JP4918322B2 - Sloped block - Google Patents

Description

The present invention relates to a porous concrete slope tension block having a planting function, in particular high strength 18N / mm ^2, the continuous porosity 18-25% permeability of 0.8~3.0cm / sec It has a coefficient, and high planting function relates to a high degree of shore protection function slope lined block with (also referred to as a flat tension block).

The loose gradient seawall checkerboard pattern arranged termed flat block and slopes clad blocks, embankment method is known which is adapted to protect the slope. In addition, in this embankment method, there is an example of a planting pot provided for the purpose of environmental protection and improvement of aesthetics. Considering the influence of microorganisms that inhabit the revetment, in recent years, some sloped blocks are made of porous concrete.

  Patents relating to conventional sloped blocks made of porous concrete include examples such as JP 09-003937, JP 2914914, JP 2005-68867, JP 2005-68868, JP 2000-328574, and the like. There is.

  Japanese Patent Application Laid-Open No. 09-003937 is a flat block that facilitates planting by appropriately arranging a plurality of porous materials and block through holes in ordinary concrete.

  This is porous because it uses a porous material and has a through hole in the block body, but unlike porous concrete manufactured with gaps between aggregates, it cannot actively grow microorganisms. .

  Japanese Patent No. 2914914 is a vegetation concrete block formed by combining a porous concrete base for planting and a fake stone group made of ordinary concrete, and the porous concrete portion between the fake stone groups is a planting zone. It is. The porous concrete part has a structure with a cut hole for planting to reach the embankment ground.

  However, a recent disaster case revealed that this kind of block surface has a through-hole that reaches the ground, so that in the event of a flood, a large amount of backside soil is sucked out from this through-hole, causing the breakage of the dike. That is, during flooding, when the water volume increases and high-speed flow passes through the slope surface, the ground soil is sucked out through the through hole, and the block structure is eventually destroyed. As a result, this type of sloped block eliminates the space created between the back of the block and the embankment ground, and is called the leveled concrete between the revetment slope and the lawn block at the construction stage. Construction methods that are reinforced with batting concrete must be used as standard. However, if this is realized, there will be a problem that the ground and the surface become discontinuous, and the planting environment is significantly hindered.

  In Japanese Patent No. 2914914, in order to eliminate the space generated between the back surface of the block and the embankment ground described above, it is possible to adjust the height of the bottom surface of the concrete block and the ground by filling the ground and the back surface with leveled concrete. It is characterized by setting. However, in this case, the through hole is blocked by the lower concrete, and the planting function during drying and the continuity of the ecosystem are also blocked here. It is.

Japanese Patent Application Laid-Open No. 2005-68867 and Japanese Patent Application Laid-Open No. 2005-68868 provide a frame with convex ribs and concave ribs in the periphery, and a part of the aggregate having a density of 3.5 or more is used for porous concrete constituting the base, The production technique of the vegetation tension block which aimed at the improvement of the unit mass of the porous concrete product is shown, and it is assumed that the strength characteristic is a design target value of at least 10 N / mm ² . However, there is no description of a manufacturing method capable of producing a strength of at least 10 N / mm ^{2, and} a strength of about 10 N / mm ² is insufficient. From many examples, this value needs to be 18 N / mm ² (Japanese Industrial Standard) or more. However, a technique for stably producing a strength of 18 N / mm ² or more has not been established in the ordinary porous concrete manufacturing technique. Furthermore, this type of structure with a frame around it cannot prevent the loss of surface soil during floods, even if the water flow is slow. Furthermore, this method does not give consideration to the leveled concrete provided in the lower layer.

  In JP-A-2001-59231, the porosity is set to 20 to 35%, and the inside of the void is impregnated with a water retention slurry to form a greening base. However, it is unclear whether this porosity refers to all voids including independent voids or continuous voids. The strength characteristics required for durability of this type of block for river revetment, the essential quality characteristics such as continuous porosity and hydraulic conductivity that indicate the planting function are unknown. This application is characterized in that the water retaining slurry is impregnated in the void in advance. In addition to the fact that the water-retaining environment is naturally formed, if the soil is spread on the surface of the lawn block even at the higher part of the flood bed, the subsequent aging accumulates the sediment in the void, which is useful for this application. There is doubt about sex.

