
This embodiment is based on the second invention, and comprises a hollow plate-like body in which a back thin plate and a front thin plate having a large number of through holes are laminated via a large number of ribs. The ribs include a plurality of plate-like ribs arranged substantially parallel to each other, at least one end of the water-containing space located at a longitudinal end of the plurality of plate-like ribs is closed, Corresponds to a specific example of a configuration characterized by including a band-shaped through-hole formed so as to intersect with the plurality of plate-shaped ribs.

This embodiment will be described with reference to the drawings.
In the perspective view shown in the upper diagram (a) of FIG. 6 (see the lower diagram (b) for the inside), the end faces are closed by the ribs 4 located on the left and right end faces of the hollow plate-like body 1. Further, a state in which both end surfaces in the longitudinal direction of the plate-shaped rib 4 are closed as the closed end surface 9 is shown. However, inside the hollow plate-like body, there are water-containing spaces 5 between the plurality of plate-like ribs and the water-retaining base material 6 is filled. This closing method is the closing welding 18 by the thermal processing described in the above embodiment. Further, a band-shaped through-hole 11 is formed in the surface thin plate 2 shown on the upper surface of the perspective view.

Since the band-shaped through-holes 11 formed so as to intersect with the plurality of plate-shaped ribs 4 are formed, it is easy to inject water, and the rain falls from the plurality of planar-shaped band-shaped through-holes 11. Easily penetrates into the water retention base material 6 housed inside the hollow plate-shaped body 1, so that when performing water injection work in a rainy environment, the amount of water supply depends on the amount of rainfall, depending on the amount of rainfall. Water resources will be used effectively because it is less.

Further, the water contained in the water-retaining base material 6 can maintain a static state because the peripheral portion of the hollow plate-shaped body 1 is closed, and can maintain the water content. In addition, the leakage of water from the belt-shaped through-hole 11 occurs at the time of rainfall or when the amount of water injected exceeds the water content of the water retention base material 6, but does not affect the maximum water content of the water retention base material 6. Further, even if the hollow plate-like body 1 is installed on a flat surface or an inclined surface in a stationary state, the water hardly leaks from the through-hole 11 due to factors other than the above, so that the radiation transmission reducing effect is permanent.

The width of the band-shaped through-hole 11 is not particularly limited, but when the width is reduced, the water flow is affected. On the other hand, if the width is too large, the water content is affected by the environment outside the hollow plate-like body, and the water content decreases. Therefore, the width may be 1 mm to 15 mm, and preferably 1 mm to 8 mm. The interval between the band-shaped through holes 11 may be 10 cm or more. However, even if the interval is smaller than this, there is no effect on water injection.
The cross-sectional shape of the band-shaped through-hole 11 is not particularly limited, and examples thereof include a rectangular shape, a U shape, a V shape, and a dovetail shape. The shape of the band-shaped through-hole 11 is not particularly limited. No.

6 (b) shows a plurality of plate-like members between the front thin plate 2 and the back thin plate 3 in which the end surfaces are closed by the ribs 4 located on the left and right end surfaces of the hollow plate-like body 1. Both end faces in the longitudinal direction of the rib 4 are perspective views on the premise that they are closed by the closing member 10, and the water-retaining base material 6 fills the water-containing space 5 between the plate-shaped ribs 4. Have been. This figure is also a perspective view according to the second embodiment.

The material constituting the front thin plate 2, the back thin plate 3, and the ribs 4 is not particularly limited as long as it does not hinder plant growth, and may be selected from the materials described in the second embodiment. Good. The method described in the first and second embodiments may be applied to the production of the hollow plate and the closing of the end.

<Fourth embodiment>
In this embodiment, the plurality of ribs include four or more plate-like ribs arranged so as to be alternately inclined in opposite directions, and the water-containing ribs located at longitudinal ends of the plurality of plate-like ribs are provided. Radiation transmission reduction according to the second invention, wherein at least one end of the space for use is closed, and the plurality of through holes include a band-shaped through hole formed so as to intersect with the plurality of plate-shaped ribs. This corresponds to a specific example of the constituent base material.

This embodiment will be described with reference to the drawings.
The upper diagram (a) and the middle diagram (b) in FIG. 7 are cross-sectional views of the hollow plate-like body 1 in which the plate-like ribs 4 are arranged so as to be alternately inclined in opposite directions. An inclined rib 4 is arranged between the second thin plate 2 and the back thin plate 3, and a space between the rib 4 and the rib 4 becomes a water-containing space 5. The water-containing space 5 is filled with a water-retaining base material 6. The lower figure (c) shows that a plate-like rib 4 is formed substantially horizontally between the front thin plate 2 and the back thin plate 3, and a plurality of plate-like ribs 4 different from the plate-like rib 4 formed in the horizontal direction. It is sectional drawing of the hollow plate-shaped body 1 arranged.

In this radiation transmission reducing constituent base material, the plate-like ribs 4 are arranged so as to be alternately inclined in the opposite direction, or the plate-like ribs 4 are formed almost horizontally between the front thin plate 2 and the back thin plate 3. Since a plurality of plate-like ribs 4 different from the plate-like ribs 4 formed in the horizontal direction are arranged, it has an excellent shearing force that does not cause cross section breakage or displacement of the hollow plate-like body due to external force. I have.

<Fifth embodiment>
This embodiment corresponds to a specific example of a configuration in which a plurality of ribs include hollow ribs, and the water-containing space also includes an internal space of the plurality of through holes. According to this configuration, the water content volume ratio increases, and the water content increases and the weight increases due to the increase in the water retention substrate contained in the hollow plate-like body. Therefore, it is suitable for increasing the transmission reduction rate of radiation.

This embodiment will be described with reference to the drawings.
In the example shown in FIG. 8, the peripheral edges of the front thin plate 2 and the rear thin plate 3 are all formed as closed end faces 9 except for the through holes 12 shown in the peripheral edge. In this example, a plurality of through-holes 12 are formed in the surface thin plate 2 at arbitrary positions. I have.
Further, a cross-sectional structure taken along a dotted line connecting between (a) and (a) shown in the figure is shown as a cross-sectional view of the hollow plate-shaped body 1 in the upper diagram (a) of FIG. In addition, the figure (b) immediately below the upper figure shows the hollow plate-like body 1 having a plurality of rib shapes formed by forming the through holes 12 in the cylindrical ribs 14. Further, FIG. 3C illustrates two ribs, a through-hole rib 14 and a cylindrical rib 14 having a concave notch formed on the upper surface of the rib.

<Sixth Embodiment>
This embodiment corresponds to a specific example of the radiation transmission reducing component base material according to the fifth aspect of the present invention, in which a hole for communicating the inside and the outside of the rib is formed in the hollow rib.
This embodiment will be described with reference to the drawings.
The upper diagram (a) in FIG. 9 shows that the cylindrical rib 4 is formed, and the space between the front thin plate 2 and the back thin plate 3 inside the end closing surface 9 and the inside of the rib 4 are filled with the water retention substrate 6. 1 shows a hollow plate-shaped body 1. FIG. 9B shows the hollow plate-shaped body 1 having a plurality of perforated ribs 14. Both ends of the hollow plate-shaped body 1 are closed by the end closing surfaces 9, and the inside thereof is closed. The hollow plate-like body 1 filled with the water retention base material 6 is shown by a cross-sectional view. 9 (c) shows two different through-hole ribs 14, the left figure shows the through-hole 12, and the right figure shows a cylindrical rib 14 having a concave notch formed on the upper surface. An example is shown. As described above, in addition to the rib shape shown, the through-hole 12 and the concave notch as described above were formed between the upper and lower surfaces and the upper and lower surfaces of the rib in the ring-shaped rib, the honeycomb-shaped rib, and the lattice-shaped rib. The ribs may be configured as the ribs of the hollow plate 1.

Since the hollow ribs are filled with the water retention base material 6 to be hydrated, the hydrated water is surrounded by the side walls of the ribs, so that the water is kept in a static state without being affected by the external force acting on the hollow plate-like body 1. There is no change in the amount of water, so that the amount of water and the weight of the hollow plate-shaped body 1 are stabilized. The stable weight reduces the effect of reducing the transmission of radiation, and the load effect of the hollow plate 1 increases the effect of fixing the radioactive material. Suitable for.

<Seventh embodiment>
The present embodiment is the radiation transmission reducing component base material according to any one of the second to sixth inventions, wherein the one or more through-holes formed in the surface thin plate have at least one plantation having a diameter of 30 mm to 180 mm. This corresponds to a specific example of a configuration having a feature that a hole is partially included.
The present embodiment having this feature will be described with reference to the drawings.

FIG. 11 is a perspective view showing an example of this embodiment. First, a closing member 10 is erected on the periphery of the front thin plate 2 and the back thin plate 3 to close the periphery. The two front closures are shown removed to make it easier to see the spatial elements inside the hollow plate. Cylindrical ribs 4 are scattered on the upper surface of the back thin plate 3, the periphery of which is a water-containing space 5, and the belt-like through plate 2 shown above the water-containing space 5 and the ribs 4. A hole 11 is formed, and the band-shaped through hole 11 includes a planting hole 13.

In this figure, the water-retaining base material is not shown, but the water-containing space 5 is filled with the water-retaining material, and water is injected from the planting holes and the thirteenth band-shaped through-holes 11, so that the hollow plate-like body is formed. The water will be stored inside. Also, this figure shows a state in which the hollow plate-shaped body is placed horizontally, but a hollow plate-shaped body of this form, which is a radiation transmission reduction constituent base material, is erected, and a plant is placed in the planting hole 13. After planting, the greening of the wall structure is completed. In the case of using such a green wall, it is recommended to manufacture a hollow plate having a sufficient thickness to secure the water content necessary for reducing radiation transmission and the water content necessary for plant growth. In addition, a plant species can be selected according to the size of the planting hole 13, but tree planting is possible if the planting hole 13 has a diameter of 15 cm.

A water-retaining base material to be filled in the water-containing space inside the hollow plate-like body is recommended because rock wool is suitable for growing plants. Also, in order to separate the water-containing area required for radiation transmission reduction and the water-containing area necessary for plant growth, a hollow rib formed by forming a through hole or a notch in the hollow plate-like body, For example, it is desirable to make a region for planting a plant in a region inside the hollow rib.

<Eighth Embodiment>
In the present embodiment, the radiation transmission reducing constituent base material, a plurality of water shields having a main surface, a fixing member for fixing the plurality of water shields such that their main surfaces face each other, This corresponds to a specific example of a configuration in which a water retention substrate sandwiched between water impermeable bodies and a water pipe or a hollow plate may be provided in a part of the water retention substrate.
This embodiment will be described with reference to the drawings.

The upper part (a) of FIG. 12 shows that the water retaining base 6 is provided between the water shielding plate 19 and the water shielding plate 19 (or 22), and the two left and right water shielding plates and the water retaining substrate 6 are integrated. It is a perspective view of an example of a radiation transmission reduction constituent base material in which a through-hole 12 for inserting a bolt screw, which is a fixing member 16 for the purpose of being made, is opened. The lower drawing (b) is a cross-sectional view showing a part where the upper drawing (a) is partially fixed. In the example shown in the figure, the water-retaining base material 6 is sandwiched between the left and right water-impervious plates 19 and 22, and the bolts and nuts as the fixing members 16 are used. It is a fixed specification that keeps the interval at a constant interval. In this fixing method, it is preferable to integrate at least four places using bolts and nuts as described above, though it depends on the shapes of the water shield plates 19 and 22.

The water shield plate 22 shown on the right side of the figure uses a hollow culvert plate 22 having a water shield function on the back thin plate as a water shield plate. According to this configuration, the total weight of the water-retaining base material 6 made of rock wool having a thickness of 7 cm and the water-containing saturated weight of 100 kg / m ² combined with the weight of the ^two water-impervious plates 10 kg / m ² , It is estimated that the transmission reduction rate can be reduced to about 50%. Further, when the thickness of the water-retaining base material 6 is set to 16 cm, the total weight becomes 240 kg / m ² and the radiation transmission reduction rate is reduced to about 80%. Therefore, it is more useful.
According to this specification, it is desirable to fix with a bolt, a nut, and a washer as a fixing member matching the thickness of the water retention base material 6 and the water shield plate 22, but the fixing member and the fixing method may be any fixing member and fixing means. It is possible to make the said structure with.

Further, a dry rock wool which is a water-retaining material sandwiched between water-shielding bodies 22 having opposite main surfaces having a width of 1680 mm and a width of 1000 mm, opposite main surfaces having a width of 1000 mm and a width of 750 mm, and opposite main surfaces having a width of 750 mm and a width of 1680 mm. It is also useful for shielding a high-concentration dose because a radiation-transmission reducing base material having a configuration of 450 kg of granular cotton and a saturated weight of 2600 kg of water can be made. In order to withstand the water-impregnated saturated weight of 2600 kg pressure, the connecting surface of each main surface is selected to use many connecting members such as a strong I-shaped joint and a right-angled hollow L-shaped joint so that the water shield 22 can withstand the pressure. Is preferred.

The upper diagram (a) in FIG. 13 shows the end portions of the peripheral edges of the left and right water shielding plates 19 and 22 by sandwiching the water retaining substrate 6 between the water shielding plates 19 and 22 and maintaining the formation using the fixing tool 16. The outer thin plate between the ribs at the bent portion of the hollow plate 21 as a single water-impervious plate is cut so that the inner thin plate at the cut portion is bent substantially at a right angle so as to surround the frame. FIG. 3 is a perspective view of an example before attaching the shaped water-impervious plate frame 10 to a peripheral edge formed by sandwiching the water-retaining base material 6 between the water-impervious plates 19 and 22.
The L-shape for fixing the impermeable board frame 10 is shown in the figure. It is preferable to use rivets or screws and nuts for joining the L-shape to the impermeable board frame.
The water blocking plates 19 and 22 are provided with through holes 12 for water injection. The through-hole 12 is formed by cutting the front thin plate, the back thin plate, and the rib of the hollow culvert plate 22 into a circular shape with an electric tool. The cut-out hollowed-out hollow culvert plate can be fitted into the through-hole after water injection and the through-hole can be closed, thereby returning the original water-impervious plate to its original form. The means are preferred. The number of the through holes may be plural in consideration of the water injection time.

In addition, each of the methods of fixing the water shielding plate is performed by using a binding band made of resin, metal, or fiber woven material, for example, in addition to the bolts and nuts and washers of the fixing member 16 shown in the drawing. What is necessary is just to manufacture the structure which consists of a structure.
In this configuration, since the entire periphery of the water retention base material 6 is impervious to the impervious plates 10 and 19, there is no movement of water, and the initial water injection amount is permanently maintained, so that the radiation transmission reduction rate is more stable. become. Moreover, it is good also as comprising several water-impervious plates 22 in multiple layers.

The lower diagram (b) of FIG. 13 shows the water shield plates 19a and 19b having a different shape from the water shield plate having the smooth surface shape shown in FIGS. 12 and 13 (a). . The water shielding plates 19a and 19b have a convex surface 97 in which the surfaces of the water shielding plates 19a and 19b are formed in a convex shape. The position having the plurality of convex shapes is the checkered convex surface 97 (see the right diagram) shown in the right-hand diagram of FIG. It is also useful to use a structure in which a water retention base material is provided in an area around the convex portion of the water shield plate, and the convex portions 97 are vertically stacked so that the upper surfaces of the convex portions 97 face each other. In addition, the side wall of the plate having a plurality of shapes of the convex portion 97 is provided with a side wall standing up to the thickness of the convex portion 97, and the water-retaining base material is provided in the water-containing space 5 between the two integrally formed watertight box-shaped plates. A structure in which the stacked structures sandwiching 6 are integrated by the fixing member 16 is also useful for radiation shielding, and the shape of the convex portion 97 may be formed with irregularities.

FIG. 13C shows the shielding of the radioactive contaminants 71 accumulated at the bottom of the side groove 113 where the square 114 and the side groove 113 are connected as shown in the perspective view of FIG. It is the perspective view and sectional drawing (g) of the radiation transmission reduction | restoration structure base material which has the water flow function of the waste water of FIG. All of the water shielding plates 19 shown in the perspective views are PVC resin plates. The water retention base material 6 is filled by being surrounded by the water shield plate 19. A water pipe 108 is provided in a part of the water retention base material 6. The water pipe 108 is a vinyl chloride pipe. In addition, a through hole 12 that matches the size of the end face of the water pipe 108 is formed in the water shield plate 19 shown below, which is different from the perspective view, at substantially the same position as the end face of the water pipe 108. The impermeable plate 19 provided with the through hole is fixed to the end face of the water pipe 108 by using the screw of the fixing member 16. On the back side not shown in the perspective view, a water shield 19 having a through hole 12 of a size matching the end face of the same water pipe 108 is fixed using a screw of the fixing member 16.

The water blocking plate 19 on the upper surface of the perspective view is provided with a through hole 12 of a water inlet 25 for water injection. The through-hole 12 is formed by cutting a water-impervious plate 19 made of a PVC resin into a circular shape with an electric tool. The cut-out hollow portion of the circular plate can be fitted into the through hole after water injection and can close the through hole, thereby returning to the original shape of the water shield plate. preferable. The number of the through holes may be plural in consideration of the water injection time.

Further, the size of the radiation transmission reducing component base material having the function of shielding the radioactive substance contaminant 71 existing near the bottom of the side groove and having the function of passing water may be a size matching the inner dimension of the side groove. In addition, as an example, the water shielding plate 19 is formed of a green resin in a side groove having a width of 45 cm, a width of 40 cm, a height of 65 cm, and a length of 102 cm. Nine vinyl chloride pipes having an outer diameter of 114 mm and a length of 100 cm are arranged in nine rows in three rows of three rows, and a water retention base material obtained by mixing rock wool and activated carbon in an area outside the vinyl chloride pipes. The reduction rate of the transmission of radiation of the filled structure is as follows. The thickness of the water retention base material filled in the upper surface area of the vinyl chloride pipe becomes 30 cm, the saturated load of water injected into the water retention base material becomes 225 kg, and the radiation This is useful because it is estimated that the transmission reduction rate can be about 75%. Further, since the saturated load of water 225 kg including the load of the water retention base material is a static load with no movement, it is also useful for fixing the radioactive substance existing between the outer bottom surface and the side groove of the radiation transmission reduction constituent base material. preferable. Further, a material in which any of blue, green, blue, black, gray, and red pigments is added to the material of the water shielding plate 19 constituting the radiation transmission reducing constituent base material is more preferable for shielding. Since the weight of the radiation transmission reducing component base material before being hydrated is as light as about 45 kg, it is useful because it can be installed by one to three workers in the gutter.
In addition, the number of water pipes may be determined in consideration of the number that does not impede the drainage function of the gutter as much as possible and the outer diameter of the PVC pipe. As long as the outer diameter of the vinyl chloride tube is large, one tube may be used. In addition, it is preferable to calculate the thickness and the filling amount of the water retention base material 6 in consideration of the value of the dose emitted by the radioactive substance so as to be most effective in reducing the transmission of radiation. Further, a water-retaining substrate 6 in which activated carbon, resin pellets, and powder rubber are mixed is useful.

The cross-sectional view shown in FIG. (D) is a diagram of an example of the radiation transmission reducing constituent base material. According to this configuration, the water-blocking plate 19 is a water-retentive base material having a hollow plate 21 having a plurality of ribs provided between a front thin plate and a back thin plate as shown in the top, bottom, side, front, and rear. 19 and a water pipe 108 (a horizontal row of vinyl chloride pipes). In addition, the water blocking plate 19 may not be provided on both longitudinal end surfaces of the water pipe 108. However, it is preferable that each water pipe 108 is fixed to the water shield plate 19 by using a fixing tool such as an adhesive tape, heat welding, a screw, a bolt, and a nut. A water inlet 25 for water injection is shown on the upper surface. The water injection port 25 is a square water injection port 25 in which the front thin plate, the back thin plate, and a part of the rib of the hollow plate 21 that is the water shielding plate 19 are not cut. After water is injected into the water retention substrate, the hollow plate 21 having the water inlet 25 may be fitted into the water inlet and the water inlet 25 may be closed.

FIG. 5E shows the water-impervious plate 19 having the upper surface, the bottom surface, the side surface, and the front surface (drainage channel) in the same manner as FIG. 96, a rear surface (excluding the drainage channel 96 region), left and right side walls of the drainage channel 96 shown in the figure, and a middle plate on the side wall. Further, in the cross-sectional view shown, the water retention base material 6 is filled between the upper surface water shield plate 19 and the middle water barrier plate 19. Further, the water retaining base material 6 is filled from the side wall (water shield plate 19 / hollow plate 21) of the drainage channel 96 to the outer region and the space between the water shield plate 19 on the side and bottom and the middle water shield plate 19. . In addition, a water inlet 25 for injecting water into the water retention base material 6 is provided in the water shield plate 19 on the upper surface. When water is injected from the water inlet, the water is immersed into the water retention base 6 below from the water inlet provided in the water shield plate 19 provided at the middle stage. According to this configuration, even if a PVC pipe is not provided, it is preferable because there is a function of passing water to the rear surface from the front surface of the radiation transmission reducing component base material. Also, fixing nuts 16 nuts for attaching the front and rear water shields to the top, bottom, and side water shields are shown.

In addition, the outer shape of the present embodiment is a circular pipe shape, a square pipe shape, a square rod shape, a round bar shape, a square pillar, a cylindrical shape, a pyramid shape, a trapezoidal shape, a rectangular parallelepiped, a cube, an ellipse, a hemisphere, a sphere, and the like. It may be formed.
This embodiment is also useful for agricultural irrigation canals other than gutters.