  JP 2000-328574 advocates the performance of greening concrete with the name of porous concrete, and the physical properties of the porous concrete base have an uneven surface to be soiled on the surface of the vegetation base. It is arranged in a wavy and continuous manner, and the concave portion is used as a planting pot. However, in this type of form, there is a drawback that most of the earth and sand in the depression is lost due to running water or rainfall during flooding. In addition, there are no measures or considerations for reinforced concrete applied to the lower layer of the block.

As understood from the above, in the case of sloped blocks made of porous concrete, especially porous concrete, strength, continuous porosity and water permeability are important factors as the quality of porous concrete, and When a planting pot is provided, it is necessary to consider the dry season and the sediment runoff. In addition, care must be taken so that the ground soil is not sucked out during floods.
Japanese Patent Application Laid-Open No. 09-003937, page 1, FIG. Japanese Patent No. 2914914, page 1, FIG. Japanese Patent Laying-Open No. 2005-68867, page 1, FIG. Japanese Patent Laying-Open No. 2005-68868, page 1, FIG. JP 2000-328574 A, page 1, FIG.

  The present invention is made of porous concrete, has a planting pot that is deep and has good water retention capacity, and does not allow planting soil to flow out in the case of normal heavy rain, and allows ground soil to flow out even during floods. The purpose is to provide a sloped block that has a high level of planting function and a high level retaining wall function. To do.

The present invention for solving the above problems has a planting function in which leveled concrete is laid on the revetment ground, and a large number of sloped blocks are laid on the leveled concrete in a grid pattern. a law surface tension blocks, a planar substrate, the lower surface co Once embedded in the leveling the concrete has a leg and you contact with the ground, accomplishing the planting function the bottomed holes you open to the surface via the substrate provided on the leg as planting pots for, wherein at the bottom of the bottomed hole portion can be water flow relative to the ground, soil has a sediment outflow prevention member is not Rukoto to flow out, the base and the leg compression strength 18N / mm ² or more, 18 to 25% continuous porosity, the permeability 0.8~3.0cm / sec It is formed by integrally molding with porous concrete. Regarding the water permeability, 0.8 to 3.0 cm / sec is a manageable and useful value, but more preferably 0.8 to 2.5 cm / sec.

  Regarding the water permeability, 0.8 to 3.0 cm / sec is a preferable environment for the void structure desired as the plant-compatible porous concrete as the continuous void ratio and the void diameter are larger. However, if the continuous porosity, pore diameter, and hydraulic conductivity are set large, it will be difficult to guarantee the strength, and the construction of the revetment main body will cause a siphon phenomenon that is sucked out during flooding, which may cause disasters. This is because it has sex and is not appropriate. Naturally, it is desirable that the hydraulic conductivity is small for disaster prevention, but it is still possible to allow the porosity and hydraulic conductivity to the extent possible for environmental revetment materials that can coexist with nature such as plants, soil microorganisms, and small animals. The required compressive strength can also be satisfied. From the damage cases so far, if the hydraulic conductivity is 0.8-3.0 cm / sec, the proper greening function and securing of the ecosystem can be protected, and there is no suction or runoff of the earth and sand. There were no disaster cases. Therefore, a water permeability coefficient of 0.8 to 3.0 cm / sec is a necessary condition for an environmental revetment block having an appropriate filter effect.

A compressive strength of 18 N / mm ² or more is a strength necessary for embankment slope because the base is formed in a flat plate shape with a thickness of about 15 to 20 cm. In the present invention, as planting pots for implementing the planting function, since the leg is provided with a bottom hole you open to the surface via the substrate, the depth of the leg in the depth of the base body Is added to make a deep planting pot, sufficiently holding the planting soil, and less likely to drain the planting soil due to heavy rain. Moreover, since the circumference | surroundings of a base | substrate and a planting pot are porous concrete with a continuous porosity of 18-25%, a water retention function is high and a planting function improves specially with the propagation of microorganisms in porous concrete. If earth and sand are sprayed inside the voids, this is brought into the space of the porous concrete block, and the same effect as when the slurry is impregnated can be obtained. The same effect can be obtained naturally by river water mixed with earth and sand that flows on the surface when water is sprayed without spreading earth and sand. Therefore, it is possible to spread earth and sand only to the part higher than the flood bed.