Further, the material of the water shield plate having this configuration is not particularly limited, and it is preferable to select the material described in [0111] to [0124] described in the embodiment of the first invention. The molding method is preferably a thermoplastic resin, and is preferably molded by extrusion molding, injection molding, or the like, but is not limited thereto. Also, precast concrete, resin concrete, concrete plate, reinforced concrete, and metal plate may be configured to the specifications of the impermeable plate. In addition, it is also preferable that the concrete shaping | molding method forms a water-impervious board by formwork molding, formwork compaction molding, and formwork compression molding. In addition, it is formed in a box shape made of at least one of a polypropylene resin or a polyethylene resin having a durability that does not deteriorate by rust or corrosion and is different from a water-shielding plate made of a radiation transmission reducing base material (water-retaining base material filling). It is also preferable to select and use a container having a region and a water passage.

<Ninth embodiment>
In the radiation transmission reducing component base material of the ninth invention in FIG. 9B, a plate formed of a thermoplastic resin or a back thin plate 3 and a front thin plate 2 are interposed through a plurality of plate-shaped ribs 4. The hollow plate-like body 22 in which the plate-like bodies are installed substantially in parallel and the drainage channel 96 is formed, or the back thin plate 3 and the front thin plate 2 in which a plurality of through holes are formed. However, the rib is a hollow plate-shaped body 22 laminated via a plurality of ribs, the rib is the plate-shaped body 4, a plurality of plate-shaped bodies are installed substantially in parallel, a drainage channel 96 is formed, The through-hole is a strip-shaped through-hole 11, and is a radiation transmission reduction constituent base material characterized by having a culvert structure in which a plurality of strip-shaped through-holes 11 are formed so as to cross the plate-like body.

According to this structure, in order to manufacture the plate body and the culvert plate structure, it is preferable to manufacture the plate body in accordance with the description of the material constituting the hollow plate-like member specified in the first embodiment. Further, since a specific example of opening the band-shaped through-hole is specified in the third embodiment of the present invention, it is preferable that the embodiment is performed in accordance with the reference. In order to enhance the mechanical strength and the radiation transmission reduction effect of the plate body and the culvert plate according to the ninth embodiment of the present invention, the plate body, the front thin plate 2, the back thin plate 3, and the plurality of plate-like ribs 4 are required. It is good to configure the thickness to be thick, and when the plate is manufactured by resin molding and when the material constituting the hollow plate-shaped member is manufactured by resin molding, adding an antistatic agent and a pigment has an effect of reducing radiation transmission. It is preferable because it can be estimated that the temperature will be further increased. The color of the pigment to be added is preferably dark blue, blue, green, black, gray, brown, purple, or yellow.

That is, the color of a molded product manufactured in general resin molding is, for example, a molded product made of polypropylene resin, and the finished product is translucent. The translucent plate body formed by molding a polypropylene resin and the culvert plate are preferable for obtaining a radiation transmission reducing effect, but a shielding effect of the translucent resin molded plate body and an antistatic agent, a navy blue or green pigment. It can be predicted that the radiation transmission reduction ratio with the resin molded product added and molded is different even if the mass of the resin used for molding is the same. Of course, a plate molded by adding an antistatic agent and a pigment, a foam molded plate, a hollow plate and a hollow culvert plate can be expected to have a higher radiation transmission reduction rate, and thus are useful. The principle that the antistatic agent is effective in shielding radioactive substances is considered to suppress electromagnetic waves of radiation. It is also conceivable that the density of the translucent polypropylene resin suppresses electromagnetic waves and heat of radiation. Further, a translucent polypropylene resin is preferable because it does not require the addition of a pigment and is inexpensive. Note that, in addition to the thermoplastic resin, a specification in which a thermosetting resin, an FRP resin, or the like is replaced with a thermoplastic resin may be selected. Further, although it depends on the mass and thickness of the plate, the hollow plate, and the hollow culvert plate, it is preferable to use a plurality of them, since the shielding effect is remarkably exhibited.
In addition, the principle that the pigment adsorbs the radioactive substance is that, for example, if the size of the pore of the pigment manufactured from mineral or ceramic is approximately the same as the size of the radioactive substance, the radioactive substance is adsorbed on the pore of the pigment. Can be inferred. In addition, since the density and shape of the molding resin can be assumed to be a factor in reducing the transmission of radioactive substances, the hollow plate is useful as a lightweight base material for reducing radiation transmission because the drainage channel is an air layer.

The plate body formed on the base material for reducing radiation transmission, the front thin plate 2 forming the hollow plate, and the back thin plate 3 are provided for reinforcement, weather resistance, light resistance, heat resistance, electric resistance, insulation, etc. , Polyethylene resin, polyolefin resin such as polypropylene resin, polyvinyl chloride resin, polystyrene resin, polyacrylic resin, ABS resin, polyfluorinated resin, polycarbonate resin, polyester resin, polyalate resin, polyimide A synthetic resin film of a system resin or an aluminum foil may be laminated by selecting a bonding method such as adhesion, adhesion, vapor deposition, heat fusion, and tacker needle. It is also preferable to apply an epoxy resin, an acrylic resin, a fluororesin, or a phenol resin on the upper surface of each resin or the aluminum foil described above. In addition, a picture, a photograph, a character, or the like may be printed on the synthetic resin film for imparting designability or the like. In addition, you may choose to laminate rubber-coated cloth sheets other than the above specified in the description of the material constituting the hollow plate-shaped member of the first invention. By laminating such a material, insulation and heat resistance effects are increased, so that it is preferable to reduce radiation transmission.

The front thin plate 2, the back thin plate 3, and the ribs 4 formed of a thermoplastic resin may be transparent, translucent, or opaque. In order to improve weather resistance, light resistance, heat resistance, moldability, and the like, a thermoplastic resin is used. Addition of heat stabilizers, stabilizing aids, skeletons, processing aids, antioxidants, light stabilizers, pigments, antistatic agents, inorganic fillers, plasticizers, etc. that are commonly used when molding resins May be done.
In order to obtain the effect of adsorbing a radioactive substance, it is preferable that the pigment is selected from the group of navy blue, blue, green, black, gray, red, brown, purple, and yellow and is added during the molding of the resin.
Further, a paint may be applied to the surface of the molded plate or the hollow plate-shaped member, or a paint may be applied to the upper surface on which a binder such as an acrylic resin is applied. It is also preferable to apply a fluororesin or a phenol resin.
Also, ultrafine-grained activated carbon having pores matching the size of the radioactive substance, or zeolite, ultrafine-grained activated carbon and zeolite may be added to the resin in order to obtain a radioactive substance adsorption effect. The ultrafine-grained activated carbon and zeolite having a particle size of 980 μm or less are preferable for molding, and are also suitable for adsorption of radioactive substances.

Further, since the hollow plate-like body having the culvert plate structure in which the band-like through-holes 11 are formed has a function of smoothly draining rain regardless of a flat surface or a slope, for example, the ground contaminated with radioactive substances When used by laying on the top surface of soil or farmland, the drainage effect of rainfall, the reduction of the transmission of radiation emitted from the ground or soil, and the absorption of radioactive material on the backing sheet in contact with the ground or soil fix the radioactive material Useful for In addition, it is easy to grow a water-retaining soil on the upper surface of the hollow plate-shaped body plate 2 having a culvert structure in which the strip-shaped through-holes 11 are formed, and it is easy to grow plants such as crops. It is. Note that a gap having a drainage channel 96 function exists between the upper surface region of the front thin plate 2 and the bottom rear surface region of the back thin plate 3 from which the radioactive substance can be estimated to be adsorbed. Due to this void structure, the radioactive substance present on the bottom surface is not touched even if the root of the plant planted on the upper surface of the surface thin plate 2 is elongated. That is, a hollow plate-like body having a culvert structure is useful because it prevents radioactive substances from being contained in water absorbed by plant roots.

Other useful applications of the hollow plate-shaped body of this culvert plate structure, for example, by having the above-mentioned function, in the soil of farmland where crop production is not possible due to salt damage due to the effect of the tsunami, It is useful and preferable in the field of agriculture because it can be assumed that it has an effect of preventing secondary salt damage on the soil surface and other agricultural land on which salt removal has been performed. Furthermore, it is also useful to lay a hollow plate-like body having a culvert structure on the upper surface of land contaminated with harmful substances. When this hollow plate-shaped body is manufactured by adding an additive such as a pigment to a resin raw material and using an extrusion molding machine, the width can be 130 cm and the length can be manufactured endlessly. It is preferable to manufacture it in a size that matches the shape and area of the device. The culvert having the hollow plate-like body and the band-shaped through-holes 11 is excellent in rigidity. For example, the drainage channel 96 is strong enough not to break even under the load of the outrigger of a heavy-duty vehicle, so that it is preferable in the field of civil engineering drainage work such as land preparation work requiring a permanent drainage function. Note that a plate, a hollow plate, and a hollow plate having a band-shaped through-hole 11 are useful because it is often provided as a constituent base material of the present invention.

<Tenth embodiment>
In the radiation transmission reducing constituent base material of the tenth invention, the back thin plate 3 shown in FIG. 10A and the front thin plate 2 provided with a plurality of through holes are formed by a large number of cylindrical ribs 4. It is configured in the hollow plate-shaped body 21 before being laminated. It is a perspective view in which a drainage channel 96 is formed between the columnar ribs and the strip-shaped through-hole 11 of the twelfth invention is drilled. The front thin plate 2, the back thin plate 3, and a plurality of ribs are integrally formed.
Fig. A shows a ring-shaped rib, Fig. A shows a square hourglass rib, Fig. C shows a cylindrical rib, and Fig. D shows a plate-like body provided inside the cylindrical rib. The shape is shown. It is preferable to select any of such rib shapes to manufacture the radiation transmission reducing constituent base material. Further, according to this configuration, in order to manufacture the hollow plate-like body 22, it is preferable to manufacture the hollow plate-like body 22 by referring to the description of the material constituting the hollow plate-like member specified in the first embodiment. Further, since a specific example of opening the band-shaped through-hole 11 is specified in the third embodiment, it is preferable that the embodiment is performed in accordance with the reference. Further, in order to increase the mechanical strength and the radiation transmission reducing effect of the culvert plate of the tenth embodiment, the thickness of the front thin plate 2, the back thin plate 3, and the plurality of ribs 4 may be increased, and the number of ribs may be increased. Good to do.

The color of a molded product manufactured by general resin molding is, for example, a finished product is translucent when a polypropylene resin is molded. The translucent front plate 2 and the back plate 3 formed by molding a polypropylene resin which is an insulating polymer are preferably used for obtaining a radiation transmission reducing effect. It is considered that the addition of an antistatic agent and a pigment further enhances the radiation transmission reduction effect. Further, it is preferable to add activated carbon and zeolite because it is considered that the effect of reducing radiation transmission is further enhanced. The color of the pigment added when the polypropylene resin is produced by molding is preferably navy blue, blue, green, black, gray, or red. Radiation transmission reduction rate of the semi-transparent resin molded product that is generally molded and the molded product molded by adding an antistatic agent, navy blue or green pigment, and further by adding activated carbon and zeolite have the same resin mass of the material But you can guess it is different. Further, the hollow plate-like body having the culvert structure in which the strip-shaped through-hole 11 according to the twelfth invention is formed has a function of smoothly draining rainfall regardless of a plane or a slope. When used by laying on the top surface of soil or soil contaminated with substances, the drainage effect of rainfall, the reduction of transmission of radiation emitted from the ground or soil, and the absorption of radioactive material by the backing sheet in contact with the ground or soil Therefore, it is useful for fixing radioactive substances. The hollow plate-like body 22 has a structure in which a peripheral side surface of the plate-like body serves as a drain port. The advantage that the peripheral side surface serves as a drainage port is preferable in terms of workability, since it is possible to eliminate the need to align the direction of the drainage channel when connecting and laying a plurality of sheets on the upper surface of a sloped land.

The plate body formed on the base material for reducing radiation transmission, the front thin plate 2 forming the hollow plate, and the back thin plate 3 are provided for reinforcement, weather resistance, light resistance, heat resistance, electric resistance, insulation, etc. , Polyethylene resin, polyolefin resin such as polypropylene resin, polyvinyl chloride resin, polystyrene resin, polyacrylic resin, ABS resin, polyfluorinated resin, polycarbonate resin, polyester resin, polyalate resin, polyimide A synthetic resin film of a system resin or an aluminum foil may be laminated by selecting a bonding method such as adhesion, adhesion, and vapor deposition. It is also preferable to apply an epoxy resin, a fluorine resin, or a phenol resin on the upper surface of each of the above-mentioned resins or aluminum foil.

<Fourteenth embodiment>
According to the configuration of the fourteenth aspect, both ends (closed end surface 9) or the peripheral edge of the drainage channel 96 shown in FIG. 58 are closed or partially closed, and the drainage channel 96 can store water. FIG. 9 is a cross-sectional view showing that the excess water can be drained from a part of the drainage channel 96 or the through hole and over the rib at the end portion. In the configuration of this cross-sectional view, the drainage channel 96 is filled with the water retention base material 6. Since the water-retaining base material is filled, for example, even if the radiation transmission reducing constituent base material is provided on an inclined surface, the movement of water entering the drainage channel from the through hole is only the surplus water 58 and the water-retaining base material is hydrated. The water will remain stationary. That is, although there is an action of replacing the water-containing and the incoming water, it is preferable to keep a certain amount of water in a stationary state in the water-retaining base material of the drainage channel 96 because the radiation transmission reducing effect is continued.

<Sixteenth embodiment>
According to the configuration of the sixteenth aspect, at least one of the plurality of ribs 4, the front thin plate, and the back thin plate 3 is fitted with the same other radiation transmission reduction constituent base material to thereby form the other radiation transmission reducing base material. It is a radiation transmission reduction component base material according to any one of the twenty-first to fifteenth inventions, including a fitting portion that enables connection with the radiation transmission reduction configuration substrate material.
FIG. 16 is a cross-sectional view showing a cross-sectional shape of a hollow plate-like body 1 suitable for connecting a plurality of hollow plate-like bodies 1. As shown in the upper diagram (a), the front thin plate 2 and the back thin plate 3 are supported by a plurality of ribs 4, and the water retention base material is placed in the water-containing space 5 surrounded by the front thin plate 2, the back thin plate 3 and the rib 4. 6 are filled. The left and right ends of the hollow plate-like body 1 have ribs 4 having a shape enabling fitting. That is, the ribs 4 of different shapes on the left and right sides of the two hollow plate-like bodies 1 are fitted together as shown in the center part of the lower drawing (b). As an example, the thickness of the front thin plate 2 and the thickness of the back thin plate 3 of the hollow plate-shaped body 1 is 3 mm, the thickness of the plurality of ribs 4 is 2 mm, and the ribs 4 of the fitting shape at both ends are also 2 mm. The gap between the rib 4 and the rib 4 is 30 mm, the thickness of the hollow plate 1 is 35 mm, and the length of the rib 4 in the longitudinal direction is 6 m. The weight of the hollow plate-shaped body 1 in the water-saturated state is about 50 to 70 kg / m ² , depending on the content of the water-retaining substrate 6, and the radiation shielding factor can be about 25% to 35%. Can be estimated. The hollow plate-shaped body 1 is preferably manufactured by extrusion molding using a PVC resin as a main material.

Further, when a plurality of hollow plate-shaped members 1 each having the fitting-shaped ribs 4 formed thereon are fitted, a wall having a large area can be easily constructed, which is useful in a place where radiation shielding is required. Further, since the hollow plate-shaped body 1 is composed of four layers, the radiation shielding rate is about 75% (the radiation dose is reduced to about 25%) because the decomposition is easy. It is suitable for. The standard of each member of the hollow plate-like body 1 described above, the front thin plate 2, the back thin plate 3, and the plurality of ribs 4 is an example. For example, if the thickness is formed to 140 mm, the radiation shielding rate becomes about 75%.

<Seventeenth embodiment>
The radiation transmission reducing component base material of the seventeenth invention is a vertical wall having a through hole or a vertical wall having no through hole. The base material for reducing radiation transmission according to any one of the first to fifteenth inventions is connected to form a large plate. The present embodiment having this feature will be described with reference to the drawings.

FIG. 59 is a cross-sectional view of a joint having an I-shaped cross section 43 and a joint 43 having a hollow L-shape showing an example of this embodiment. The upper drawing (a) shows that the water-retaining base material 6 is filled in the water-containing space 5 between the front thin plate 2, the back thin plate 3, and the plurality of ribs 4 in the I-shaped joint 43, and water is injected into the water-retaining base material. This indicates that a radiation-reduction reducing substrate is inserted. The lower drawing (b) shows that the radiation transmission reducing base material shown in the upper drawing is inserted in the right angle hollow L-shaped joint 43. The joint 43 having an I-shaped cross section 43 or an L-shaped hollow corner is formed by integral molding of aluminum. As shown in the figure, since the radiation transmission reducing substrates are connected in a state where there is almost no gap, it is useful to prevent the radioactive substance from scattering from the gap at the connection point and to reduce the transmission of radiation. It is also preferable for maintaining the strength of the connection point. The joint 43 having the I-shaped cross section and the L-shaped joint 43 having a right-angled hollow portion are often used, and the radiation-reduction reducing base material according to any one of the first to seventeenth inventions can be formed into various shapes. . For example, a cube, a rectangular parallelepiped, a triangular pyramid, a quadrangular pyramid, a truncated pyramid, a quadrangular prism, and a triangular prism are selected as joints of a wall material. It is preferable because it can be connected. The sectional view (c) shows a hollow I-shaped joint formed of a PVC resin. The hollow plate in which the plate-like rib 4, the front thin plate 2, and the back thin plate 3 are formed is shown. The cross-sectional view (d) shows a hollow plate in which a plate-shaped rib 4, a front thin plate 2, and a back thin plate 3 are fitted to a right-angled hollow L-shaped joint formed of a PVC resin. . The cross-sectional view of FIG. 1E is an example, but the end face of the hollow plate including the plate-like ribs 4, the front thin plate 2, and the back thin plate 3 is closed by a hollow circular closing member 10.
A through hole is formed in the base material to be connected and the I-shaped joint 43, the I-shaped joint 43, or the right-angled hollow L-shaped joint 43, and using fixing members such as bolts, nuts, screw screws, nuts, washers, and rivets. It is more preferable to fix.

<Eighteenth Embodiment>
The radiation transmission reducing component base material according to an eighteenth aspect of the present invention is the radiation transmission reducing component base material according to any one of the first to seventeenth aspects, wherein the radiation transmission reducing component base material has a thin plate shape, a corrugated plate shape, an uneven shape, a box shape, a rectangular parallelepiped, and a cube. Alternatively, it is a radiation transmission reducing base material in which a culvert or a molded body having a gutter shape and a through-hole formed in a thickness direction is laminated.
The upper diagram (a) of FIG. 60 shows a box-like (box body 37) showing an example of this embodiment, in which the activated carbon adhered sheet 17 is laid on the upper surface of the radiation transmission reduction constituent base material of the third invention. It is sectional drawing which shows that it is equipped with. Note that a plurality of through holes 12 are formed in the thickness direction of the bottom of the box 37. The inside of the box 37 is filled with soil 33 in which cotton-like rock wool fibers containing water, fertilizer, humus and the like are mixed. The structure is also useful for producing crops, flowers and trees. In addition, it is preferable because the water-containing load without movement, which is useful for shielding radioactive substances, is configured.

The lower drawing (b) is a cross-sectional view showing that a concrete block having a rectangular parallelepiped shape 107 is provided on the upper surface of the radiation transmission reducing component base material of the third invention as in the upper drawing (a). The concrete block is provided with a through hole 12 in the thickness direction to prevent rain from collecting on the surface of the concrete block. Moreover, a concrete block can be used as a planting block. In order to make the planting block specification, filling the soil for planting inside the through-hole 12 and planting plants such as turfgrass can be suitable for greening a parking lot or the like. In addition, it is preferable to select a concrete block having water retention because heat island is suppressed together with the effect of the present invention. Moreover, you may replace with a planting concrete block by selecting the shape of a saw, a corrugated sheet, an uneven shape, a box, a rectangular parallelepiped, a cube, or a trough made of resin or wood. Although not explicitly shown in the figure, a nonwoven fabric having a thickness of about 0.3 mm to 5 mm may be laminated between the rectangular parallelepiped shape 107 and the radiation transmission reducing constituent substrate of the third invention. In addition, it is preferable to provide the structures shown in the upper and lower figures on the upper surface of a portion that is contaminated with a radioactive substance to reduce the transmission of radiation.

<Nineteenth Embodiment>
An embodiment of the nineteenth invention is directed to the radiation transmission reducing component base material according to any one of the first to eighteenth aspects, wherein a nonwoven fabric and / or ultrafine-grained activated carbon is attached to or impregnated on the front thin plate side or the rear thin plate side. Are laminated or bonded. As an example, it is preferable that the nonwoven fabric to which the ultrafine-grained activated carbon is adhered is bonded to the surface thin plate of the first invention, because the activated carbon is uniformly provided in the nonwoven fabric, and the activated carbon adsorption effect can be obtained in a planar shape. As a means for bonding, it is preferable to bond using a tacker needle in addition to bonding, heat fusion, adhesion, or adhesion, heat fusion, adhesion. Also, any method may be used. Further, since the water-retaining base material is hydrated, it is useful because it becomes a radiation transmission reduction constituent base material which has a radiation transmission reduction function which has both a water-containing load shielding element and a planar adsorption element. The activated carbon attached to the nonwoven fabric may have a particle size of 1200 μm or less. In order to require a chemical adsorption effect of activated carbon, it is preferable to select an ultrafine activated carbon having a particle size of 1000 μm or less.

<Twenty-third embodiment>
In an embodiment of the twenty-third aspect of the present invention, rock wool fiber or a molded product thereof is laminated on the surface thin plate side of the radiation transmission reducing component base material according to any one of the first to twenty-second aspects. Rock wool fiber is preferably used for green lands because it uses blast furnace slag generated during iron making as a main raw material and does not contain weed seeds unlike ordinary soil. In addition, it has excellent heat insulating properties. The heat insulation is preferable because it can be expected to be effective in reducing radiation transmission. In addition, since it has water retention, it is useful for the invention.

<Twenty-fourth embodiment>
According to an embodiment of the twenty-fourth aspect of the present invention, the formed product of the rock wool fiber of the twenty-third aspect is a nonwoven fabric, a felt-like body, a plate-like body, a square bar, a granular material, or a cotton-like material. Furthermore, a form in which a tortoise-mesh mesh is bonded to the surface of the rock wool fiber molded body, a form in which the surface of the molded body is covered with glass cloth, and an aluminum foil and a glass fiber sheet are bonded to the surface of the molded body Rock wool fiber in the form of bonded aluminum cloth is included,
Either of the above-mentioned molded bodies, the peripheral portion of the radioactive substance adsorption sheet of the twenty-first or twenty-second invention, inside the bag formed in a bag that is closed or closed leaving a partial opening, Since it is a form filled as a water-retaining substrate or a void-retaining substrate, it is preferable because the shape of the water-retaining substrate is maintained even when the water-retaining substrate is hydrated. It is also preferable for pressure resistance and durability. This is useful because radiation transmission is reduced over a long period of time.

<Twenty-fifth embodiment>
According to this embodiment of the twenty-fifth aspect, the peripheral portion of at least one of the water-proof sheet, the moisture-proof film, and the two-layer sheet in which the moisture-proof film and the water-proof sheet are laminated is closed or partially open. The 24th invention or the 71st, 72th, or 74th invention is the inside of a bag form in which a plurality of holes are formed in a watertight sheet or a moistureproof film in which a plurality of holes are formed. Since any one of the water-holding base materials is filled, there is no change in the amount of water held. Therefore, the effect of reducing the shielding of the dose can be expected for a long time, which is preferable. In addition, as an example, the dry weight of a bag having a width of 70 cm and a width of 20 cm is about 20 kg, but the saturated weight of water is 120 kg. This load is preferable because it is useful for reducing the transmission of radiation.

<Twenty-sixth embodiment>
According to an embodiment of the twenty-sixth aspect, the radiation transmission reducing component according to the twenty-fifth aspect is provided with the radiation transmission reducing component according to the twenty-fifth aspect on the upper surface of a portion contaminated with a radioactive substance. The radiation transmission reducing base material according to any one of the first to 22th aspects is laminated on the upper surface of the substrate, which is preferable since the radiation transmission reducing effect increases.

<Twenty-seventh embodiment>
An embodiment of the twenty-seventh invention is the twenty-third or twenty-fourth invention in which a concave portion or a through hole is formed in a molded product of rock wool fiber. When a concave portion or a through hole is formed in a rectangular parallelepiped or cubic formed body made of rock wool fibers, it is easy to fill the concave portion with microcrystalline carbon or the like that is useful for reducing radiation transmission. Note that a plurality of recesses is preferable.

<Twenty-ninth embodiment>
An embodiment of the twenty-ninth aspect of the present invention is directed to a twenty-fourth aspect of the present invention, wherein the radiation transmission reducing component base material according to any one of the first to twenty-third aspects is bent or side walls are erected at both ends of the radiation transmission reducing component substrate. Therefore, it is preferable to install in a side groove contaminated with a radioactive substance, because it is considered that the radioactive substance existing on the inner wall surface and the bottom surface of the side groove is useful for reducing radiation emitted. Further, another member or the base material for reducing radiation transmission according to any one of the first to twenty-third aspects of the present invention is provided at both ends of the groove, and when fixed with a fixing member, a box-shaped body is formed. Can contain the contaminants that are contaminated with. Note that it is preferable that a lid for the base material be formed on the upper surface.

<Thirty-first embodiment>
An embodiment of the thirty-first invention is directed to a radiation-protection green base material using the radiation-transmission reduction constituent base material, in which a soil layer is laminated on the upper surface of the radiation-transmission reduction constituent base material of any of the first to thirty inventions; It is a greening structure to prevent radioactive material diffusion. The soil of the soil layer may be a material having a water retention property, but more preferable materials include a soil having both an aeration environment, a carbon environment, a trace element fertilizer environment, and a drainage environment suitable for plant root elongation. You should select The load on the soil with water retention is useful for reducing radiation transmission.

<Thirty-second embodiment>
The embodiment of the thirty-second aspect of the present invention is the radiation-protecting green space and the greening structure for preventing radioactive material diffusion using the radiation-transmission-reducing constituent base material according to the thirty-first invention, in which turfgrass is planted in a soil layer. . According to the invention, the plant is useful because it can be grown as forcing culture. Turfgrass is useful because it can be used to improve the living environment of children such as school yards, gardens, and parks, because any turfgrass such as warm and cold can be grown. In the case of a soil having a high water content, water may ooze from the soil to the lawn surface, but the turf of the present invention has a water content of 90% by volume. No accumulation phenomenon is exhibited. Therefore, it is suitable for sports. Of course, it is suitable for reducing the transmission of radiation due to the high moisture content and the base material constituting the soil.

<Thirty-third embodiment>
In this embodiment of the thirty-third aspect, rock wool fibers or a molded product thereof and a soil layer are alternately laminated on a soil layer, and the top surface is rock wool fibers or a molded product thereof or a soil layer. It is a radiation-protected green space and a radioactive-greening greening structure using the base material for reducing radiation transmission according to the thirty-first or thirty-second invention. It is preferable to provide such a soil layer because the thermal environment in the soil layer is stabilized. This structure is useful because it can be inferred that the countless minute voids and water content prevent the soil from becoming hot, that is, the present invention can suppress the effect of radiation on heat.

<34th embodiment>
An embodiment of the thirty-fourth invention is characterized in that a large number of through-holes or band-shaped through-holes are formed between rock wool fibers or a molded product thereof and a soil layer, in rock wool fibers or a molded product thereof or in a soil layer. A thirty-third invention is a thirty-third invention in which a hollow plate-like body formed by laminating a front thin plate and a back thin plate having a large number of through holes or band-shaped through holes through a plurality of ribs is stacked. According to the structure of the present invention, since the rock wool fiber is interposed between at least two hollow plate-like bodies, the movement of water contained in the rock wool fiber is maintained as a substantially static body. It is preferable because the load caused by water content useful for radiation transmission reduction and the soil water content area required by the planted plant are formed in the upper and lower layers, so that the root water absorption activity of the plant is not hindered. In addition, it can be assumed that it is useful for reducing radiation transmission.

<50th embodiment>
In the structure according to the fiftieth aspect of the present invention, the front thin plate 2 and the back thin plate 3 each include a plurality of plates, cylinders, truncated cones, honeycombs, prisms, truncated pyramids, or lattices. Any one of the hollow plate-like body 21, the resin plate, the resin sheet, and the rubber sheet laminated via the rib of the above, or the upper surface of the radiation transmission reduction constituent base material according to any one of the first to seventeenth inventions The culvert is plate-shaped, box-shaped, gutter-shaped, scalloped, uneven, sponge-shaped or corrugated, and has a thickness of 0.03 mm or more on the upper surface of the substrate on which a plurality of through holes are formed. Nonwoven fabric having a basis weight of 10 g / m ² or more / or a nonwoven fabric to which activated carbon is attached or impregnated, two nonwoven fabrics are joined in a grid pattern, and a fertilizer or a mixture of fertilizer and activated carbon is formed between upper and lower nonwoven fabrics formed in the grid. At least one of the plant cultivation sheets enclosing the A radiation-transmitting material characterized in that a granular shaped body made of rock wool fiber having a density of 25 kg / m ³ or more is laminated on the upper surface thereof, and a soil layer 33 is further laminated on the upper surface of the rock wool fiber. It is a radiation-protected green space and a greening structure for preventing radioactive material diffusion using the reduced constituent base material.

FIG. 55 (a) is a bottom view showing a box 37 formed of polypropylene resin.
In the cross-sectional view (b) in the middle, the box 37 is placed on the upper surface of the hollow plate 21 so that the bottom surface of the box 37 shown in FIG. The activated carbon-adhered permeable sheet 17 is laminated on the upper surface of the bottom surface. FIG. 3 is a cross-sectional view in which a rock wool cotton-like body 101 having a density of 25 kg / m 3 or more and soil 33 are laminated on the upper surface of the activated carbon-adhered water-permeable sheet 17. When the thus configured soil structure is installed on a location where the radiation dose shows a relatively high value, the dose transmitted through the soil structure is reduced. In order to increase the reduction rate, it is preferable to increase the mass of the soil 33 and the rock wool fluff 101 so that the water content of the soil 33 and the rock wool fluff 101 increases. Further, when the box 37 is formed of a resin, a pigment such as navy blue, blue, green, black, gray, or brown is added to the thermoplastic polypropylene resin. It is preferable because it is possible to presume that the amount of water transmitted through the soil structure is reduced due to the voids and water content of the activated carbon and the mineral wool fiber. That is, a factor of shielding other than the load of the structure is that electromagnetic waves of radiation are suppressed by the polypropylene resin having the insulator. Then, it is conceivable that the fine voids made of the fiber-shaped mineral and carbon suppress heat conduction of radiation. Further, it is considered that this is based on the fact that a large amount of water, which is a compound of hydrogen and oxygen, is integrated. Further, as a thing which can be presumed to reduce the transmission of the radiation dose, it is also preferable to replace the hollow plate 21 with the hollow plate 21 by selecting any one of the first to seventeenth inventions. Note that a configuration in which at least one of the first to seventeenth aspects is selected is also preferable. The box 37 is an example of the present invention and is not limited to this.

In the configuration of the cross-sectional view shown in the lower diagram (c), the activated carbon-adhered water-permeable sheet 17 is laid on the upper surface of a hollow culvert plate 22 made of polypropylene resin which is a thermoplastic resin. The rock wool cotton-like body 101 is activated carbon-adhered water-permeable to the position close to the bottom surface (FIG. A) of the box body 37 so that the bottom of the box 37 is upward as shown in FIG. The sheet 17 is stacked on the inner region of the box 37 from the upper surface. The soil 33 is laminated on the upper surface of the rock wool cotton body 101. A plant 95 is planted in the soil 33 in the circular inner region of the box 37. The thickness of the box 37 is 18 cm. The total weight of the water-containing saturated weight of the soil 33 and the rock wool flocculent body 101 and the weight of the hollow culvert plate 22 in this thickness region is about 240 kg / m ² , and the radiation transmission reduction rate is about 80 kg / m ² . %. It should be noted that addition of a pigment of a dark color such as blue, green, or black to the polypropylene resin, which is a thermoplastic resin, can be expected to improve the reduction rate of radiation transmission. Factors of shielding other than the load on the structure include suppression of electromagnetic waves of radiation by a polypropylene resin having an insulator. Then, it is conceivable that the heat conduction of radiation is suppressed by the action of oxygen existing in the pores of the activated carbon having countless pores and the activated carbon having countless pores. Further, it is considered that this is based on the fact that a large amount of water, which is a compound of hydrogen and oxygen, is integrated. In addition, a disaster prevention nonwoven fabric sheet mainly made of aramid fiber is laminated on the upper surface of the soil of the soil structure having this configuration, and the structure is integrated with bolts and nuts of a plurality of fixing members to green the shielding wall of radioactive material. It is preferable because it can be manufactured and provided as a structure. Therefore, the fiftieth invention is useful.

<51st embodiment>
The structure according to the fifty-first aspect of the present invention relates to a radiation transmission reduction structure, wherein the front thin plate and the back thin plate are formed of a plurality of plate-like, cylindrical, truncated conical, honeycomb, prismatic, truncated pyramidal, or lattice-shaped ribs. Any one of a hollow plate-like body, a resin plate, a resin sheet, and a rubber sheet, which is laminated via a through hole, or a culvert on the upper surface of the radiation transmission reducing constituent base material according to any one of the first to seventeenth aspects. Is plate-like, box-like, gutter-like, scalloped, uneven, sponge-like or corrugated, and has a thickness of 0.03 mm or more and a basis weight of 10 g on the upper surface of a base material having a plurality of through holes. / M ² or more non-woven fabrics, or a non-woven fabric to which activated carbon is attached or impregnated, two non-woven fabrics are joined in a grid, and a fertilizer or a mixture of fertilizer and activated carbon is enclosed between the upper and lower non-woven fabrics of the generated grid. At least one of the plant growing sheets A radiation-protected green space and a greening-protected structure using the radiation-transmission-reducing constituent base material, in which a soil layer containing fertilizer, humus, minerals and rock wool fiber is laminated on the upper surface thereof.

56 (a) to (d) are cross-sectional views showing an example of the constituent base material of this embodiment. In FIG. 7A, a cushion material 104 in which a resin overlaps in a thread shape and is formed in a sponge shape is laminated on the upper surface of the hollow plate-shaped body 22. A nonwoven fabric 17 to which activated carbon is attached is laminated on the sponge-like upper surface. On the upper surface of the nonwoven fabric 17, a soil layer 33 containing fertilizer, humus, minerals and rock wool fiber 101 is laminated with a thickness of 15 cm. In FIG. 2B, a plate-shaped support member 105 is alternately formed and laminated on the upper surface of the hollow plate-shaped body 22 with the above-described sponge-shaped cushion member 104. A nonwoven fabric 17 to which activated carbon is attached is laminated on the upper surface. On the upper surface of the nonwoven fabric 17, a soil layer 33 containing fertilizer, humus, minerals and rock wool fiber 101 is laminated with a thickness of 15 cm.

In FIG. 57 (c), the base material shown in the front view and side sectional view (b) of FIG. 57 (a) is laminated on the upper surface of the hollow plate 21. In this base material, the above-described sponge-shaped cushion material 104 is housed in the inside of each triangular shape of the rectangular support member 105 having a height of 5 cm shown in the figure. This is a support base material in which the cushion material 104 and the support material 105 each having a thickness of 2 cm are united. A nonwoven fabric 17 to which activated carbon is attached is laminated on the upper surface of the supporting base material. On the upper surface of the nonwoven fabric 17, a soil layer 33 containing fertilizer, humus, minerals and rock wool fiber 101 is laminated with a thickness of 15 cm.

FIG. (D) shows a nonwoven fabric 17 on which activated carbon is attached on the upper surface of the hollow plate-shaped body 22 on which the supporting base material shown in FIG. ing.
On the upper surface of the nonwoven fabric 17, a soil layer 33 containing fertilizer, humus, minerals and rock wool fiber 101 is laminated with a thickness of 15 cm.
The load on each of the soils (a) to (d) shown in FIG. 56 is about 200 kg in a water-containing saturated state.
This load is preferable because transmission of radiation can be reduced.

Further, the cross-sectional view shown in FIG. 56 (c) shows that the resin is overlapped in a thread form on the upper surface of the hollow plate-like body 22, and the thickness of the cushion material 104 is 2 cm. Activated carbon is placed on the upper surface of a support substrate in which rock wool fibers 101 of 3 cm are housed in respective triangular inner regions of a rectangular support 105 having a height of 5 cm shown in the above figures (a) and (b). Are laminated. On the upper surface of the nonwoven fabric 17, a soil layer 33 containing fertilizer, humus, minerals and rock wool fiber 101 is laminated with a thickness of 15 cm. The combined load of 101 layers of rock wool fibers 3 cm in thickness accommodated in the supporting base material and the soil layer 33 laminated in 15 cm in thickness is about 230 kg in a water-saturated state. This load is preferable because transmission of radiation can be reduced.

<80th embodiment>
An 80th aspect of the present invention provides a radiation transmission reducing wall structure, comprising: a plate member arranged to form a container or a flameproof sheet formed by laminating a nonflammable sheet or a flameproof sheet with a mesh material; A water retention base material or a water retention base material and a gas phase portion, wherein the plate material or the reticulation flame sheet has a through hole or a notch that allows planting or water injection, reducing radiation transmission. Wall structure.
The upper part (a) of FIG. 48 is a sectional view showing a side surface of an example of this embodiment.
According to this configuration, the hollow plate-shaped body 22 made of polypropylene resin, which is a thermoplastic resin, is formed of aluminum and the front, bottom, and back surfaces of the slope are formed of aluminum. 29 are formed. The joint between the joint 29 and the hollow plate 22 is fixed with a screw. In addition, the upper corner of the front surface of the hollow plate-like body 22 is formed by cutting the surface thin plate and bending the cut to form the upper surface. The rear end of the upper surface is fitted into the joint 29 and fixed with a screw screw of a fixing member.

Note that a plurality of through holes 13 for planting are formed in the unnatural sheet 41 made of glass fiber fabric on the front surface. The planting through-holes 13 are formed in the hollow plate-like body 22 on the inner surface thereof at the same positions as the planting through-holes 41 made of glass fiber fabric on the front surface. Further, a water retention base material 6 whose main material is rock wool and activated carbon is filled in a region inside the hollow plate-shaped body 22. On the back surface of the water-retaining base material 6, rock wool, which is a water-repellent heat-insulating material 42 that does not contain water and constitutes the gas phase portion 118, is provided. On the upper surface, four planting through holes 13 each having a diameter of 20 cm are opened and a plant 95 is planted. Plants 95 are planted in a plurality of planting through holes 13 provided on the front surface. This self-supporting radiation transmission reducing wall structure has a height of 130 cm, a width of 100 cm, a bottom depth of 50 cm, and a top depth of 25 cm. The load is 470 kg in a water-saturated state. Due to the total load and the load relating to the depth width and the constituent base material of the present invention, for example, the dose emitted from the radioactive substance existing on the land behind the rear surface of the radiation transmission reduction wall structure is reduced. It is preferable because transmission to the front surface of the body can be sufficiently reduced. Water injection may be performed from the planting through hole 13. In addition, it is preferable that rainfall also falls from the planting through hole 13 to the water retention base material 6 inside the radiation transmission reducing wall structure.

<Eighteenth Embodiment>
The radiation transmission reducing wall structure according to an eighteenth aspect, wherein the container has a slope, and a band-shaped through-hole extending substantially horizontally is formed in a region of the plate member forming the slope. The radiation transmission reducing wall structure of the invention.
The lower diagram (b) of FIG. 49 is a partial front view showing the band-shaped through hole of this embodiment.
A polypropylene resin which is a thermoplastic resin fitted to an I-shaped aluminum molded joint 29 shown vertically between corner hollow L-shaped joints 29 shown laterally above and below. A plurality of strip-shaped through holes 11 are formed in the formed hollow plate-shaped body 22. The width of the band-shaped through-hole may be selected from 2 mm to 10 mm. The hollow plate 22 has a plurality of through holes 12 formed in the front and back thin plates of the hollow plate 22. An unnatural fabric 41 made of glass fiber is bonded to the front surface of the hollow plate 22. The through-hole 13 for planting is opened in the unnatural fabric 41, and a plant 95 is planted. When the strip-shaped through-holes 11 and the through-holes 12 are formed at intervals in the hollow plate-like body 22 constituting the slope, when rain falls on the surface of the radiation transmission reducing wall structure, rainwater Penetrates the glass fiber fabric on the surface from the top to the bottom of the slope to flow water. The flowing water flows down into the band-shaped through-holes 11 and 12 formed in the lateral direction and is contained in the water-retaining base material. Since the radiation transmission reducing wall structure having both of the through holes is excellent in the function of collecting rainwater to the water retention substrate, it is preferable to supplement the water content consumed by plants with rainfall. That is, it is preferable for maintaining the water-containing load of the water-retaining base material, which is indispensable for reducing radiation transmission.

<Eighteenth Embodiment>
An embodiment of the 82nd invention is the radiation transmission apparatus according to the 80th or 81st aspect, further comprising a skeleton installed inside the container and holding a shape of the plate or the netting sheet as a container. It is a reduced wall structure.
An upper view (a) of FIG. 49 is a cross-sectional view showing a side surface of an example of this embodiment.
According to this configuration, the front plate, the bottom plate, and the back plate forming the slope are made of the hollow plate-like body 22 made of polypropylene resin which is a thermoplastic resin, and three corner hollow L-shaped joints 29 of the seventeenth invention are used. It is formed. The joint between the joint 29 and the hollow plate 22 is fixed with a screw.
In addition, the upper corner of the front surface of the hollow plate-like body 22 is formed by cutting the surface thin plate and bending the cut to form the upper surface. The rear end of the upper surface is fitted into the joint 29 and fixed with a screw screw of a fixing member. In addition, a plurality of through holes 13 for planting are formed in the front netting flameproof sheet 106. A planting through-hole 13 is formed in the hollow plate-like body 22 on the inner surface thereof at the same position as the planting through-hole 13 of the netting flameproof sheet 106 and is bonded to the hollow plate-like body 22. In addition, a resin plate as the aggregate 102 is assembled in a region inside the hollow plate-like body 22 in a frame shape using bolts and nuts of the fixing member 16. Examples of this frame shape are shown in the perspective views of FIGS. 50 and 53 and the cross-sectional view of FIG.

A region inside the hollow plate 22 is filled with a rock wool plate 42 which is also a gas phase portion, and a water retention base material 6 whose main material is rock wool and activated carbon. On the upper surface, four planting through holes 13 each having a diameter of 20 cm are opened and a plant 95 is planted. Plants 95 are planted in a plurality of planting through holes 13 provided on the front surface. This self-supporting radiation transmission reducing wall structure has a height of 130 cm, a width of 100 cm, a bottom depth of 50 cm, and a top depth of 25 cm. The load is 480 kg in a water-containing saturated state. Due to the total load and the load relating to the depth width, and the content of the water retention base material 6, for example, the dose emitted from the radioactive material existing on the land behind the rear surface of the radiation transmission reducing wall structure is reduced by radiation transmission. It is preferable because transmission to the front surface of the reduction wall structure can be sufficiently reduced. Water injection may be performed from the planting through hole 13. In addition, it is preferable that rainfall also falls from the planting through hole 13 to the water retention base material 6 inside the radiation transmission reducing wall structure.