Furthermore, planting pot a bottomed hole portion, but the bottom of the bottomed hole portion can be water flow relative to the ground, because it has a sediment outflow prevention member is not Rukoto drained sediment, There is no fear that a large amount of running water will flow along the embankment slope due to floods such as typhoon season, and even if all soil for planting is washed away, the soil of the ground will be sucked out. By the way, there were cases in which the floods sucked out the ground soil through planting pots (siphon phenomenon) by Bernoulli's theorem and collapsed the embankment slope. Planting pots Runode be contacted with the soil through a sediment discharge prevention member, it can be sucked out of the soil moisture, it can also be in a dry time by increasing the planting function to keep the wet planting pot .

  As the earth and sand outflow prevention member, a fine net-like material such as a net or a woven fabric can be used, but it can also be realized by using porous concrete integrally formed with the base and the leg. If the earth and sand outflow prevention member is made of porous concrete, the entire structure can be integrally molded easily, inexpensively, and with high strength by providing an earth and sand outflow prevention function.

It is preferable that an opening area of the hole is 5 to 25% with respect to the surface area of the base body, and the leg body is provided at one place per 0.25 m ² of the surface area of the base body. The opening area at one location is within 300 cm ² , preferably within 200 cm ^2, and is provided alone or in several locations depending on the block area.

These conditions are necessary to give a good planting function including the landscape. That is, the opening area of the planting pot is too small below 5% and too wide above 25%. Further, when viewed from the entire surface, it is optimal to 0.25 m ² per one place. A greening revetment controlled to an appropriate scale can be created by combining the area of the opening and the arrangement pattern.

Furthermore, the base body and leg are integrated, so deep planting pot through those portions are formed, when planting compatible plants opening area formed the plant roots into the interior voids of the porous concrete poured Therefore, the soil inside the pot and the flat concrete flat block main body are securely grip-fixed, and as a result, the planting zone will not be lost even in the case of a flood with a flow rate of about 6-8 m / sec. The revetment slope can be entirely covered with greenery by distributed installation of openings and selection of plant types adapted to this.

According to the sloped block of the present invention, since it has a compressive strength of 18 N / mm ² or more, a strong embankment slope can be constructed.

In slope-clad block of the present invention, as planting pots for implementing the planting function, since the leg is provided with a bottom hole you open to the surface via the substrate, the depth of the base body It becomes a deep planting pot that just adds the depth of the legs, and it has a low risk of draining the planting soil due to heavy rain, etc. by sufficiently holding the planting soil. Moreover, since the surroundings of the planting pot is porous concrete having a continuous porosity of 18 to 25% and a water permeability of 0.8 to 3.0 cm / sec, the water retention function is high, accompanied by the propagation of microorganisms in the porous concrete. The planting function is improved. Porous concrete has a hydraulic conductivity of 0.8-3.0 cm / sec, avoids excessive water absorption, creates a sufficient microbial habitat, and allows moisture to flow between the soil under the planting pot. Can be planned. If you want to keep the slurry, you can spread the earth and sand, narrow the eyes by absorbing the earth and sand at the time of flooding, you can also improve the water retention function.

Furthermore, planting pot a bottomed hole portion, although its bottom is possible moisture distribution with respect to the ground, because it has a sediment outflow prevention member is not Rukoto drained sediment, and planting pot Moisture can be circulated with the ground, and soil moisture can be called into the planting pot during the dry season. Therefore, the plant can be grown without withering even during the dry season. Moreover, even if a large amount of flowing water flows along the embankment slope due to a flood such as a typhoon season, even if all the soil for planting is washed away, the soil of the ground is not sucked out. That is, the embankment slope has no siphon effect, resists flooding, and is highly durable.

  As the earth and sand outflow prevention member, a fine mesh-like material such as a net, a woven fabric or the like can be used in one layer or multiple layers. If porous concrete is formed integrally with the base body and the leg body, an earth and sand outflow prevention function is provided. Therefore, the whole can be integrally molded easily, inexpensively and with high strength.

The opening area of the hole is 5 to 25% with respect to the surface area of the substrate. For example, if one leg is provided per 0.25 m ² of the surface area of the substrate, good planting including scenery is possible. Can have a function.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS The best mode for carrying out the present invention will be described below with reference to the accompanying drawings. FIGS. 1A and 1B are a plan view and a side view of a porous concrete manufacturing surface covering block according to an embodiment of the present invention, and FIGS. 2 and 3 are fine aggregates used for blending the porous concrete and FIG. 4 is an explanatory diagram showing a method for manufacturing the sloped block, and FIG. 5 is a sectional explanatory view of a bank embankment formed by laying the sloped block.

FIG. 1 (a), (b), the slope-clad block 1 according to an embodiment of the present invention, the plane (FIG. 1 (a)) of the saw in dimensionally A × B (A = B) square, and the base body 2 of rectangular when viewed from the side, and a Ruashitai 3 to protrude toward from the center at its lower surface downward, the circular hole of planting through the substrate 2 and the leg 3 (planting (Also called a pot) 4 is provided. The dimension of A and B is about 40 cm.

When the diameter of the surface of the hole 4 for planting is D1 cm (for example, 13 cm), the diameter of the bottom is D2 (for example, 5 cm, D2 <D1), and the total depth is the depth L1 of the base body and the leg 3 The depth is obtained by subtracting a thickness d of about 2 to 7 cm from the sum of the depth L2 of the portion. As for the outer shape of the leg body, when the upper dimension is C, the bottom dimension is D (C> D) and the frustoconical shape is shown in the example, but this may be trapezoidal.

  The sloped block 1 having the above-described shape is integrally molded with porous concrete PC together with the base 2, the leg 3, and the bottom 3 b of the leg 3.

With the goal of ensuring the durability of the structure, the compressive strength of the porous concrete PC is 18 N / mm ² or more, and an appropriate greening function is ensured. In addition, the continuous porosity is set to 18-25% and the permeability coefficient is set to 0.8-2.5 cm / sec as the target quality in order to support the improvement of the microbial habitat environment and the prevention of suction of earth and sand on the embankment slope during flooding. did. And the formulation for obtaining these qualities was defined, and the manufacturing method of the product by this formulation was established as follows.

As shown in Table 1, the optimum Vm / Vs (Vm is Vm / Vs) as a basic composition for obtaining a continuous porosity of 18 to 25%, a water permeability of 0.8 to 1.5 cm / sec, and a compressive strength of 18 N / mm ² or more. Obtaining the relationship of the absolute volume of mortar, Vs is the absolute volume of fine aggregate), the formulations shown in Table 2 were obtained. In the table, W is the unit water amount, P is the unit cement amount, and Vp is the volume. Incidentally, Vm / Vs of conventional ordinary concrete is around 150%, and the composition of porous concrete having a continuous porosity of 18% or more is at a unique level. Vg is the absolute volume of the coarse aggregate, which is 577 liters in the example of Table 3. For ordinary concrete, W / C (W is the unit water amount, C is refers to the unit cement amount) instead of the W / P represented using. However, in the case of porous concrete, since cement + fine powder may be used, P (powder) is used instead of C, and the mixture of ordinary concrete and the mixture of porous concrete are distinguished.

  As the admixture, a polycarboxylic acid ether admixture having a high water reducing effect was used. The cement used was a high-strength cement, the fine aggregate had the particle size distribution shown in FIG. 2, and the coarse aggregate used was JIS 5005 crushed stone having the particle size distribution shown in FIG.

Here, in order to obtain the quality defined in Table 1 above, the mass of the material to be filled in the mold space is referred to as the theoretical mass Qkg. The theoretical mass Q can be obtained from the absolute volume of the porous concrete PC as shown in Table 3 below.