<83rd embodiment>
In an embodiment of the 83rd invention, the plate is a resin plate,
The invention according to any one of Items 80 to 82, wherein the radiation transmission reduction wall structure further includes a flameproof sheet or the mesh flameproof sheet laminated on at least a part of the surface of the resin plate. FIG. 51 is a side sectional view showing an example of this embodiment.
According to this configuration, the front plate, the bottom plate, and the back plate, each of which forms a slope, are made of a polypropylene resin, and the three hollow hollow L-shaped joints 29 of the seventeenth invention are made of aluminum. It is formed. The joint between the joint 29 and the hollow plate 22 is fixed with a screw. In addition, the upper corner of the front surface of the hollow plate-like body 22 is formed by cutting the surface thin plate and bending the cut to form the upper surface. The rear end of the upper surface is fitted into the joint 29 and fixed with a screw screw of a fixing member. The bottom plate, the back plate, the top plate, and the front plate are each formed of the hollow plate-shaped body 22. The front main material is a flameproof sheet 41 made of nonwoven fabric of aramid fiber, and is formed inside the flameproof sheet 41. A plurality of through holes 13 for planting are formed in the same place in the hollow plate-shaped body 22. Further, in the bottom plate 22, band-shaped through holes having a function of draining excess water are formed in the front and back thin plates of the hollow plate 22. The area of the upper surface where the nonwoven fabric to which activated carbon is adhered is laid on the upper surface of the hollow plate-like body 22 is filled with the water retention base material 6 mainly composed of rock wool. A planting through hole 13 having a diameter of 20 cm is opened on the upper surface, and a plant 95 is planted. Plants 95 are planted in a plurality of planting through holes 13 provided on the front surface. Note that a radiation transmission reducing component base member having a band-shaped through-hole 11 of the ninth invention is provided below the sectional view of the side surface.

Since the base material is a hollow plate-like body, a back thin plate and a front thin plate are stacked via a plurality of plate-like body ribs, and the plate-like bodies are installed substantially in parallel, and a drainage channel is formed. Surplus water that falls from the bottom plate of the radiation transmission reduction wall structure provided on the upper surface can be received and water can be passed to the destination of drainage. Further, a plurality of portions are fixed to the radiation transmission reducing constituent base material and the bottom plate of the radiation transmission reducing wall structure using bolts, washers, and nuts of a fixing member. In addition, a water retention base material 6 for planting and a concrete plate of an edge material are provided on the upper surface of the radiation transmission reduction component base material in front of the radiation transmission reduction wall structure. It is preferable that the radiation transmission reducing wall structure is connected to the radiation transmission reducing structure base member because the stationary state of the radiation transmission reducing wall structure having a low center of gravity increases.
This self-supporting radiation transmission reducing wall structure has a height of 130 cm, a width of 100 cm, a bottom depth of 50 cm, and a top depth of 25 cm. The load is 480 kg in a water-containing saturated state. Due to the fusion of the total load, the load relating to the depth width, and the base material constituting the present invention, for example, emission from radioactive substances existing on the land (indicated by an arrow) behind the back surface of the radiation transmission reduction wall structure It is preferable because the dose to be transmitted can be sufficiently reduced from being transmitted to the front surface of the radiation transmission reducing wall structure. Water injection may be performed from the planting through hole 13. In addition, it is preferable that rainfall also falls from the planting through hole 13 to the water retention base material 6 inside the radiation transmission reducing wall structure.

<Embodiment 84>
In an embodiment of the eighty-eighth aspect, the plate material is a hollow plate-like body in at least a part of the region,
The hollow plate-shaped body is a radiation transmission reduction wall structure according to any one of the 80th to 83rd inventions, including a plurality of ribs, and a front thin plate and a back thin plate laminated via the plurality of ribs. .
In each of the 80th to 83rd aspects, the radiation transmission reducing wall structure in which the hollow plate-shaped body 22 is formed is shown in each figure. This hollow plate 22 is the hollow plate of the ninth and tenth inventions. That is, the back plate 3 and the top plate 2 are stacked via a plurality of plate ribs 4, and the plate members are installed substantially in parallel, and the hollow plate member 22 formed with the drainage channel 96 is formed. It is. And, or a back thin plate and a front thin plate provided with a plurality of through holes are formed of a hollow plate-like body laminated through a plurality of ribs, and the rib 4 is a plate-like body, A plate structure in which the plate-like members are disposed substantially parallel to each other to form a drain passage 96, the through-hole is a band-like through-hole 11, and a plurality of band-like through-holes 11 are drilled crossing the plate-like body. It is a radiation transmission reduction constituent base material characterized by the following. Further, in the hollow plate-shaped body of the tenth invention, the back thin plate 3 and the two front thin plates provided with a plurality of through holes are formed by a large number of cylinders, cylinders, prisms, truncated cones, truncated pyramids. , A hollow plate-like body laminated via any one of ribs in a ring shape, and a drain passage 96 is formed between the front thin plate 2, the back thin plate 3, and any one of the ribs. It is a radiation transmission reducing base material.
The material constituting the hollow plate-like body and the constituent requirements are specified in relation to the first and second inventions. In general, a polypropylene resin product completed by molding is translucent, but in the present invention, when the hollow plate-like body is molded with a polypropylene resin which is a thermoplastic resin, a dark blue, blue, green, black, gray, Although one of the brown and red pigments is added to the polypropylene resin, translucent or transparent molding having an insulating effect may be selected. Since it can be inferred that electromagnetic waves can be suppressed by the polypropylene resin having insulation, it is preferable to select a resin plate made of a thermoplastic resin for the radiation transmission reducing wall structure. The above is one example of this embodiment, and does not limit the material constituting the hollow plate-shaped body.

<Embodiment 85>
An embodiment of the eighty-fifth invention includes a partial bottom region inside the container, a partial lower region of the skeleton base material installed inside the container, and a lower surface of a bottom plate material arranged to form the container. The hollow plate-like substrate, the metal substrate, the concrete substrate, the stone substrate, the resin substrate, or the mineral substrate according to the eighth to tenth or 84th inventions, in a partial region or any external region exceeding the region. Place any of the materials,
The skeleton base material or the bottom plate material and the hollow plate body base material, the metal base material, the concrete base material, the stone base material, the resin base material, and the mineral base material arranged in the container are connected to each other by a joining or fixing member. A radiation transmission reduction wall structure according to any one of the 80th to 84th inventions, which can be provided. The upper part (a) of FIG. 52 is a sectional view showing an example of this embodiment.

According to this configuration, the front plate, the bottom plate, and the back plate forming the slope are formed of three hollow plate-like bodies 22 made of polypropylene resin, which is a thermoplastic resin, and three corner hollow L-shaped joints 29 of the seventeenth invention are used. It is formed. The joint between the joint 29 and the hollow plate 22 is fixed with a screw. In addition, the upper corner of the front surface of the hollow plate-like body 22 is formed by cutting the surface thin plate and bending the cut to form the upper surface. The rear end of the upper surface is fitted into the joint 29 and fixed with a screw screw of a fixing member. The flameproof sheet 41 on the front side has a plurality of through holes 13 for planting. A planting through-hole 13 is opened in the hollow plate-like body 22 on the inner surface at the same position as the planting through-hole 13 of the flameproof sheet 41 and is bonded to the hollow plate-like body 22. Further, a water-repellent heat insulating material 42 is provided on the inner side surface of the hollow plate-shaped body 22 except for the bottom surface and the top surface. A plurality of through holes 13 and 12 for planting are formed in the water-repellent heat insulating material 42 made of plate-like rock wool shown on the slope of the drawing. A resin plate as the aggregate 102 is assembled in a region inside the water-repellent heat insulating material 42 into a frame shape by using bolts and nuts of the fixing member 16. An example of this framework is shown in the perspective view of FIG. As shown in the frame structure in the perspective view, a rod-shaped reinforced concrete base material 107 having a width of 20 cm and a width of 2 m is wound around a stainless steel wire rope around the aggregate 102 and fastened with a wire clip to reduce radiation transmission. It is also preferable to lower the center of gravity of the wall structure. The reinforced concrete base material 107 may be provided from the bottom region of the frame structure to the outside region for a long time. A box 37 for accommodating the heavy object 109 is formed with a thickness of about 30 cm on the upper surface of the hollow plate 22 which is the bottom plate of the radiation transmission reducing wall structure.

Instead of the box 37, a resin container filled with a liquid such as water may be provided in the bottom region of the frame structure. The area inside the water-repellent heat insulating material 42 and the upper surface area of the box 37 are filled with the water-retaining base material 6 mainly composed of rock wool. An irrigation tube is provided in a perforated tube at the upper part of the frame structure, and a planting through hole 13 having a diameter of 20 cm is opened at a plurality of places on the upper surface to plant a plant 95. Plants 95 are planted in a plurality of planting through holes 13 provided on the front surface. FIG. 2B is a perspective view showing the box 37. The material forming the box body 37 is the hollow plate-shaped body 22 having the band-shaped through hole 11. This box 37 contains iron ore for increasing the low center of gravity more than the 80th to 84th radiation transmission reducing wall structures. This self-supporting radiation transmission reducing wall structure has a height of 130 cm, a width of 100 cm, a bottom depth of 50 cm, and a top depth of 25 cm. The load is 630 kg in a water-containing saturated state. Due to the total load and the load relating to the depth width, and the base material constituting the present invention, for example, the dose emitted from the radioactive substance existing on the land behind the back surface of the radiation transmission reducing wall structure reduces the radiation transmission reduction. It is preferable because transmission to the front surface of the wall structure can be sufficiently reduced. Water injection may be performed from the planting through hole 13. In addition, it is preferable that rainfall also falls from the planting through hole 13 to the water retention base material 6 inside the radiation transmission reducing wall structure. FIG. 52 shows an example of a planted structure. When the through hole for planting is closed with a plate or the like after being impregnated with the water retention base material, the above-mentioned 630 kg load is almost permanent. Is secured. If the load is a structure having a low center of gravity as in the present invention, it is preferable for wind resistance, and theoretically, it is a load that does not collapse even in a strong wind with a wind speed of 40 m. preferable.

FIG. 53 is a perspective view showing an example of the embodiment relating to the 85th invention.
According to this configuration, the upper surface is formed to be curved as shown in FIG. This is an example of a structure for reducing the wind pressure on the radiation transmission reduction wall structure. Also, as shown in the figure, if the front bottom surface is formed wider forward, the center of gravity becomes lower, which is preferable for measures against wind pressure. FIG. 2B shows an example in which the iron plate 103 is installed, and the bottom surface of the radiation transmission reducing wall structure and the iron plate are fixed. Note that a plate material such as a resin plate, a wooden plywood, or a rubber plate may be provided instead of the iron plate 103. In addition, the figures shown in a to f show side cross sections of the radiation transmission reducing wall structure, which is preferably formed with a height of 1 m to 2 m and a bottom width of 1 m to 2 m. The radiation transmission reducing wall structure having such a shape is preferable because it can be a structure that can withstand strong wind pressure. Although there is no limitation on the height, it is desirable that the height be designed with measures against wind pressure in mind.

FIG. 54 is a perspective view showing an example of the embodiment relating to the 85th invention.
Below the front surface of the radiation transmission reducing wall structure shown in the perspective view, a projection structure integrated with the structure is formed. A through hole 13 for planting a plant is opened in the front structure, and a plant 95 is planted. Further, a hollow plate 21 made of concrete is fixed to the framework of the radiation transmission reducing wall structure below the bottom surface of the radiation transmission reducing wall structure with bolts, nuts, and wire ropes as fixing members. In addition, the side shows a framework for connecting another radiation transmission reducing wall structure. In the lower diagram (b), the planting surface is formed on the upper surface, the front surface, the projecting structure upper surface, and the side surface. It is the perspective view which showed that the plant was planted in the glass fiber fabric. In addition, you may choose to open a notch 36 and a through-hole 13 also in a back surface, and to plant a plant.

<Embodiment 86>
According to the 86th embodiment, at least two of the radiation transmission reducing wall structures are connected to the side surface of the same other radiation transmission reducing wall structure. Is a radiation transmission reducing wall structure.
An upper view (a) of FIG. 54 is a perspective view showing an example of this embodiment.
The radiation transmission reduction wall structure can be formed as a single structure that is long in the lateral direction and can be installed at a place where shielding of radiation is desired. However, the width of the radiation transmission reduction wall structure is manufactured at, for example, 3 m. A plurality of units can be connected and installed at locations where radiation shielding is desired. In order to connect a plurality of units, a side wall of each radiation transmission reducing wall structure may be joined to form a horizontally long wall. Alternatively, a method of fixing and connecting the skeletons of adjacent radiation transmission reducing wall structures using a bolt, a nut, a wire rope, or the like of a fixing member may be used. Alternatively, a method may be used in which an I-shaped joint made of aluminum is used to fit a plate material formed on the side surface and fixed with a fixing member such as a screw screw. Alternatively, a method of fixing a plate material formed on the side surface using a perforated metal plate, a bolt, a nut, or the like of a fixing member may be used. Further, the standard and design of the connected radiation transmission reducing wall structure may be arbitrarily designed. It is also possible to select that the constituent members of the radiation transmission reduction wall structure are carried into a place where radiation is desired to be shielded, assembled and completed and installed in the wall structure. Water is injected from the through-holes formed in the completed radiation transmission reducing wall structure, and the water retention base material becomes saturated with water. It is also useful for reduction.

<Other embodiments>
FIG. 14 is a view in which the left and right surfaces of the water retaining base 6 are sandwiched between the water shielding plates 19, and a net 20 is laminated on the surface of the water retaining plate 19. It is the perspective view which showed the structure which was fixed and integrated.
When this structure is used as a wall, it is possible to reduce the transmission of radiation due to the water content of the water-retaining substrate 6, and it is also useful for attaching to a greening structure on the wall surface and growing vines. is there.

The upper diagram (b) of FIG. 15 is a diagram showing a partial cross section of the structure of the lower right diagram (a), and the bolts of the fixing member 16 are connected to the net 20 and the water shield 19 shown on the right. A state in which the nut of the fixing member 16 is tightened by inserting the fixing member 16 into a hole provided as a through hole, penetrating the water impermeable plate 19 and the net 20 on the left side is shown. Note that nuts for preventing external pressure from being applied to the water retention base material 6 located inside the left and right water shielding plates 19 are provided on the inner side surfaces of both the water shielding plates 19.
Further, as shown in a perspective view in the lower diagram (a), this structure has a hollow structure in which a back thin plate and a front thin plate having a large number of through holes are laminated via a plurality of plate-shaped ribs. The plate-like body is used as a water shield 19. Then, the left and right surfaces of the water retaining substrate 6 are sandwiched by the water shielding plates 21, the mesh 20 is laminated on the surface of the water shielding plate 19, and the water retaining substrate 6, the water shielding plate 19, and the net 20 are fixed by the fixing member 16. Are fixed and integrated.
It is preferable to make the water-impervious plate into a hollow plate shape, because it has a heat insulating effect and the strength of this structure increases. And the heat load with respect to the water content of the water retention base material 6 can be reduced, and the heat generation of the structure can be suppressed. In other words, since the drying and evaporation of water and the increase in heat are suppressed, it is preferable for a plant growth environment. Further, since the water retention of the water-retaining base material 6 is improved by the heat insulating effect, it leads to a stable reduction of radiation transmission, which is also preferable in this respect.

FIG. 17 shows a state in which a hollow plate-like body 1 filled with a water retention base material 6 sandwiched between a front thin plate 2 and a back thin plate 3 is provided on the upper surface of the ground 49 contaminated with the lowermost radioactive substance, A hollow culvert plate 22 (corresponding to a specific example of the configuration of the ninth invention) having a plurality of band-shaped through-holes 11 is laminated on the surface thin plate 2, the activated carbon-adhered water-permeable sheet 17 is laminated on the upper surface thereof, and further on the upper surface thereof This shows a structure in which soil 33 has been created and turfgrass 57 has been planted on the top surface. This cross-sectional view shows a state in which the rainfall 92 flows through the activated carbon-adhered water-permeable sheet 17 and falls on the hollow culvert plate 22 so as to reach from the grass surface to the soil.
According to this configuration, the radiation shielding rate is stabilized due to the water content filled in the water retention substrate 6 and the weight (mass) of the water retention substrate 6 and the hollow plate 1. For example, if the thickness of the hollow plate-like body 1 is 10 cm, the total weight of the water-containing and water-retaining base material 6 becomes 100 to 130 kg / m ^2. At this weight, the radiation shielding rate becomes approximately 50%. It is estimated that This weight can be held permanently without being affected by the surrounding environment. Further, the soil laminated on the upper surface has a lot of mineral fibers excellent in water retention, and depending on the thickness of the soil, for example, if the soil is 10 cm, the soil becomes about 140 kg in the saturated state of water content.

That is, the total weight of the weight of the lower hollow plate-like body 1 and the weight of the soil is 240 to 270 kg / m ² . Since it is provided on the upper surface, it is possible to shield the radiation by about 75%. However, the soil weight is not always constant because plants consume the water content of the soil. Therefore, the minimum load (mass) load of the soil weight is a fixed load of only the soil and the culvert when the moisture content is set to 0. Therefore, if the above soil weight is 50 kg, the hollow plate-like body 1 The load obtained by adding the soil weight of 50 kg to the weight of 100 to 130 kg is the fixed load of this configuration. That is, 150 to 180 kg is a fixed load. At this load, it is estimated that the radiation shielding rate will be approximately 60%. However, this value is a value based on the soil water content of 0, and it is more appropriate to obtain a radiation shielding factor that estimates that the water content is added to this value. As described above, this configuration is useful for radiation shielding.
In this configuration, the activated carbon-adhered water-permeable sheet 17 is laminated, and since this activated carbon is a very fine-grained activated carbon having a particle size of 990 μm or less, the effect of adsorbing radioactive substances can be sufficiently expected. Zeolite, which is both a desiccant for a porous body and a fertilizer, may be mixed with the soil. It is expected that the activated carbon or the desiccant adsorbs the radioactive substance emitted from the lowermost ground contaminated with the radioactive substance when passing through the hollow plate-like body 1 and the hollow culvert plate 22. .

FIG. 18 shows a hollow plate 1 provided with a hollow plate 1 corresponding to a specific example of the configuration of the third invention on the upper surface of the ground 49 contaminated with the lowermost radioactive substance, and filled with a water retention substrate 6. The activated carbon-adhered water-permeable sheet 17 was laminated on the upper surface of the surface plate having the strip-shaped through-holes 11 formed in the body 1, soil 33 containing a large amount of mineral fibers was formed on the upper surface, and turfgrass 57 was planted on the uppermost surface. 2 shows a structure. This cross-sectional view shows that the ultrafine-grained activated carbon-adhered water-permeable sheet 17 having a particle size of 990 μm or less is permeated so that the rainfall 92 reaches from the lawn surface to the soil, and is dropped on the hollow plate-like body 1. 3 shows a state in which water is drained as surplus water 58 from an unclosed portion of a partially closed end portion and is flooded in the hollow culvert plate 22. In addition, the edge material 55 is installed on the side surface of the soil 33. In this configuration, the effect of reducing the transmission of radiation emitted from the ground contaminated with radioactive materials is obtained, and wastewater treatment is facilitated when there is heavy rain, etc. It is useful for reconstruction greening. It is also useful because crops can be produced on agricultural land in areas contaminated with radioactive materials.

In the configuration shown in the cross-sectional view of FIG. 19, a hollow plate-shaped body 1 corresponding to a specific example of the configuration of the third invention is provided on the upper surface of the ground 49 contaminated with the lowermost radioactive substance. A plurality of band-shaped through holes 11 are formed in the surface thin plate 2 of the hollow plate-like body 1. On its upper surface, a hollow culvert plate 22 having a back thin plate 3 having a plurality of band-shaped through holes 11 and a front thin plate 2 having a plurality of band-shaped through holes 11 is laminated. On the upper surface of the hollow culvert plate 22, an ultrafine-grained activated carbon-adhered water-permeable sheet 17 having a particle size of 990 μm or less is laminated. A soil 33 containing a large amount of mineral fibers is formed on the upper surface. Turf grass 57 is planted in the soil 33. The rainfall 92 permeates the water-permeable sheet 17 having an ultrafine-grained activated carbon having a particle size of 990 μm or less from the grass surface to the soil, and falls into the hollow culvert plate 22 and the hollow plate-like body 1 laminated in two layers. Then, excess water from the soil 33 is contained in the hollow plate-like body 1. In the hollow culvert plate 22 of the two layers, a hollow culvert plate corresponding to a specific example of the configuration of the fourteenth invention is formed, and all peripheral edges of the hollow culvert plate 22 are closed. Structure. Therefore, water such as rainfall 92 penetrates into the soil 33, and surplus water that cannot retain the soil 33 is stored in the hollow culvert plate 22 existing in the lower layer. When the water in the hollow culvert plate 22 becomes saturated, the excess water is drained from the band-shaped through hole 11 formed in the surface thin plate 2 to the outside of the hollow culvert plate 22 beyond the ribs of the hollow culvert plate 22. However, the amount of water once stored in the hollow culvert plate 22 is maintained.

The amount of water stored in the hollow culvert plate 22 can be calculated from the hollow volume of the hollow culvert plate 22. That is, if the size of the hollow culvert plate 22 is 10 cm and the width of the rib 4 excluding the thickness of the front thin plate 2 and the back thin plate 3 is 10 cm and the width is 1 m square, for example, 0.1 m ³ Can hold water. That is, since the weight of this water is 100 kg / m ² , the transmission of radiation can be reduced to about 50%. According to this configuration, since the hollow culvert plate 2 is stacked in two layers, the transmission of radiation can be reduced to about 25%. When the water content of soil is added to the weight of water retained in the hollow culvert, it is sufficiently conceivable that the transmission of radiation is 20% or less. This configuration, which enables plant cultivation and reduced radiation transmission, is useful for rehabilitation and greening in areas contaminated with radioactive materials. In addition, in consideration of the selection of the plant species that cannot reach the roots grown on the hollow culvert plate 22 and the thickness and the water content of the soil 33, a plant with relatively low water consumption other than turfgrass is selected and used as the soil 33. It is also preferable to plant. Of course, it is also useful for farmland in areas contaminated with radioactive materials.

FIG. 20 is a diagram showing an example of a configuration in which the radiation emission of the decontaminated material contaminated with a radioactive substance is reduced and, at the same time, a green area is formed.
In this configuration, as shown in the cross-sectional view of the upper diagram (a), the hollow plate-like body 1 is provided in the lowermost layer, and the hollow culvert plate 22 is provided on the upper surface thereof. Radiation-emitting wastes 59 (a plurality of bags) are piled up in a region inside the periphery of the plane of the hollow culvert 22. The hollow plate-like body 1 is provided on the upper surface of the radiation-emitting waste 59 placed in a pile, and the hollow culvert plate 22 is laminated on the upper surface. Further, on the upper surface of the hollow culvert plate 22, the ultrafine-grain activated carbon-adhered water-permeable sheet 17 having a particle size of 990 μm or less is laid. On the upper surface, soil 33 containing a large amount of rock wool using blast furnace slag as a raw material is created. The seeds of the turfgrass 57 are sown on the formed soil 33 to make a lawn. Alternatively, plants other than the turfgrass 57 are planted on the soil 33 to complete greening. This greening of the radiation-emitting waste can reduce or completely shield the radiation emission and prevent the radiation-emitting waste from being exposed to the general public. That is, the storage location can be returned to a safe natural environment. In order to prevent the surface of the green space from being adversely affected by the radiation-emitting waste 59, the green surface of the radiation-emitting waste is greened in consideration of the weight of the soil 33 and the weight of the hollow plate-like body 1 having a water-containing function. It is good practice.

In the configuration shown in the figure, the substrate weight on the upper surface of the radiation emitting waste is designed to be 250 kg to 300 kg per square meter. It is estimated that this load will shield the dose from radiation-emitting waste by approximately 90%. In addition, since this green space contains a large amount of rock wool fiber in the soil, the soil is integrated to suppress the occurrence of a separation phenomenon, and the soil is prevented from collapsing and has good drainage. In addition, since the lower layer is provided with the hollow culvert plate 22 which is not destroyed even by the load of the large vehicle, it can withstand the load of the soil which becomes heavy due to the water content, and the excess water is drained from the drainage channel. This green area is useful because the surface of the green area is unlikely to collapse or be washed away by heavy rain, as compared to an embankment green area where the slope angle of only the general soil is large.
FIG. 1A is a cross-sectional view showing a state in which radiation-emitting wastes are piled up, but this configuration is also useful in a storage place where radiation-emitting wastes are not piled up. In this green space configuration, it is also preferable to provide the lowermost hollow plate-shaped body 1 on the upper surface such as the ground contaminated with radioactive substances.

The middle diagram (b) is a cross-sectional view showing a form related to the upper diagram (a). In this configuration, the hollow culvert plate 22 is connected to the through hole of the drain pipe 23 in which at least one band-shaped through hole is formed, and is installed on the upper surface of the soil 33. Radiation-emitting waste 59 (a plurality of bags) is piled up in a region inside the upper surface of the installed hollow culvert plate 22 from the periphery. The hollow plate-like body 1 is provided on the upper surface of the radiation-emitting waste 59 placed in a pile, and the hollow culvert plate 22 is laminated on the upper surface. Further, on the upper surface of the hollow culvert plate 22, a water-permeable sheet 17 having an ultrafine-grained activated carbon having a particle size of 990 μm or less is laid. A soil 33 containing a large amount of mineral fibers is formed on the upper surface. The seeds of the turfgrass 57 are sowed on the created soil 33 so as to be in a lawn state, or plants other than the turfgrass 57 are planted on the soil to complete greening. In this configuration, since the drainage pipe 23 having the band-shaped through-hole is provided, drainage of rainwater or the like from the green ground to the lower soil 33 and further from the hollow culvert plate 22 to the drainage pipe 23 having the band-shaped through-hole becomes smoother. This is preferable because the water flow is guided to the drain pipe connected to the strip-shaped through-hole forming drain pipe 23.

The lower drawing (c) is a cross-sectional view showing a form related to the upper drawing (a) and the intermediate drawing (b). In this configuration, the hollow culvert plate 22 is connected to the through hole of the drain pipe 23 in which at least one band-shaped through hole is formed, and is installed on the upper surface of the radioactive substance contaminated ground 48. Radiation-emitting waste 59 (a plurality of bags) is piled up in a region inside the upper surface of the installed hollow culvert plate 22 from the periphery. The hollow plate-like body 1 is provided on the upper surface of the radiation-emitting waste 59 placed in a pile, and the hollow culvert plate 22 is laminated on the upper surface. Further, on the upper surface of the hollow culvert plate 22, the ultrafine-grain activated carbon-adhered water-permeable sheet 17 having a particle size of 990 μm or less is laid. A soil 33 containing a large amount of mineral fibers is formed on the upper surface. The seeds of the turfgrass are sowed in the created soil 33 to be in a lawn state, or plants other than the turfgrass are planted in the soil to complete greening. This configuration makes the upper surface of the radioactive material-contaminated ground 48 green, further reduces the transmission of radiation emitted from the ground and waste, and additionally provides for the fixation of radioactive material contained in the land.

FIG. 21A is a perspective view showing an example of the configuration of the twenty-first invention. Reference numeral 17 denotes a polyester spunbonded nonwoven fabric having a width of 45 cm and a length of 158 cm (weight per unit area: 40 g / m2). This is a polyester spunbond nonwoven fabric (having a basis weight of 80 g / m2). These two nonwoven fabrics 17 and 17 are heat-welded so that the size of the grid 99 is 60 mm long and 36 mm wide. The number of lattices is 230, and each lattice contains 20 g of zeolite having a particle size of 990 μm or less.
The zeolite may be mixed with a high-molecular-weight water-absorbent resin and ultrafine-grained activated carbon having a particle size of 990 μm or less. Good.

The middle diagram (b) is also a top view showing an example of the configuration of the fortieth invention. The turtle-shaped grid 99 on the upper surface is a biodegradable sheet 87 having a width of 200 cm and a length of 200 cm. Between the sheet 87 and the oblate sheet 88 on the back surface, the seed 34 of the plant is heat-welded at a low temperature together with the biodegradable sheet 87 and the oblate sheet 88. The lower surface has a sheet 17 to which ultrafine activated carbon having a particle size of 990 μm or less is attached. The nonwoven fabric 17 and the sheets 87 and 88 are heat-welded so that the size of the grid 99 is 300 mm long and 300 mm wide. As shown in the cross-sectional view of FIG. 7C, 200 g of zeolite 90 having a particle size of 990 μm or less, 10 g of powder of the high-molecular water-absorbent resin 100 of the water-retaining base material 6, and 500 g of rock wool granular cotton 101 are: It is enclosed.
The number of lattices in which the biodegradable sheet 87 having the seeds 34, the oblate sheet 88 and the nonwoven fabric 17 are bonded is 36. The weight of this constituent sheet is 29 kg in a dry state, and is 54 kg / m ² in a water-saturated state. The weight in the dry state has no problem in workability. Also, this sheet can be cut into a plurality of sheets and used.
This sheet is composed of a water-retaining base material that has both a water-containing material and a porous material that are useful for shielding and fixing radioactive substances present in forests and highway slopes, etc., so that plant seeds can germinate steadily. It is preferable because it can be grown.
In addition, the biodegradable sheet 87 and the oblate sheet 88 have a high rate of decomposition by microorganisms and dissolve in water and convert to soil, so that they do not adversely affect the environment.

The configuration of FIG. 22 is related to FIG. As shown in the cross-sectional view of FIG. 4A, in this configuration, the nonwoven fabric sheet 28 having a resin fiber amount of 12 to 20 g / m ² was on the upper surface, and ultrafine activated carbon having a particle size of 990 μm or less was attached. Sheet 17 is at the bottom. The nonwoven fabric sheet 28 and the lowermost sheet 17 are sewn at the joint 29 to form a bag 32. From the lower layer inside the bag body 32, soil 33 mainly composed of humus is filled, a water retention base material 6 mainly composed of rock wool is laminated on the upper surface, and humus is mainly composed on the upper surface thereof. The soil 33 is laminated, and on the upper surface thereof, a sheet 17 to which ultrafine activated carbon having a particle size of 990 μm or less is attached is further laminated. On the upper surface of the sheet 17, seeds 34 of a plurality of plants are placed in some places.
The bag 32 has a width of 70 cm, a width of 55 cm, and a thickness of 25 cm, and weighs 21 kg in a dry state. Then, when water is injected into the nonwoven fabric sheet 17 on the upper surface of the bag body, the water retention base material 6 and the soil 33 contain water. The weight of the hydrated bag is 120 kg in a saturated state of water. It is presumed that placing this bag on the ground or on the surface of deciduous leaves contaminated by radioactive materials will reduce the radiation shielding rate to 50%, and the seeds of the bag will proliferate. It is also preferable because it can also restore green.

Further, in the configuration example shown in the perspective view of the middle diagram (b), the notch 36 is formed by a cutting tool such as a cutter knife in the nonwoven fabric sheet 28 on the upper surface of the bag body 32 of the upper diagram (a). In the figure, a cutout portion of the nonwoven fabric sheet 28 and a joint portion 29 sewn with a sewing machine or the like are shown so as to be seen. When plant seedlings are planted in the notches 36, the seeds placed in the bag 32 prosper and become grassland, and trees can be grown together in the grassland. For this reason, this configuration is suitable for restoring a variety of green spaces.
When the seedlings planted in the bag 32 grow, the roots penetrate the activated carbon adhering sheet on the lower surface of the bag 32 and extend to the lower layer of the ground, and the aerial part grows as the roots elongate.
The structure of the bag body 32 is characterized in that it has a thickness, and since there is sufficient ventilation and drainage from the peripheral side wall having the thickness, root rot due to a large amount of water content does not occur.

Also, in addition to the soil elements where plant roots grow, carbon, oxygen and nutrients, mineral fiber soil is free of microbial degradation and lasts for a long time, keeping it moist for a long time. It is preferable to put this bag 32 on the upper surface of the fallen leaves.
The planting bag 32 of this configuration can also be used on the slopes of roads that are not contaminated with radioactive material, on the ground of green spaces or forests, or on the upper surfaces of fallen leaves.
The lower drawing (c) is a perspective view of a configuration in which the planting holes 13 are formed by replacing the bag body 32 in the upper drawing (a) and the middle drawing (b) with a packaging body 35. The package 35 is packaged with a nonwoven fabric sheet having a resin fiber content of 12 to 20 g / m ² . The closed portion of the package 35 may be closed with a well-known adhesive, double-sided tape, single-sided tape, or the like. The package base material having this configuration is preferable because it can be inexpensive.

(A) and (b) shown in FIG. 23 show an example of the bag body 32 related to FIG. 22 in a sectional view. Plant seeds 34 are placed between the nonwoven fabric sheet 28, which is the material of the bag, and the soil 33. The lower layer of the soil is laminated with a water retention substrate 6. The water retention substrate is granular wool 101 of rock wool fiber, and its thickness is 15 cm. And, the nonwoven fabric sheet 28 of the bag is shown in the lower layer of the water retention base material.
In the figure shown in (b), the seed 34 of the plant is placed between two nonwoven fabric sheets 28 which are the material of the bag. And the through-hole 13 for planting a plant seedling is opened in two nonwoven fabric sheets. Underneath is a layer of soil that is useful for plant seeds to germinate. The lower layer of the soil layer is laminated with a water retention substrate 6 for storing a large amount of rainfall. The water retention substrate is granular cotton 101 made of rock wool fiber, and has a thickness of 20 cm. And, the nonwoven fabric sheet 28 of the bag is shown in the lower layer of the water retention base material. This bag has a width of 50 cm, a width of 50 cm, a dry weight of 18 kg, and a water content of about 90 l.

That is, the weight of this bag body is 118 kg (saturated with water). This weight is useful because it is estimated that the radiation shielding rate can be suppressed to 50%. Further, since the nonwoven fabric sheet 28 of the upper surface layer is composed of two layers, the water-containing evaporation amount of the water-retaining substrate is also suppressed, which is preferable. In addition, since this bag can realize low cost, it can be widely provided, so that it is preferable. In addition, the feature of this configuration is useful for restoring the “green”, because the seeds and the seedlings of the plant can prosper. Further, an ultrafine-grained activated carbon-attached nonwoven fabric sheet having a particle size of 990 μm or less is laid at a place where the bag body 32 is placed on the ground contaminated with radioactive material. It is preferable to select a method of laying or sowing a mixture of ultrafine-grained activated carbon or zeolite having a particle size of 990 μm or less, or an ultrafine-grained activated carbon or zeolite having a particle size of 990 μm or less. By this method, activated carbon and zeolite adsorb radioactive substances, and it is possible to predict that the radioactive substances adsorbed by the wet weight of the bag are prevented from being scattered or separated by water, and that a radiation shielding effect is also obtained. It is useful because it can. Further, when the culvert board of the ninth invention is placed at the place where the above-mentioned activated carbon and zeolite are sown, and the bags 32 are arranged on the upper surface thereof, the effect of fixing the radioactive substance and shielding the radiation is further increased. preferable. In addition, the bag 32 formed by laminating and forming the culvert plate or plate body of the ninth invention made of a thermoplastic resin having a thickness of 1 mm to 15 mm between the water retention base material 6 and the nonwoven fabric sheet 28 was contaminated with a radioactive substance. Landing is also useful as another embodiment.

In the configuration shown in the top perspective view of FIG. 24, the joint portion 29 of the peripheral portion of the resin fiber woven fabric 68 whose surface is unevenly woven and has water permeability is closed and welded 18 to form the bag body 32. A water inlet 25 is provided at a part of the 18 places of the closure welding at the peripheral edge, and a lid 8 for closing the water inlet after water injection is provided. The inside of the bag body 32 is filled with rock wool fibers made of blast furnace slag as a raw material as a water retention substrate. Rock wool is generally provided on the market for use as a heat insulating material, and has a structure in which air that is essential for heat insulation is present in at least 95% of the volume of rock wool. That is, when water is injected into the rock wool, the water is contained in these voids. Thus, for example, water generally 1 incarcerated in rock wool 1 m ³ are hydrated. The fiber woven fabric of the bag body 32 is a woven fabric made of polyethylene, and its shape is woven in an uneven surface. When seeds of a plant mixed with soil or sand are sown in the uneven shape, or when the seeds are mixed with the soil, a stabilizer, a curing material, and a fertilizer and sprayed with the soil, the seeds are difficult to move in the uneven shape. In other words, the seeds are less likely to run off due to precipitation, and the seeds can easily use the water contained in the water-retaining base material filled therein through the gaps between the fibers of the bag body 32. Preferably, the bag 32 is useful for greening. In addition, since it is expected that a large amount of rain will penetrate into the bag body 32 due to the unevenness, the uneven fabric is preferable for collecting rainfall and sprinkling water.

When the weight of the bag body 32 increases due to water injection or precipitation, a reduction in radiation transmission can be obtained by the load. The bag 32 has an average thickness of 10 cm, a width of 60 cm, and a width of 150 cm, and weighs about 120 kg in a water-containing saturated state. At this weight, it is estimated that the transmittance of radiation is about 50%, but it is preferable to use a plurality of bags in a stacked manner to further reduce the transmittance. This example is an example of a form aimed at shielding radioactivity and restoring greenery.If it is only used for shielding radioactivity, another water-retaining base material that can replace rock wool, which is good for growing plants, is used as a bag. 32 may be filled.
In the middle sectional view (b) and the lower sectional perspective view (c) of the lower part, the water retaining base material layer 6 is laminated from the lower layer inside the bag body 32, and the soil layer 33 is laminated on the upper surface layer. The configuration in which the plant seeds 34 are placed between 33 and the back of the upper fabric 68 is shown. In the case of this configuration example, since the seeds 34 are inside the bag 32, there is no need to sow the seeds at the site where they are used. This is preferable because the operation of sowing the seed is not required.

In the configuration shown in FIG. 25, the drain pipe 23 is buried in a part of the contaminated soil 93, and a strip-shaped through hole is opened on the upper surface of the drain pipe 23. The back plate is left, and the bent end is inserted by cutting the front plate and the rib. The left and right hollow culvert plates 22 are connected to the drain pipe 23, and the hollow plate 21 is provided at a position on the upper surface where the excess water of the rainfall 92 falls from the drain channel 43 to the drain pipe 23. On the upper surface of the hollow plate 21 and the upper surfaces of the left and right hollow culvert plates 22, permeable sheets 17 to which activated carbon is attached are laid, and soil 33 is formed on the upper surface of the sheet, and plants 95 are planted. I have. Further, a water-permeable sheet 17 to which activated carbon is adhered is attached to the outer surface of the drain pipe 23 for the purpose of preventing radioactive substances from entering the inside of the drain pipe 23. The upper diagram (a) is a sectional view of this configuration.

According to this configuration, since the hollow culvert plate 22 is buried in a planar shape, even if there is a rainfall amount such as a guerrilla torrential rain that falls in a short period of time, it does not accumulate on the soil surface having water retention. Drain excess water from the soil smoothly. For this reason, this configuration is also useful for urban infrastructure maintenance because it can prevent a water puddle phenomenon on the ground surface.
Then, it is possible to reduce transmission of radiation radiated from the soil contaminated with radioactive material on the lower surface of the hollow culvert plate 22 to the ground surface due to the load of the soil having water retention and the hollow culvert plate. And even more useful. In addition, the lower drawing (b) is a perspective view showing a state where the hollow culvert plate 22 to which the water-permeable sheet 17 to which activated carbon is adhered is stuck to the drain pipe vertically.

  According to this configuration, radioactive substances floating in the air, radioactive substances attached to rainfall, and other pollutants can be adsorbed. Further, it is useful because the radiation of the radioactive substance can be reduced by the adsorption effect from transmitting to the back surface of the hollow culvert plate 22. Further, in this configuration, the belt-shaped through-holes 11 are formed and provided on the upper surface of the hollow culvert plate 22 to which the water-permeable sheet 17 to which activated carbon is attached is bonded. The sheet 17 is provided on the upper surface of the hollow culvert plate 22 by using a fixing member, by providing a cutout portion in a lateral direction or an oblique direction, and leaving a region below the cutout portion to be filled with soil. When the plants are planted after being stuck and filling the notch with the soil, the plants grow by the drainage effect and the ventilation effect of the hollow culvert 22 and the adsorption effect of activated carbon of the gases released from the roots. Therefore, it is useful including the effect of adsorbing contaminants described above. In this configuration for planting a plant, it is more preferable that the water-permeable sheet 17 to which the activated carbon is attached is also bonded to the back surface where the band-shaped through-holes 11 are not formed.

FIG. 26 is a perspective view showing a configuration example in which the irrigation pipe 15 is provided between the front thin plate 2 and the back thin plate 3 on the upper surface of the hollow culvert plate 22 in the drawing. In this figure, the form before the lid 8 covering the upper part of the irrigation pipe 15 is provided on the upper part of the front thin plate 2 and the back thin plate 3 is shown. This configuration is such that water discharged from the irrigation pipe 15 does not leak outside. The water discharged from the irrigation pipe 15 passes through each of the band-shaped through holes 11 formed at regular intervals in the hollow culvert plate 22, and falls so as to cover the surface of the substantially hollow culvert plate 22. I do. This configuration in which the water is distributed in a planar manner is provided in case the amount of water contained in the water retention base material is reduced, and is also for facilitating water injection into the water retention base material. Useful. The greening of the wall structure having this configuration is useful because the water consumed by the plants can be supplemented when no rain can be expected.

In the configuration shown in the cross-sectional view of FIG. 27, the back surface is provided with the water-containing hollow plate 1 in which no through hole is formed, and on the front side thereof, the hollow culvert plate 22, the activated carbon adhering sheet 17, the soil 33, the water-repellent heat insulating material Forty-two rock wool plate-like members are provided so as to be engaged with the respective side surfaces. On the front surface of the rock wool plate, a non-combustible material 41 having a through hole 12 for planting a plant is opened at the same position as the through hole 12 of the rock wool plate. Further, in order to fix the base material of each layer, a bolt as the fixing member 16 is communicated from the non-combustible material 41 arranged on the frontmost surface to the water-containing hollow plate-shaped body 1 on the back surface, and each of the bolts is a washer and a nut. Attach to the location.
A hollow plate 21 is provided between the activated carbon-adhered sheet 17 and the water-repellent heat insulating material 42, and a bolt of a fixing member is passed through the hollow of the hollow plate 21 to fix the base material of each layer using a washer and a nut. Have been.
With this configuration, the green body having the wall structure can reduce the transmission of radiation due to the weight of the water-containing hollow body 1, the weight of the hollow culvert plate 22, and the weight of the soil containing water. In addition, since the activated carbon adhered sheet 17 is provided, it is also useful for shielding radioactive substances. In addition, activated carbon is mixed in the soil. In addition, since a color pigment is added to the hollow culvert plate 22 and the water-containing hollow plate-like body 1, it is useful because a shielding effect of radioactive substances can be desired.

FIG. 28 is a cross-sectional view of the configuration in which the hollow culvert plate 22 shown in FIG. 27 is omitted.
On the soil side surface of the water-containing hollow plate-shaped body 1 shown in this configuration, a base material having a band-shaped through hole 11 is selected. Therefore, this configuration is preferable because it constitutes a soil structure that requires drainage and air permeability that are indispensable for growing plants.

FIG. 29 is an exploded perspective view showing a part (a) shown in FIG. As described with reference to FIG. 27, this partial view has a plurality of through holes 12 for planting a plant in the incombustible material 41 placed on the front surface. In this example, five planting through holes are provided, but the number is not limited to this number. Although the fixing members 16 are provided at four positions, the number and the positions may be arbitrary. The through hole 12 for planting is also opened at the same position as the front surface of the heat insulating material 42 placed on the back surface. The soil 33 is arranged on the back surface, the activated carbon adhering sheet 17 is provided on the back surface, and the hollow culvert plate 22 having the band-shaped through-holes 11 and the hollow plate member 1 for water containment are arranged on the back surface. . As a form different from FIG. 27, this structure can be implemented in a greening structure in which a material such as resin, metal, or wood is fitted into an outer frame and integrated using a fixture. .
In the configuration shown in the perspective view of the lower figure (b), the metal which is preferable for the growth of vine plants is provided in the through hole 12 opened for planting in the incombustible material 41 provided on the front surface in the configuration of the upper figure (a). A three-dimensional linear support 44 having a three-dimensional rod is fixed with a screw of a fixing member 16, and a support 45 capable of filling soil is fixed by the fixing member 16 diagonally below. According to this configuration, by disposing such two types of pedestals on the front surface of the wall structure, it is possible to plant plants having different forms of vegetation, such as climbing plants and trees. Further, it is possible to plant the flowers on the same surface as the climbing plants and trees, which is preferable in terms of the diversity of the greening wall.

The configuration shown in the cross-sectional view of FIG. 30 is a wall greening structure formed by vertically integrating the structure (a) and the box-shaped structure (b) shown in FIG. This configuration corresponds to a specific example of the configuration of the eighteenth invention, and is configured on the box-shaped side wall (hollow culvert plate 22) of the box-shaped structure (b) and the back surface of the upper structure (a). The water-containing hollow plate 1, the hollow culvert plate 22, and the hollow plate 21 are joined by bolts, nuts, and washers of the fixing member 16. A metal stake 46 provided with rustproofing, which is driven into the ground in the hollow culvert plate 22 on the front and rear sides of the box-shaped body (b), is joined and fixed by bolts of the fixing member 16. Then, the box 33 is filled with soil 33.
The greenery with a wall structure having this configuration is useful because radiation emitted from land contaminated with radioactive material on the back side of the wall can be reduced from transmitting to the front area of the wall. Further, since the soil 33 having this configuration is integrated with the load of the filled box-shaped body (b) and the pile 46, the upper wall greening structure (a) can be prevented from collapsing due to wind or the like. Therefore, it is preferable in terms of ensuring safety. In addition, a middle tree and a high tree can be planted in the box-shaped body (b), so that it is suitable as a greening wall.

In the configuration shown in the cross-sectional view of FIG. 31, the wall-structured green body is installed using the wire rope 51 shown by the constituent material of FIG. According to this installation method, the wire rope 51 is passed through the space between the front and back thin plates, the ribs, and the ribs of the hollow plate 21 formed on the back surface of the greenery with a wall structure, as shown in FIG. Although not shown in the figure, a stainless steel plate, an aluminum plate, or an FRP resin plate may be formed on the outer surface of the front and back thin plates of the hollow plate 21 for reinforcement. Note that the indicated wire rope 51 material is stainless, and its diameter is at least 5mm or more, the diameter of the stainless steel wire rope if the load of the wall structure greening body from 100kg a 150 kg / ^{m 2} is from 7mm It is preferable to configure a 10 mm one. The number of stainless wire ropes may be any number that can support the load of the green wall structure. This installation means is preferable for an independent greening radiation shielding wall and an independent greening wall.

In the configuration shown in the cross-sectional view of FIG. 32, the wall-structured green body is installed using the wire rope 51 shown by the constituent material of FIG. 43. According to this installation method, a connection hole is formed at a predetermined position on a hollow culvert plate 22 having a thickness of 15 mm and a hollow plate-like body 1 having a thickness of 35 mm formed on the back surface of the greenery with a wall structure. A stainless steel wire rope having a diameter of 7 mm is engaged with the U bolt in which a stainless steel U bolt (fixing member 16) is inserted into the connection hole, and the U bolt and the stainless wire rope are connected using a washer and a nut. It is fixed. In addition, the water retention base material 6, the heat insulating plate 42, and the abutment material 41 provided on the front surface of the hollow culvert plate 22 include the hollow culvert plate 22 and the water-containing hollow plate-like body 1 which are provided in the water retention base material 6. Bolts are passed through the hollows of the plate 22 and are fixed to the aforesaid damping material 41 and the water-containing hollow plate 1 on the back with washers and nuts. In addition, a long resin plate or a metal rod provided with a through-hole for connecting the above-described bolt on the back surface of the water-containing hollow plate-shaped body 1 is provided in the vertical or horizontal direction of the green wall structure, and bolts, washers, The wall structure green body may be integrated using a nut.
The number of stainless steel wire ropes, the number of fixing members 16 and the position of connection may be arbitrarily set to the number and positions at which the greenery of the wall structure can support earthquakes and storms. This installation means is preferable for an independent greening radiation shielding wall and an independent greening wall. Further, it can be used for structures other than the above-mentioned applications.

FIG. 33 is a sectional view and a perspective view of the embodiment in which the 55th invention is shown.
In the configuration shown in the top view of the upper diagram (a), the nonwoven fabric sheet 28 is placed as shown in the figure, and the water retention base material 6 is placed on the upper surface of the nonwoven fabric sheet 28 from the substantially central position (indicated by a dotted line) in one side region. Is placed. Joints 29 are provided on the left and right sides, and joints 29 are also provided in places between them. Also, a wound object 31 obtained by winding the water retention substrate 6 placed on the nonwoven fabric sheet 28 shown in the top view (a) so as to have a spiral shape at the end is shown in the middle view (b) as a perspective view. Show. The wound object 31 is formed by folding the nonwoven fabric sheet 28 along a center line indicated by a dotted line in FIG. 9A and winding the folded material around one of the left and right ends. Further, the lower drawing (c) is a cross-sectional view showing the structure of a cross section cut along a vertical plane including the dotted line shown in FIG.

As shown in the sectional view (c) of the half of the scroll, the water retaining base material 6 is sandwiched between the continuous nonwoven fabric sheets 28 at the lower end. This water retention substrate 6 is the water retention substrate 6 shown in FIG. In addition, as shown in the upper diagram (a), the joining portions 29 are arranged in places on the upper part of the water retention base material 6. The water injected from these unjoined portions between the joints 29 penetrates into the lower water retention base material 6 and is hydrated. The bottom of the water retention base material 6 is filled with ultrafine activated carbon having a particle size of 990 μm or less.
For example, the wound object 31 is wound around its outside with a wire rope, a string, a resin adhesive tape, an aluminum resin adhesive tape obtained by laminating a fluororesin film on an aluminum foil, or joined with a fixing member. Or glued with tape. By doing so, the shape of the wound object 31 is maintained. In addition, it is preferable that the diameter of the wound body 31 in which the shape is maintained is manufactured so as to be substantially the same as the diameter of the rainwater penetration mass emitting radiation. By applying a little external pressure to the wound object 31, the wound object 31 can be housed and installed in close contact with the inner wall of the rainwater permeation mass. FIG. 48 is a perspective view showing a state where the wound object 31 is stored.

Further, as the nonwoven fabric sheet 28 of the wound object 31, a nonwoven fabric sheet to which ultrafine activated carbon having a particle size of 990 μm or less is adhered is used. Due to the water retention base material 6, the weight of water contained in the water retention base material 6, and the nonwoven fabric sheet 28, an increase in the dose of radiation emitted from the rainwater permeation mass can be suppressed. The wound object 31 is not limited to the rainwater infiltration mass, and can be installed at a location where water is concentrated, such as a rainwater mass, a gutter, or the like. After the rolled object 31 is stored and installed in the rainwater-penetrating mass or the like, a lid should be installed so as to close the rainwater-penetrated mass or the like in which the rolled material 31 is stored in order to ensure safety for pedestrians and the like. Is desirable.
According to this other embodiment of the present invention, it is also recommended to manufacture the wound body 31 having at least one metal, resin, or ceramic mesh pipe at the center of the wound body 31. When a radioactive gas or other gas is passed through the mesh pipe of the wound body 31 constituting the mesh pipe, the extremely fine activated carbon having a particle size of 990 μm or less provided on the wound body 31 can adsorb the gas, which is useful. Is preferred.

FIG. 34 is an embodiment showing an example of the fifty-seventh invention.
In the configuration shown in the cross-sectional view of FIG. 34, an outer container 65 having a bottom molded from a polyethylene resin to which a black pigment is added, an inner container 66 having a bottom, and a water retention substrate 6 provided in a gap therebetween are provided. The container body is constituted. An inner region of the inner container 66 is used for the radioactive substance storage space 70. On the container lid 69 covering the upper surface of the container main body, the water retention substrate 6 is provided in an upper region of the lid bottom plate of the container lid 69. A water inlet and a lid 25 for closing the water inlet are provided on the upper surface of the container lid 69.
The cross-sectional thickness of the water retention substrate 6 arranged in the gap between the outer container 65 and the inner container 66 is 40 cm. The water retention substrate 6 is a water retention substrate obtained by mixing rock wool granular cotton and ultrafine activated carbon having a particle size of 990 μm or less, and its weight when saturated with water is about 280 kg / m ² . With this weight, the radiation emitted from the radioactive substance stored in the radioactive substance storage space 70 can be prevented from passing through the outer container 65. The cross-sectional thickness of the water retention substrate 6 provided on the container lid 69 is 35 cm / m ² . The total weight of the water-retaining base material 6 having this thickness and the water-containing saturation amount is about 240 kg / m ² . This weight can prevent radiation emitted from the radioactive substance stored in the radioactive substance storage space 70 from passing through the container lid 69. This container may be manufactured by incorporating a material and a molding means selected from the description of [0111] to [0124] which are specific examples of the configuration of the first or second invention.

Further, the material of the container having this configuration is preferably a material that is hardly deteriorated by the influence of hydrogen sulfide resistance, acid rain resistance, industrial drainage hot spring water, and the like. Note that a black container in which any one of a polyethylene resin and a rod having a diameter of carbon fiber or glass fiber of less than 1 mm and a length of 0.7 to 15 mm is added is more preferable because the pressure resistance increases. Select at least one of metal, concrete, reinforced concrete, resin, resin fiber, wood, glass, glass fiber, mineral, mineral fiber, carbon fiber, blast furnace slag fiber, stone, ceramic, rubber, paper, and soil. Alternatively, it is also preferable to form the outer container 65 and the inner container 66 made of a material obtained by combining the above materials. It is also preferable to configure a metal drum in the outer container 65 and the inner container 66. Further, the upper surface shape of the outer container 65 and the inner container 66 having this configuration can be arbitrarily selected such as a square, a polygon, a circle, and an ellipse. Further, the shape of the container lid 69 may be any shape that matches the shapes of the outer container 65 and the inner container 66. The size of the radiation transmission reduction container may be arbitrarily determined in consideration of the size of the contained radioactive substance and the volume of the substance contaminated with the radioactive substance.

According to the fifty-eighth embodiment, the material of the outer container (pipe) and the inner container (pipe) is metal, concrete, reinforced concrete, resin, resin fiber, wood, glass, glass fiber, mineral, mineral fiber, Carbon fiber, blast furnace slag fiber, stone, ceramic, rubber, paper, at least one material selected from the soil, or made of a material obtained by combining the materials,
A bottomless inner container made of a net arranged inside the outer container (pipe) such that the side wall recedes inward from the bottomless outer container (pipe) having a cylindrical or square pipe shape at both ends. Attach an ultrafine-grained activated carbon sheet obtained by adhering or impregnating ultrafine-grained activated carbon having a particle diameter of 1200 μm or less to at least one nonwoven fabric on the net wall surface of the outer container (pipe) side of the pipe) Or prepare,
A pipe in which a gap between the ultrafine-grained activated carbon sheet and the inner side of the outer container (pipe) is filled with ultrafine-grained activated carbon having a particle size of 1200 μm or less, or a blast-furnace slag generated in the case of activated carbon and steelmaking, and a fibrous formed body as a main raw material. The present invention invents a radioactive gas ventilation / adsorption pipe characterized in that said gaps at both ends are closed using a lid or the like and a closing member such as a bolt, nut, washer or the like. It is preferable to design the size of the radioactive gas ventilation adsorption pipe in consideration of the gas adsorption capacity of the activated carbon, the amount of gas to be ventilated into the pipe, the adsorption speed, the mass of the activated carbon, and the like. When the radioactive gas ventilation adsorption pipe is put into practical use, it is preferable to provide an opening provided by connecting a pipe through which gas is passed to the lid. This pipe structure is useful for adsorbing various types of gases and is useful because it can be manufactured at low cost. In the above-mentioned gas adsorption, the blast furnace slag in the pipe may be made to contain water in the fibrous molded body having no water repellency, which is the main raw material. As an advantage of containing water, activated carbon generates heat due to the adsorption phenomenon. Since it is theoretically possible to cool and reduce the heat of adsorption relating to the calorific value, water content is preferable.

In addition, lids are prepared to match the size of both ends of the radioactive gas ventilation adsorption pipe, and after the gap is filled with any of the water retention materials according to the 71st, 72nd or 74th inventions, An embodiment in which a substance contaminated with a radioactive substance is housed inside the inner container, and lids are provided at both ends to seal the radioactive substance is also useful for reducing radiation of the radioactive substance. Further, when the substance contaminated with the radioactive substance is stored and used inside the inner container, the container (pipe) may be placed horizontally, but the installation mode is not limited to the horizontal installation. In addition, it is also preferable that an inlet for water content is opened in the outer container (pipe) and water is injected into the water-retentive base material.

In the configuration shown in the cross-sectional view of FIG. 35, a resin bag containing a radioactive substance contaminant 71 that is contaminated with a radioactive substance and emits radiation is stored inside an outer container 65 formed into a cylindrical shape with concrete. A body 68 (a radiation emission storage bag) is placed on a hollow pedestal 67 made of a hollow resin plate formed in an annular shape. A hollow resin plate is provided below the hollow pedestal 67 and the outer container 65 as an outer and inner lower pedestal 73, and a resin cargo handling table 75 is disposed below the hollow resin plate. The gap between the outer container 65 and the entire pedestal 73 and the bag body 68 inside the pedestal 73 forms a water-containing space including the inner region of the hollow pedestal 67 formed in an annular shape. Is filled with a water retention substrate 6 without any gap. The lid 69 is put on it.
The cross-sectional thickness of the water retention substrate 6 arranged in the water-containing space is 40 cm on average. The water retention substrate 6 is a water retention substrate obtained by mixing rock wool granular cotton and ultrafine activated carbon having a particle size of 990 μm or less, and its weight when saturated with water is about 280 kg / m ² . With this weight (mass), it is possible to prevent radiation emitted from the radioactive substance 71 stored in the radioactive substance storage space 70 from passing through the outer container 65. In addition, the reason why activated carbon, whose physical and chemical adsorption functions are generally well known, is added to the water retention substrate 6 is that carbon is at least useful for shielding radiation. Then, it was presumed that, among the activated carbons, ultrafine activated carbon having a particle size of 990 μm or less was effective in reducing the dose. In addition, a material having an adsorbing function may be selected from the fine-changing carbon containing activated carbon and mixed with the water-retaining substrate, and the mixing ratio of the activated carbon is preferably increased. Further, a material other than rock wool may be selected as the water retention substrate.

In addition, since the container having this configuration is provided on the resin cargo handling table 75, it is preferable for movement and transportation in the storage place.
The top shape or side shape of the outer container 65 having this configuration may be an arbitrary shape such as a square, a polygon, a circle, a rectangle, a pyramid, an ellipse, or an arc having one side of a square. In addition, the outer container 65 is preferably made of the above-described shape using copper, stainless steel, tungsten, alloy, concrete, FRP resin, polyethylene resin, PVC resin, or resin. It is also good. According to the configuration shown in FIG. 62 of the sixty-fourth invention, when a large-sized outer container and an inner container are required, a side wall structure in which a cylindrical side wall is divided into a plurality of parts (divided outer container wall). 111), and the joint surface (side surface) of the manufactured divided side wall structure (divided outer container wall 111) is connected using bolts, caulking, lining, resin material, etc., but as an example, a cylindrical shape is obtained. An outer container having a diameter of about 4.8 m or more and a height of 2 m or more can be manufactured. Also, the inner container wall 112 may be manufactured by dividing the inner container in the same manner as the dividing wall of the outer container. Then, the joint surface of the same inner container wall 112 may be connected by the fixing means described above by the same mounting and assembling method as the outer container.

The hollow pedestal 67 shown in this perspective view has a width of 5 m, a length of 6 m, and a thickness of 35 mm, and a plurality of pieces are fitted to form a large plate. This hollow pedestal is a hollow plate having a plurality of plate-shaped ribs between the front thin plate and the back thin plate, and the space surrounded by the front thin plate, the back thin plate, and the plate-like rib is filled with the water retention substrate 6 containing activated carbon. It is useful to reduce the penetration of radiation emitted downward from the radioactive substance 71 stored in the radioactive substance storage space 70 by containing water. A resin-made hollow plate having weather resistance is preferable because it is lightweight and inexpensive.
Since the average thickness of the water retention material of the large outer container and the inner container can be 50 cm or more, the radiation released from the radioactive substance 71 stored in the radioactive substance storage space 70 after being hydrated is reduced by the outer container 65. Can be prevented from being transmitted. That is, the basis for preventing permeation is that when a water-containing base material of a dry substance designed with a thickness of 50 cm is made to absorb water, the load per square meter becomes 600 kg when the load of the water-holding base material and the saturated load containing water are added. Also, using any one of the radiation transmission reducing constituent base materials of the first to fifteenth inventions having the fitting of the sixteenth invention shown in FIG. 16 and the joint of the seventeenth invention shown in FIG. Making large outer and inner containers can be recommended as an example. Also, as shown in the perspective view of FIG. 62, a resin hollow plate having no through holes formed in the front and back thin plates of the hollow plate shown in FIG. The hollow pedestal 67 is preferable because it is excellent in weather resistance and can be reduced in cost. Further, the shape of the outer and inner containers may be a container in which the walls at both ends of a generally popular U-shaped side groove are closed. Further, the material for forming the lid 69 is not limited to, for example, metal, concrete, resin, and the like. It is also preferable to configure a plurality of water retention base materials for the outer container and the inner container. In order to manufacture a large lid, it is preferable that the lid is divided and connected in the same manner as the divided outer inner container wall 111. Further, it is preferable that at least one water inlet is provided in the large lid. The shape of the lid 69 may be any shape as long as it matches the shape of the outer container 65. The size of the radiation transmission reduction container is determined by the volume of the radioactive substance contained in the bag 68 or the substance contaminated with the radioactive substance, and the space between the bag 68 and the outer container 65 and the pedestal 73. It may be arbitrarily determined in consideration of the size matching the space.

The configuration shown in the cross-sectional view of FIG. 36 includes an outer container 65 having a bottom formed of resin, and an inner container 66 having no bottom formed of resin. An inner container lower pedestal 72 made of a hollow resin plate is provided at the bottom of the inner container 66. Then, in the gap between the outer container 65 having a bottom and the inner container 66 having no bottom, and the gap between the inner container lower pedestal 72 and the outer container 65, mixed fine wool of rock wool and ultrafine activated carbon having a particle size of 990 μm or less are mixed. The water retention base material 6 is provided. The inner area of the inner container 66 is used as a radioactive substance storage space 70. Further, a container lid 69 for closing the upper part of the container is provided, and in the upper region of the lid bottom plate of the container lid 69, a water-retaining substrate 6 in which rock wool granular cotton and ultrafine-grained activated carbon having a particle size of 990 μm or less are mixed. Provided. A water inlet and a lid 25 for closing the water inlet are provided on the upper surface of the container lid 69.
The outer container 65 having this configuration has a circular upper surface shape, and the inner container 66 has a cylindrical shape. The shape of the container lid 69 is a circle that matches the shape of the outer container 65. The pedestal 72 is provided with a circular resin plate matched to the shape of the inner container 65. The shapes of the outer container 65, the inner container 66, and the container lid 69 are merely examples, and are not limited. Further, the shape of the container lid 69 may be any shape as long as it matches the shape of the outer container 65. The size of the radiation transmission reduction container is determined by the volume of the radioactive material stored inside the inner container, the volume of the substance contaminated with the radioactive material, and the gap between the inner container 66 and the inner container lower pedestal 72 and the outer container 65. What is necessary is just to determine arbitrarily in consideration of the size matched with a certain water-containing space.

The cross-sectional thickness of the water retention base material 6 in the gap between the outer container 65 and the inner container 66 and the gap between the outer container 65 and the pedestal 72 is 40 cm. The water retention substrate 6 is a water retention substrate obtained by mixing rock wool granular cotton and ultrafine activated carbon having a particle size of 990 μm or less, and its weight when saturated with water is about 280 kg / m ² . With this weight, it is possible to prevent radiation emitted from the radioactive substance stored in the radioactive substance storage space from passing through the outer container. The cross-sectional thickness of the water retention substrate 6 provided on the container lid 69 is 35 cm / m ² . The total weight of the water-retaining base material 6 of this thickness and the water-containing saturation amount is about 240 kg / m ² . This weight is useful because it is possible to prevent radiation emitted from the radioactive substance stored in the radioactive substance storage space 70 from passing through the container lid 69. Activated carbon, which is generally known to have a physical adsorption function, is added to the water-retaining substrate 6 because carbon is at least useful for shielding radiation. And, among the activated carbons, the ultrafine activated carbon having a particle size of 990 μm or less is expected to be particularly effective for shielding the dose.

In the configuration shown in the cross-sectional view of FIG. 37, a resin-made radioactive substance contaminant 71 that is contaminated with a radioactive substance and emits radiation is accommodated inside an outer container 65 formed into a cylindrical shape with a polyethylene resin. A bag 68 (radiation emission material storage bag) is placed on a hollow pedestal 67 in which a hollow resin plate is formed in an annular shape. Under the hollow base 67 and the outer container 65, hollow resin plates are provided as outer and inner lower bases 73. A resin cargo handling table 75 is placed underneath. Further, in the gap between the inside of the outer container 65 and the upper surface of the pedestal 73 to the outside of the radiation emission storage bag 68, a water-containing space is formed, including the inner region of the hollow pedestal 67 formed in an annular shape, This space is filled with a water retention substrate 6 without any gap. There is further provided a lid 69 for covering it. The lid 69 has the water retention substrate 6 on the inside, and further includes a water inlet 25 connecting the space where the water retention substrate 6 is arranged and the outside world, and a lid 25 for closing the water inlet 25. ing.

The cross-sectional thickness of the water retention base material 6 arranged in the gap between the outer container 65, the bag body 68 and the hollow pedestal 73 is 40 cm on average. The water retention substrate 6 is a water retention substrate obtained by mixing rock wool granular cotton and ultrafine activated carbon having a particle size of 990 μm or less, and its weight when saturated with water is about 280 kg / m ² . With this weight structure, it is possible to prevent radiation emitted from the radioactive substance stored in the radioactive substance storage space 70 from passing through the outer container. Activated carbon, which is generally known to have a physical adsorption function, is added to the water-retaining substrate 6 because a specific activated carbon is at least effective for shielding radiation. And, among activated carbons, ultrafine activated carbon having a particle size of 990 μm or less is effective for shielding dose.
Further, since the component container is provided on the resin cargo handling table 75, it is preferable for movement and transportation in the storage place.

In the configuration shown in the cross-sectional view of FIG. 38, a water-blocking sheet 76 is provided on the upper surface of the outer and inner lower pedestals 73 of the configuration of FIG. It is preferable to lay the water-impervious sheet 76 to prevent the water falling from the upper part from flowing out from below the outer container 65 and from the pedestal 73. As in this configuration, the water-blocking sheet 76 may be employed in another radiation transmission reduction container.

In the configuration shown in FIG. 39, a substantially square outer and inner lower pedestal 73 is provided on a substantially square resin cargo handling table 75, and on the pedestal 73, the inside of the outer container 65 and the upper surface of the pedestal 73 are provided. The water retention base material 6 is provided so as to be sandwiched by a gap between the water retention base material and the outside of the inner container 66. In the space inside the inner container 66, a radioactive substance contaminant storage bag 77 is placed as a radioactive substance storage space 70. The shapes of the resin cargo handling table 75 and the outer and inner lower pedestals 73 are examples, and are not limited to the shapes shown in the drawings. The upper figure (a) is a top view of the container with the container lid 69 removed, and the lower figure (b) is an overall perspective view.
Also, an outer and inner lower pedestal 73 is provided on the resin cargo handling table 75, and the outer container 65 and a part of the left and right sides of the pedestal 73 are fixed on the pedestal 73 by the fixing member 16. ing. The water-retaining material 6 is provided between the inside of the outer container 65 and the gap between the upper surface of the pedestal 73 and the outside of the inner container 66. A radioactive substance contaminant storage bag 77 is placed in the radioactive substance storage space 70 inside the inner container 66. The container lid 69 covering the upper part is provided with the water retention base material 6. It is preferable that the left and right portions of the outer container 65 and the pedestal 73 are fixed by the fixing member 16 in this manner, since the collapse of the container can be prevented. It is desirable to fix at least two points as the fixing points. Further, as this fixing tool, a fixing tool for detachably fixing the outer container 65 and the pedestal 73 is preferable.

In the configuration shown in the cross-sectional view of FIG. 40, U bolts are fixed to the left and right upper surfaces of the outer and inner lower pedestals 73 made of fiber reinforced plastic using nuts. A hanging rope 74 made of a wire rope is passed through the U-bolt, and is firmly fixed with a wire clip for connecting the wire rope so as not to fall off the U-bolt. And
A bottomless outer container 65 integrally formed in a cylindrical shape with resin is placed on the pedestal 73. Inside the outer container 65, an inner container 66 made of resin and having no bottom is disposed, and an inner container lower pedestal 72 made of a hollow resin plate is provided at a lower end thereof. In the gap between the pedestal 73 and the outer container 65, and between the inner container lower pedestal 72 and the inner container 66, there is provided a water retention substrate 6 in which rock wool granular cotton and ultrafine activated carbon having a particle size of 990 μm or less are mixed. Have been. The space between the outer container 65 and the pedestal 73 and the space between the inner container 66 and the pedestal 72 may or may not be fixed to each other by adhesion or the like. The inner region of the inner container 66 is used as a radioactive substance storage space 70. Further, as shown in the upper part of the figure, a container lid 69 for covering the upper part of the container body part shown in the lower part of the figure is further provided. In the container lid 69, a water-retaining base material 6 in which rock wool granular cotton and ultrafine-grained activated carbon having a particle size of 990 μm or less are mixed is provided in an upper region of the lid bottom plate. In addition, a water inlet and a lid 25 that closes the water inlet are provided on the upper surface of the container lid 69.

This configuration is an example, and for example, the water-impervious sheet shown in FIG. 38 may be laid on the upper surfaces of the outer and inner lower pedestals 73. It is also preferable to lay the water-impervious sheet in contact with the upper surface of the inner container lower pedestal 72 and the periphery of the inner lower end of the inner container 66. In addition, the suspension string 74 is fixed to at least two places, but it is more preferable to attach the suspension string to the pedestal 73 at a plurality of places and fix it. In addition, this configuration is preferable because the radiation transmission reducing container can be suspended and moved using a heavy machine such as a crane.
Further, with respect to the outer container 65 and the inner container 66 having this configuration, for example, if the diameter of the outer container 65 is 150 cm and the diameter of the inner container 66 is 90 cm, the water retention substrate 6 has a thickness of 30 cm. And it is also possible to make it 10 m in height. In this case, the shape of the outer container 65 and the inner container 66 is preferably cylindrical. It should be noted that a container having this height can also be used for a fort wall shown in FIG. 45 described later. Further, a plurality of radioactive substance contaminant storage bags can be stacked in this container, and a configuration in which the radiation transmission reduction containers shown in the respective figures are laid down and lids are provided at both ends is also preferable. In addition, when using the radiation transmission reduction container lying on its side, it is preferable to provide a water inlet on the upper surface of the outer container. FIG. 61 which shows an example in a perspective view is recommended. In addition, since the outer container can be expected to move left and right when it is cylindrical, it is recommended to provide a pedestal or the like for fixing the outer container.

In the configuration of FIG. 41, the water retention base material 6 is filled in a block-shaped body 24 that is a kind of container, and the water injection port 25 provided for injecting water into the water retention base material 6 is provided with a block. It is formed in the shape body 24. The water inlet 25 is provided with a lid, and the water inlet can be closed with the lid after the water has been injected into the water retention substrate 6. Further, a configuration in which the block-like bodies 24 are stacked on a foundation like a concrete block wall is shown in FIG. As shown in the perspective view of FIG. 3C, a concrete foundation 27 incorporating a reinforcing bar is provided from underground to the ground, and another reinforcing bar 26 is tied to the reinforcing bar 26 incorporated in the concrete foundation 27 with a line or the like. . Then, the reinforcing bar 26 is inserted into the hollow portion of the block-shaped body 24. The block-like bodies 24 stacked in the same manner as the concrete block wall in this way can be useful in a place where collapse is prevented and radiation shielding is required. In addition, the weight of the block-shaped body 24 in the water-saturated state is 17 to 20 kg per piece. That is, when the block-like body 24 is a wall structure, it is useful for shielding radiation. The mortar is filled in the cavity of the block-shaped body 24. Thereby, the load of the wall structure increases. Further, it is preferable that the block-like body 24 is made of a fiber-reinforced plastic, or a PVC resin molding or a polycarbonate resin molding because it has good weather resistance and high strength.
Further, the block-shaped body 24 is provided with a lid at a water inlet 25. FIG. 2B is a cross-sectional view taken along a dotted line shown in FIG. As shown in this cross-sectional view, the room filled with the water retention base material 6 is divided into three by the rib wall 4, and each is filled with the water retention base material 6. The ribs 4 enhance the strength of the block-shaped body 24. However, such a structure is an example, and the block-shaped body 24 is not limited to this structure.

In the configuration shown in the cross-sectional view of FIG. 42A (a), the exploded view of the middle drawing (b) and the lower drawing (c) of FIG. The box 37 shown in the developed view of FIG. 1 is formed, and the inside thereof is filled with the water retention base material 6. According to this configuration, a black pigment is selected as a resin raw material as an additive in order to obtain weather resistance at the stage of manufacturing the hollow plate 21 in which a polypropylene resin is used as a forming raw material. An aluminum foil is further bonded to the surface of the black hollow plate 21 having weather resistance to further improve the weather resistance. Further, one through hole 12 is formed in the center of the hollow plate 21. The through hole 12 is opened for the purpose of water injection, and the hollow plate 21 having a through hole shape formed by using an electric tool is fitted into the hollow portion when the water retaining base 6 is completely filled with water. It is advisable to glue the hollow and the surrounding surface with tape. Further, as shown in FIG. 2B, the hollow plate 21 is folded, and the closing member 10 to which the adhesive tape is adhered is adhered between the side wall and the flat portion to form the box-like body 37. .

Before the hollow plate 21 is formed in the box-shaped body 37, the water-retaining base material 6 filled in the bag 34 is placed in the box-shaped body 37, and each bent portion is bent. Is formed on the box-like body 37 by bonding an upper end portion (joining portion 29) of the base member with an adhesive tape.
The water contained in the water retention substrate 6 inside the hollow plate 21 does not easily leak from the closed hollow plate 21 and is useful as a radiation transmission reduction substrate. Further, the hollow plate 21 is preferable because the front thin plate, the back thin plate, and the ribs are integrally formed, so that the hollow plate 21 withstands an external pressure such as a load. In general, the finished color of a molded product using polypropylene resin as a molding raw material is translucent, so the effect of reducing the transmission of radiation cannot be expected, but the added pigment is a dark color such as black, green, or blue. It is useful for reducing radiation transmission. Further, in this configuration, the box-shaped material for storing the water retention substrate 6 is the hollow plate 21, but this is an example, and the present invention is not limited to the hollow plate 21. , The number of through-holes 12 may be plural. Further, a form in which the through hole 21 is omitted may be used. In addition to the adhesive tape that forms the box-like body 37, the box-like body 37 may be formed by joining the hollow plates with heat welding or rivets.

FIG. 43 is a cross-sectional view of an example showing a configuration in which a wall greening structure having an effect of reducing transmission of radiation is installed on a foundation. This structure corresponds to a specific example of the structure of the seventy-ninth invention. As shown in the perspective view of the upper diagram (a), the left and right H steels 50 are fixed to the concrete foundation 27. In this H steel 50, a wire rope 51 having an end portion fixed to a terminal nut 53 is used to connect a bolt of a fixing member to a through hole of the H steel having a through hole opened at a predetermined position near the tip of the terminal nut. The through-holes that are open are fitted together and fixed with nuts. A virtual greening structure 54 indicated by a dotted line is fixed to the two wire ropes by the fixing member 16.
The lower drawing (b) is a perspective view showing a form in which the wire ropes 51 are crossed and fixed in order to reinforce the strength in the upper drawing (a).
By configuring the wire rope 51, the terminal nut 53, the H steel 50, and the concrete foundation 27 as shown in FIG. (A) or (b), installation and installation of the wall greening structure according to the forty-eighth invention is easy. This form is useful.
FIG. 31 (a) is a cross-sectional view showing a structure in which a structure corresponding to a specific example of the wall greening structure according to the forty-eighth aspect of the present invention is mounted and installed on the structure of FIG. 43. A hollow plate 22 is formed on the rear surface of the wall greening structure so that the longitudinal direction of the rib is horizontal. The wire rope 51 described with reference to FIG. 43 is passed between the ribs. The non-woven fabric is coated with a heat shielding paint on the back surface of the hollow plate 22 to prevent the resin from being deteriorated by ultraviolet rays. Have been. The use of this heat-shielding paint is an example.In addition, in order to prevent ultraviolet rays and increase the strength, a fire prevention or non-combustion, flame-retardant sheet or a metal plate, concrete plate, resin plate, etc. is bonded to a part of the hollow plate. May be.
FIG. 31B is a partial cross-sectional view illustrating a state where the wire rope 51 is passed through the hollow plate 22. This configuration is an example, and the mounting method of the wall greening structure is not limited to this.

The configuration shown in the upper diagram (a) of FIG. 44 is shown in FIG. 21, FIG. 22, and FIG. 24 on the ground 39 of the forest where radioactive materials are attached and emitting radiation, underground, defoliation, and undergrowth. While the bag body 32 described above is placed, water is injected or sprinkled into each of the water retention materials, so that radiation is radiated to the forest ground 39, the ground, the leaves, the surface of the undergrowth, and the air on the upper surface thereof. It is possible to reduce what is done. In this bag 32, a plant obtained by planting a seedling of a plant, a plant capable of germinating seeds, a plant in which seeds and a seedling grow in the bag 32 together, or a product merely hydrated in the water retention base material , There are various specifications. According to this configuration, it is possible to shield the dose and restore the forest, which is useful for maintaining a green environment.
By wrapping the bag 32 or the sheet base material of the fifty-fifth invention around the trunk of the tree, it is useful for reducing the radiation dose of the radioactive substance attached to the tree. Further, the above-mentioned bag body 32 and sheet base material are preferable because they can be widely used for reducing radiation contaminated with a radioactive substance such as a telephone pole, for example. As an example, it may be used for the slope of the road shown in FIG. Note that the hollow culvert plate of the ninth invention may be provided on the lower surface of the bag body 32 having this configuration. To add the base material, a plurality of through holes for driving a resin stake into the hollow culvert plate are opened, the stake is passed through the through hole, and the hollow culvert plate is fixed to the top surface of the soil. Then, the bag body 32 may be fixed to the hollow culvert plate by an arbitrary fixing method. Providing a hollow culvert plate is preferable because it has a drainage effect and reduces the transmission of radiation emitted from radioactive substances adhering to soil or grass.

In the configuration of the perspective view of FIG. 45, H steels 50 are driven into the ground at the four corners of the outer area where a plurality of radiation-emitting wastes 59 are stored or on the ground other than the four corners, and each H steel is As described in FIG. 43, wire ropes are attached to a plurality of H steels between the H steels. Fixing members eyebolts and nuts for fixing the attached wire rope and the hydrated hollow plate-shaped body 1 are attached to predetermined positions of the hydrated hollow plate-shaped body 1. Then, the wire-containing hollow plate-like body 1 is passed through the eyebolt ring fixed to the water-containing hollow plate-like body 1 serving as a wall, and the water-containing hollow plate-like body 1 is fitted with no gap therebetween, thereby forming the standing wall. A radiation emission storage fort 62 having a structure can be constructed. In addition, a water-containing hollow plate-shaped door 60 for management is attached to the radiation emission storage fort 62 by a hinge.
Since the height of the water-containing hollow plate-shaped body 1 used for the radiation emission material storage fort 62 can be selected from 2 m to 6 m and the thickness is 30 mm or more, it is possible to construct a wall having an effect of reducing radiation transmission. Is possible. For example, the thickness of the plate is set to 25 cm in order to reduce the transmission of radiation to about 80%. Then, the weight of the water-containing saturated state becomes 250 kg / m ² . This wall weight is useful because the radiation of the radiation emitting waste 59 can be considerably shielded. However, since the radiation from the stored radiation-emitting waste 59 may pass through the radiation-emitting material storage fort 62, the radiation-emitting material shielding cover sheet 61 shown in FIG. It is more preferable to cover the upper surface of the waste 59 because it prevents upward radiation. Although not shown in the drawing, a roof in which the water-containing hollow plate-shaped body of the present invention is formed in a size matching the size of the radiation emission storage fort may be constructed in the radiation emission storage fort 62. Good. That is, beams and columns (H steel) that are indispensable for structural strength are preferably designed and constructed by calculating from structural calculations. In addition, a plate having a form in which a nonflammable sheet is bonded to the soil on the upper surface of the base material according to the ninth invention is attached to the front side and the roof of the radiation emitting material storage fort 62 to construct a green wall. This is preferable since the appearance can be made natural.
The lower drawing (b) shows a configuration in which the water-containing hollow plate-like body 1 is laid on the ground surface inside the area inside the radiation emission storage fort 62 and the ground surface close to the outside in the configuration shown in the upper drawing (a). FIG. An irrigation pipe 15 is attached to the top surface of the water-containing hollow plate 1. The function of the irrigation pipe 15 is a spare base material structure for stopping the scattering of radioactive substances when there is a possibility that the radioactive substance may be scattered by a strong wind or the like, and the present invention is not limited to this.

FIG. 46 is a perspective view showing how the wound object 31 shown in FIG. 33 (b) is installed inside the rainwater infiltration mass 63. Reference numeral 12 denotes a through hole formed in a general rainwater penetration mass 63. Reference numeral 64 denotes a rainwater penetration mass connection pipe. Reference numeral 8 denotes a lid of the rainwater penetration mass 63. If the land in the vicinity of the rainwater infiltration mass 63 is contaminated with radioactive material, rainwater flowing down the land moves the radioactive material into the perforated underground drainage pipe 64 connected to the rainwater infiltration mass 63. It is expected to be. The radioactive material that has flowed along with the water into the perforated underground drainage pipe 64 moves to the rainwater infiltration mass 63, and adheres to and is deposited on the soil or stone or the rainwater infiltration mass 63 near the mass 63. Is also expected. Therefore, it is expected that the rainwater infiltration mass 63, the rainwater mass, and the gutter, which are accumulated by the radioactive material flowing from the nearby land, are turned into a contaminated area. The value of the radiation dose of the radioactive substance thus accumulated should be higher than the surrounding average value. It is useful to place the wound object 31 in the rainwater-penetrating mass 63 because the radiation dose passing through the lid 8 of the rainwater-penetrating mass 63 can be reduced.

FIG. 47 is a cross-sectional view showing that a rooftop greening area 84 exists on the rooftop 80 of the building. A waterproof layer is formed on the frame of the rooftop greening area 84. A heat insulating material layer is provided on the upper surface of the waterproof layer. The plate of the ninth invention, which is manufactured by foam injection molding, also has a heat insulating effect and is laid on this heat insulating material layer. On the upper surface thereof, a turf (an area of 100 m ² ) as an example of the thirty-fifth invention is made up of rock wool soil having water retention. The thickness of this soil is 15 cm, the saturated water content is 130 liters per square meter, and the total weight of the soil structure is 200 kg (water saturated). An underground irrigation tube 83 is provided in the soil of the turf. The water source of the underground irrigation tube 83 is a rainfall 89 which falls on the surface (100 m ² ) of a rainwater collecting plate 78 provided on a roof 85 located on a building one floor higher than the rooftop. The rainwater collecting plate 78 is the rainwater collecting plate 78 of the hollow culvert plate 22 having a plurality of band-shaped through holes according to the ninth invention. As shown in the figure, a rainfall collecting plate 78 is provided on the upper surface of the base 86 installed in an inclined shape. The drainage pipe 23 having a band-shaped through-hole is connected to the low end face of the rain water collecting plate 78 provided on the inclined surface. The drain pipe 23 is connected to a rain water flow pipe 79 and connected to a rain water storage tank 81 provided on the roof. A floating switch electric water pump 82 is provided inside the rain water storage tank 81. A watering pipe 15 is provided between the floating switch electric water pumping pump 82 and the watering tube 83 buried in the grassy soil of the rooftop greening area 84, and water is passed from the pump 82 to the watering tube 83. It has been made like that. In addition, the operation mechanism of the floating switch electric water pumping pump 82 is such that the floating switch is automatically activated when the rainwater passed from the rain collecting plate 78 is stored in the rain water storage tank 81 and reaches a certain amount of water storage. And has a mechanical function of operating the electric motor of the electric water pumping pump 82. When the amount of water stored in the rain water storage tank 81 does not reach a certain amount, the electric motor of the electric water pumping pump 82 does not operate.

According to this rainwater irrigation system, for example, when the above-mentioned soil water content is 50% (1 sq., 65 liters), if there is 30 mm of rainfall, the rainfall of 30 mm on the turf is additionally water-containing in the soil. Almost all of the rainfall of 30 mm that has fallen on the rain collecting plate 78 is retained by the rainwater from the irrigation drip tube 83 buried in the turf through the hydraulic pressure of the motor of the floating switch electric water pump 82. Excellent soil is uniformly flooded. In other words, the water amount obtained by adding the rainfall amount retained on the turf and the rainfall amount falling on the rainwater collecting plate 78 is retained on the green ground, so that the rainwater collecting plate 78, the belt-shaped through-hole forming drainage pipe 23, the drainage water, By connecting and connecting the pipe 23, the rain water storage tank 81, the floating switch electric water pumping pump 82, the irrigation pipe 15, and the irrigation drip tube 83 using a joint base material and a fixing member, etc., it is possible to utilize rain resources, which is useful. is there. In addition, a pop-up sprinkler that requires water pressure can be provided instead of the irrigation drip tube 83. Further, the rain collecting plate 78 can be replaced with a solar power generation panel. This greenery system using rainfall is practically useful if it is provided on the roof of a building or on the surface of the ground that is contaminated with radioactive materials, because it can reduce radiation transmission. In addition to the greening, it is also preferable to select and install, for example, the thirty-sixth invention on the rooftop or on the ground contaminated with radioactive materials. Since the rainwater use irrigation method is also useful for general greening, if the rainwater collecting plate 78 can be installed in a confined place on the green space, it can be used regardless of the rooftop or the ground surface. preferable.

According to the sectional view shown in FIG. 47 (b), a wall greening structure 54 is installed in a self-supporting manner on a ground 49 which is contaminated with radioactive material. The self-supporting wall greening structure 54 is provided with the radiation transmission reducing wall structure 116 according to the 80th to 86th inventions having a length of 30 m. In addition, a water-saturated load of 1 square meter is applied to a front region where 10 radiation-reduction reducing wall structures 116 each having a water-saturated load of 1800 kg (3 m wide, 0.7 m wide, and 1.5 m high) are connected. A radiation transmission reducing base material 117 of 200 kg and a soil structure thickness of 15 cm is provided in 500 m ² . The radiation transmission reducing component base material 117 is formed of a lawn. Also, the rain collecting plate 78, the belt-shaped through-hole forming drainage pipe 23, the drainage pipe 23, the rainfall storage tank 81, the floating switch electric water pumping pump 82, the irrigation pipe 15, the irrigation drip, which are also configured in FIG. The tube 83 is connected and connected to the radiation transmission reducing wall structure 116 and the radiation transmission reducing constituent base material 117. The radiation transmission reducing wall structure 116 configured as described above can obtain an effect of reducing radiation transmission from a neighboring land, and the water-containing weight of the radiation transmission reducing component 117 and the dose shielding effect of the component can be combined. This is preferable because an effect of reducing radiation transmission from the ground 49 contaminated with the radioactive substance due to the above can be obtained. The phenomenon in which children whose exercise and play are restricted become obese in school yards and gardens where radioactive substances remain after decontamination is remarkably manifested. If a growing child becomes obese, there is a concern that the child will develop adult illness in the future. Providing such schoolyards and gardens with lawns that have a shielding effect can restore the time of exercise and play that stimulates the senses to children who are national treasures and human treasures. Useful.

<87th embodiment>
The embodiment shown in FIG. 64 is a water-repellent heat insulating molded into a rectangular parallelepiped having a thickness of 15 cm, a width of 90 cm, and a width of 60 cm by attaching a resin to countless fibers mainly composed of blast furnace slag generated during iron making. FIG. 4 is a perspective view showing that a granular activated carbon having a thickness of 5 cm, a width of 80 cm, and a width of 50 cm is filled in a space area inside a material 42. In addition, the fine activated carbon having a particle size of 990 μm or less is selected.

Further, a cross-sectional structure cut along a dotted line connecting between (A) and (A) (A) and (A) shown in the figure is shown as a cross-sectional view in FIG. A cross-sectional structure cut rearward by a dotted line connecting between (c) and (c) shown in the cross-sectional view of FIG. (B) is shown in a top view of FIG. Further, in the inner regions of the water shields 42a, 42b, 42c, and 42d shown in the top view of FIG. 3C, a space region having a thickness of 5 cm, a width of 80 cm, and a width of 50 cm for filling with activated carbon is formed. Then, the inside of the space region is filled with activated carbon having a particle size of 990 μm or less. A water-repellent heat insulating material 42 having a thickness of 5 cm, a width of 90 cm, and a width of 60 cm is provided on the upper surfaces of the water shields 42a, 42b, 42c, and 42d and the filled activated carbon shown in FIG. According to this embodiment, the water-repellent heat insulating material 42 forms three layers in the thickness direction. Each water-repellent heat insulating material 42 stacked in the thickness direction is bonded with a resin-based adhesive.

Further, as an example of the means for manufacturing the invention, a mold that matches the size to be manufactured is formed, and resin or water, cement, and rock wool granular cotton are mixed on the bottom and side surfaces of the inner region of the mold. Filled with rock wool granulated cotton for molding, and filled with activated carbon or zeolite in the inner area on the bottom and side surfaces, filled with rock wool granulated for molding on the upper part, and topped with rock crimped cotton The present invention is completed by applying a load to the substrate and pressing it, and drying it immediately after the pressing, and removing the mold after drying. Although such a manufacturing means is preferable because the manufacturing cost is low, the manufacturing method is not limited. Further, the sizes shown in the above-described drawings are examples, and the present invention is not limited to these sizes. Although the present invention depends on the production environment, it adsorbs gas and suspended particulates in the atmosphere, so it is preferable to pack it in paper or a resin bag immediately after production. It is preferable because the quality of the invention is ensured by packing.

In addition, the shape of the present invention is also a cube, such as a square, a circle, and an ellipse, a rectangular parallelepiped, a triangular pyramid, a quadrangular pyramid, a column, a disk, a plate, and a sphere, and any shape and a manufacturing method are selected. Is also good. The gas-phase structure provided with activated carbon and rock wool fiber using a resin according to the present invention is preferable because it can be presumed that it is also useful for adsorbing radioactive gas. Further, it can be inferred that the gas phase structure provided with the activated carbon and zeolite of the present invention is useful for reducing shielding of dose. In addition, water may be contained in a part or all of the gas-phase structure comprising the activated carbon of the present invention. The water-containing present invention reduces radiation transmission of a radioactive substance by adding water which is a compound of hydrogen and oxygen. Can be inferred to be useful. According to another embodiment of the present invention, any one of the inventions described in the 53rd or 54th invention, or at least one nonwoven fabric is attached or impregnated with ultrafine activated carbon having a particle size of 990 μm or less. A non-woven fabric in a form in which the non-woven fabric is folded or laminated in a plurality of sheets, a paper in a form in which a paper sheet in which zeolite is attached or impregnated on at least one paper or in a form in which a plurality of sheets are laminated, is selected. It is also preferable to produce a gas-phase structure by replacing activated carbon and zeolite that fill a partially void region inside any one of a fiber molded body, a glass fiber molded body, and a ceramic fiber molded body mainly composed of blast furnace slag. . The outer shape of the present invention is a cube, a rectangular parallelepiped is installed between the floor and the ceiling near the inner wall of a building that stores radioactive material, the storage cube, the storage body surface of the present invention is disposed on the inner side of the building wall than the rectangular solid It is useful to select a plate-shaped body and install it using a fixing member because it can be used as a building inner wall structure with reduced radioactive material transmission.

<70th embodiment>
In an embodiment of the seventieth invention, after the water-holding base material according to any one of the fifty-seventh to sixty-sixth inventions is filled in the gap, water is injected into the water-holding base material to contain the water-holding base material. After water injection, a radiation transmission reduction effect is exhibited, which is preferable. Injection of water into the water-retentive substrate is an embodiment of the present invention as well as all of the present invention.

<Seventy-first embodiment>
In an embodiment of the seventy-first aspect, the water-retaining base material is a mineral fiber, a mineral fiber molded product, a resin fiber, a resin fiber molded product, a glass fiber, a glass fiber molded product, a carbon fiber, a carbon fiber molded product, a ceramic fiber, Ceramic fiber molded products, micro-shaped carbon, paper, newsprint, paperboard, superabsorbent polymer resins, humus, non-woven fabric, cloth, cotton, plant fine powder, grains, salt, sweeteners, wood, soil, wax, pulp, Mineral powder, seaweed powder, algae, blast furnace slag powder, steel slag, sand, sodium chloride, barium, fertilizer, feed, mulch, volcanic ash, barium sulfate colloid solution, paraffin, cellulose, activated carbon, charcoal, plaster, Cement, color sand, minerals, sponges, desiccants, pigments, sacran (preservatives), preservatives, resin pellets, resins, superabsorbent polymer resin adhered to or impregnated into fibers A first to 70 or 73, 75 to 90 which is at least one of a woven fabric, a nonwoven fabric having at least one nonwoven fabric adhered or impregnated with a fine carbon having a particle size of 1200 μm or less, or a fiber. 5. The radiation transmission reducing constituent substrate according to any one of the above aspects.
One or a plurality of the water-retaining base materials may be selected and filled in a predetermined portion of the invention according to any one of the first to 70th or 73th and the 75th to 90th aspects. The water content of the selected water-retentive substrate exerts an effect on radiation transmission reduction. In addition, the adsorption of radioactive substances according to the qualities of the water-retaining substrate, and the water-retaining substrate is preferable because it is predicted that the shielding reduction effect will be exhibited.

<72nd embodiment>
In an embodiment of the seventy-second aspect, the mineral fiber molded body is rock wool granular cotton or rock wool granular cotton perforated bag packaging, rock wool plate or rock wool plate perforated bag packaging, Rock wool felt or a rock wool felt perforated bag package, the radiation transmission reducing constituent substrate according to any one of 1 to 70 or 73 to 90, wherein the glass fiber is glass wool. Since it was presumed that a form in which countless minute voids are permanently retained is useful for the radiation transmission reducing effect, rock wool and the like in this form are preferable.

<Thirty-third embodiment>
An embodiment of the seventy-third invention is a polyethylene resin sheet or a bag made of a polyethylene resin film, a two-layer structure of a polyethylene resin film in which the surface of the bag is a polyethylene resin sheet and the back surface has a plurality of holes. Any one of the bag bodies is filled with the water retention base material of any one of the seventy-first and seventy-second inventions, and the bag body has at least one or more water inlets. The present invention is preferable because it is determined that the effect of reducing radiation transmission can be obtained at low cost.

<74th embodiment>
An embodiment of the seventy-fourth aspect of the invention is that the water-retentive base material has a shape stabilizer (polyethylene glycol), an oil, an aqueous solution of molybdic acid, a colloidal solution of barium sulfate, an epoxy resin, sodium tungstate, a gel-like liquid, a varnish, ethanol, The radiation transmission reducing constituent substrate according to any one of the first to 73th or 75 to 90 inventions, wherein any one of a surfactant, a fluorinated surfactant or a solution having a large mass is injected into the water retaining substrate. When this material is selected from the materials and injected into the water-retaining substrate, it is preferable for reducing radiation transmission.

<75th embodiment>
FIG. 63 In this embodiment, the upper diagram (a) is a perspective view showing an example of this embodiment.
Also, the middle diagram (b) is a perspective view showing a dotted line connecting a and b in the upper diagram (a) in a cross section.
The water shield shown in the lower layer of the figure is provided with a rock wool rectangular parallelepiped that has been subjected to a water-repellent treatment with resin in an inner region of a water shield sheet 76 covering the surface. In the water-repellent treatment, a resin is used to form a rectangular parallelepiped and to prevent water from entering from outside.
The lower surface, the front surface, the side surface, the rear surface, and the upper surface of the rectangular parallelepiped of the rock wool fiber are covered with a rubberized cloth sheet obtained by laminating fluororubber, aramid fiber, and aluminum foil. This rubberized cloth sheet is useful for shielding radiation since it has heat resistance of 200 to 250 ° C. and insulation properties depending on the conditions of the installation place.
In addition, the rectangular solid of rock wool is covered and packaged with a rubberized cloth sheet.In this packaging, the rectangular solid of rubberized cloth sheet and the rectangular solid of rock wool are bonded using a polyvinyl chloride tape, a waterproof airtight tape, and an adhesive. Sealed and sealed. It is also preferable to bond the same end portions of the coated and wrapped rubberized cloth sheets by heat fusion. In addition, as a method of hermetically sealing the water-impervious sheet 76 constituting the water-impervious body, any wrapping means other than the above-described wrapping means may be selected.

In the middle-layer impermeable body, granular wool 101 of rock wool is formed in the inner area of the impermeable sheet 76 covering the surface and has substantially the same size as the rectangular parallelepiped of the lower and upper impermeable bodies. The rectangular parallelepiped formed by the rock wool granular cotton 101 is provided inside a rubberized cloth bag body 32 formed by pressing a polyester base cloth, which is a water-blocking sheet 76, and chloroprem rubber.
Since the rubber-coated cloth bag body 32 is excellent in water pressure resistance, water does not leak from the bag body 32 even if the rock wool granular cotton 101 of the water-retaining base material 6 is impregnated. preferable. The end face of the same rubberized cloth bag body 32 is bonded by heat fusion to form the bag body 32. In addition, a water injection hole 25 for water injection is opened in the sealed bag 32. The water injection hole may be formed with a notch so that a water injection hose can be injected. Then, after the water injection into the rock wool granular cotton 101 is completed, if the water injection hole or the cutout forming portion is closed using a polyvinyl chloride tape, a waterproof airtight tape or a rubberized cloth sheet, the water content of the water retention substrate 6 does not decrease. It is preferred.

The upper layer is the same as the lower layer. As shown in the figure, the three water impervious bodies are fixedly packed using a stainless steel wire rope with a dedicated wire clip for fixing the wire rope, screw screws, or the like.
As described above, the factor of the reduction of radioactive material permeation of the packaging body 35 covered with the water-resistant rubber sheet formed in the upper layer and the lower layer is due to the fluorocarbon rubber having the insulating property and the aramid fiber having the heat resistance, and the volume of about 35%. A middle layer in which a rock wool molded rectangular parallelepiped in which 90% of the fibers are made of a mineral material having a fine void structure and subjected to a water-repellent treatment, and a rock wool granular cotton 101 rectangular parallelepiped are filled inside a water-blocking bag. By integrating the water shields provided in the above, the gas phase state in which the upper and lower structural layers of the integrated packaging structure do not move can be maintained. Then, in the middle layer, a structure capable of holding a water layer with no motion is formed. That is, it is useful because it can be inferred that reduction of radioactive material permeation can be obtained by the present invention that retains a gas rectangular solid having a small amount of water vapor and a water-containing layer having oxygen. In addition, a total load of 133 kg, which is a combination of the upper layer and lower layer impervious body load of 16 kg, the middle layer dry water retention substrate load of 20 kg, and the water-containing saturated load of 97 kg, is useful for increasing the reduction rate of radioactive material permeation. The size of the united body of the three water shields is 60 cm in width, 90 cm in width, and 60 cm in height. It is theoretically predicted that the transmittance of gamma rays, which is radiation having high transparency, is suppressed to about 50% with a weight of 133 kg formed by stacking the water shields shown in the figure. In addition, since it has shielding elements such as a gas phase layer, a heat insulating layer, and an insulating layer other than the shielding factor caused by the load, it is estimated that the transmission of the gamma ray is suppressed more than the general effect of reducing the transmission of the gamma ray caused by the load. Is done.

In addition, according to the configuration of the cross-sectional view shown in FIG. (C), the impermeable body arranged in the lower layer is the same as the impermeable body configured in the upper and lower layers shown in the upper figures (a) and (b). However, a sheet 17 to which microfine activated carbon having a particle size of 990 μm or less is adhered and arranged inside a rock wool molded rectangular solid in which mineral fibers have been subjected to a water-repellent treatment.
Further, the impermeable body arranged in the upper layer is the same as the impermeable body of the middle layer shown in the above figures (a) and (b). Then, as shown in the figure, the two water shields are fixedly packed using a stainless steel wire rope with a dedicated wire clip for fixing the wire rope, screw screws, or the like. Each of the water shields may be individually attached to the surface of the water shield facing each other when fixedly packed with the wire rope, wire clip, screw screw, or the like using an adhesive, an adhesive, or a front and back adhesive tape. In addition, as another means for fixing the multi-layer impermeable body, any one of the plate body, the hollow plate, and the hollow culvert plate of the ninth invention is applied to the outer surface of the multi-layer impermeable body. It is preferable to form a unitary structure using the fixing member in a concatenated manner. By selecting this fixing means, the effect of reducing the transmission of the radioactive substance of the ninth invention is synergistically exerted, which is useful for increasing the rate of reduction of the transmission of the radioactive substance of the invention, which is preferable.

A total load of 125 kg, which is a combination of the lower layer impermeable body load of 8 kg, the middle layer dry water-retentive base material load of 20 kg, and the water-containing saturated load of 97 kg, is useful for increasing the radioactive substance transmission reduction rate. It is theoretically predicted that the load due to the two-layer impermeable structure shown in the figure can suppress the transmittance of gamma rays, which is radiation having high transparency, to about 50%. In addition, since there are shielding composite elements such as a gas phase layer, a heat insulating layer, an insulating layer, and a carbon layer other than the shielding factor caused by the load, the gamma ray transmission is suppressed more than the general gamma ray transmission reduction effect caused by the load. It is supposed to be.

When the gas-phase structure according to the 87th aspect is selected and replaced with a gas-phase body or a liquid-phase body packed with the water-impervious sheet of the present invention, or packed with a bag made of the water-impervious sheet, radioactive This is preferable because the effect of reducing the permeation of the substance is considered to increase.

Further, the material constituting is not particularly limited, for example, a water-impervious sheet for packaging, a bag made of a water-impervious sheet, a rubber-coated cloth sheet obtained by pressing a fluoro rubber and an aramid fiber base cloth, Rubberized cloth sheet made by pressing rubber, aramid fiber base cloth and aluminum foil base cloth, glass fiber woven fabric, aluminum foil, aluminum fluororesin sheet made by press bonding with aluminum foil base cloth and fluororesin film, rubber and aluminum A rubber-coated cloth made by pressing a foil base cloth, a glass fiber woven cloth, a rubber-coated cloth sheet formed by pressing a nylon base cloth and rubber, a rubber-coated cloth sheet formed by pressing a nylon base cloth, a thermoplastic polyurethane elastomer and rubber, Rubberized cloth sheet obtained by pressing polyester base cloth and thermoplastic polyurethane elastomer and rubber, and rubber sheet obtained by pressing aramid fiber and silicon rubber It is good to select any one of a drawing sheet, a rubber drawing sheet formed by pressing a polyester base cloth and polyethylene rubber or chloroprene rubber, or a polyethylene resin sheet. The present invention in the form of a plurality of layers is also preferable.
In addition, a method of manufacturing and stacking arbitrary shapes such as a cube, a rectangular parallelepiped, a triangular pyramid, a quadrangular pyramid, a column, a disk, and a plate may be selected as the shape of the present invention.

Hollow plate-like body for water 1
Table sheet 2
Back thin plate 3
Rib 4
Water-containing space 5
Water retention base material 6
Packaging water retention base material 7
Lid 8
Lid bottom plate 8-A
Closed end face 9
Closure member 10
Belt-shaped through hole 11
Through hole 12
Planting hole 13
Perforated rib 14
Irrigation piping 15
Fixing member 16
Activated carbon attached water-permeable sheet 17
Closure welding 18
Water barrier 19
Net 20
Hollow plate 21
Hollow culvert 22
Strip-shaped through-hole forming drainage pipe 23
Block 24
Water inlet and lid 25
Reinforcing bars 26
Concrete foundation 27
Nonwoven sheet 28
Joint 29
Spiral 30
Wound object 31
Bag 32
Soil 33
Plant seeds 34
Package 35
Notch 36
Box 37
Development 38
Forest ground 39
Tree 40
Incombustible materials, flame retardant materials, disaster prevention materials 41
Water repellent insulation 42
Fitting 43
3D linear cradle 44
Cradle 45
Pile 46
Bottom base plate 47
Bottom plate drain hole 48
Radioactive contaminated ground 49
H steel 50
Wire rope 51
Drain gutter 52
Terminal nut / bolt 53
Green wall structure 54
Edge material 55
Ditch 56
Lawn grass 57
Surplus water 58
Radiation emission waste 59
Hollow plate door 60
Radiation emission shielding coating sheet 61
Radiation Emission Storage Fort 62
Rainwater seepage measure 63
Rainwater infiltration basin connection piping 64
Outer container 65
Inner container 66
Hollow pedestal 67
Radiation emission storage bag 68
Container lid 69
Radioactive substance storage space 70
Radioactive contaminants 71
Inner container lower pedestal 72
Outer and inner lower pedestal 73
Hanging string 74
Loading table 75
Impermeable sheet 76
Radioactive material contamination storage bag 77
Rain collecting plate 78
Rainwater piping 79
Rooftop 80
Rainwater storage tank 81
Floating Switch Electric Water Pump Pump 82
Underground irrigation tube 83
Rooftop greening area 84
Building roof or roof 85
Pedestal 86
Biodegradable sheet 87
Oblate sheet 88
Linear joint 89
Zeolite 90
Roadway 91
Rainfall 92
Radioactively contaminated soil 93
Road slope 94
Plant 95
Drainage channel 96
Convex surface 97
Water storage 98
Grid 99
Polymer water-absorbing resin 100
Rockwool granular cotton 101
Aggregate 102
Iron plate 103
Cushion material 104
Support material 105
Net disaster prevention sheet 106
Concrete base material 107
Waterway 108
Heavy load 109
Resin-added pigment colors (dark blue, blue, green, black, gray, purple, brown, red) 110
Split outer container wall 111
Split inner container wall 112
Gutter 113
Masu 114
Water storage tank 115
Radiation transmission reduction wall structure 116
Radiation transmission reduction base material 117
Gas phase part 118
Liquid phase part 119
Activated carbon 120

Claims (3)

The rain catch plate is located away from the soil layer,
The rain collecting plate is installed in a state inclined with respect to a horizontal plane, and a rain collecting plate on which rain water falls, and a drain pipe installed below the rain collecting plate and receiving rainwater flowing on the rain collecting plate. A water storage tank for storing rainwater received by the drain pipe, an irrigation tube and / or a sprinkler provided in a soil layer, and a rainwater stored in the water storage tank for the irrigation tube and / or the sprinkler. An electric water pump that conveys the water to the storage tank, and a detection device that operates when the amount of rainwater stored in the water storage tank increases.The rainwater stored in the water storage tank exceeds a predetermined water storage amount. When the electric water pump is operated, water is supplied to the pipe connected to the electric water pump to automatically irrigate the soil layer or the soil surface. Automatic rainfall irrigation system characterized by the following. The rain water collecting plate is a empty plate body within that are stacked through a plurality of flat ribs Table sheet and the back sheet are substantially parallel to the installation, of the back sheet and the table sheet 2. The automatic rainfall and irrigation system according to claim 1, wherein a plurality of through-holes or belt-shaped through-holes are formed in any one of the plurality of through-holes. 3. The automatic rainfall irrigation system according to claim 1, wherein the rainwater collecting plate is a solar power generation panel.