  In Table 3, Vm was determined as 243 liters of a sum of 95.5 liters of cement, 75 liters of water and 72.5 liters of sand. Vs is 72.5 liters in absolute volume of fine aggregate. Vg is 577 liters in absolute volume of gravel. W is a unit water amount of 75 kg, and P is the same unit cement amount of 300 kg. Therefore, W / P is 25%.

From the relationship shown in Table 3, the raw porous concrete PC to 2074kg weighed and filled in the mold volume 1 m ^3, if molding while applying a pressure pressure oscillations until the correct mold full of concrete obtainable therein As the solidified body, a sloped block 1 made of porous concrete having a compressive strength of 18 N / mm ² , a continuous porosity of 18%, and a water permeability of 0.8 to 2.5 cm / sec is obtained.

  Here, the theoretical mass Q in the case of manufacturing the sloped block 1 having a volume of 18 liters is 0.018 × 2074 kg = 37.3 kg.

  The manufacturing method which manufactures a product using the above mixing | blending was collectively shown in FIG. In step 401, material Si composed of cement S1, fine aggregate S2, coarse aggregate S3, admixture S4, and water S5 is correctly weighed, mixed in a mixer (not shown) in step 402, and raw porous mixed in step 403. The concrete PC is discharged from the mixer.

Next, in step 404, the theoretical mass Q of the raw porous concrete PC is weighed within an error of 1%, and in step 405, it is poured into a mold (not shown) and molded by applying pressure and vibration. After molding, it is removed from the mold and completely cured to obtain a product. When correctly molded in a mold container, the porous concrete becomes a porous concrete having a continuous porosity of 18%, a water permeability of 1.0 cm / sec, and a compressive strength of 18 N / mm ² after curing.

FIG. 5 is an explanatory view showing an embodiment in which the sloped block 1 manufactured as described above is applied to the embankment slope 5. 5, the slope tension block 1 of the present invention arranged on a ground 6 made by cutting the soil, the bottom surface 3a of the leg 3 is in close contact with the surface of the ground 6 leveling concrete 7 and To設Finish in condition. Therefore, the leveling concrete 7 is filled around the leg 3, and the planting pot 4 is arranged through the bottom 3b made of porous concrete having a thickness d. In the planting pot 4, a water retention material is appropriately supported, and a plant planting soil (not shown) is placed thereon to plant the plant 8.

  The planting pot 4 has a depth of L1 + L2-d (see FIG. 1). The sloped block 1 is made of porous concrete for both the base body 2 and the leg body 3 and has a continuous porosity of 18 to 25% and a water permeability of about 0.8 to 2.5 cm / sec. Good properties. Because the eyes are small and clogged, the suction force during a flood is small. Furthermore, since the bottom surface of the planting pot 4 is in contact with the ground (soil) of the ground 6 through the bottom 3b made of porous concrete, water can be supplied from the ground 6 side, and a suitable growth environment for the plant 8 is obtained. Obtainable. In particular, since the planting pot 4 communicates with the ground 6, the planting pot 4 can sufficiently withstand the dry season of summer and grow the plant 8 in the planting pot. The planting pot 4 has entered the leg 3 under the base 2 and is deep enough to grow even a long root plant 8.

Assuming rain, if it is light rain, it penetrates into the base 2 made of porous concrete. If it is heavy rain, the water permeability coefficient is 1.5 cm / s or less, so excess water can be washed away from the surface. Moreover, although these rainwaters try to enter the ground 6 from the bottom part 3b of the planting pot 4, since the hydraulic conductivity is as small as 0.8-3.0 cm / sec, they do not invade the ground 6 in large quantities. . Furthermore, in heavy rain, even if the surface soil of the planting pot 4 is washed away, it cannot be washed away to the deep soil. Furthermore, since the bottom 3b is provided, the soil of the ground 6 cannot be washed away. In the flood, even if the soil in the planting pot is sucked out, the ground soil is not sucked out through the bottom 3b. From the above, the entire slope is not flooded.

FIG. 6 is an explanatory diagram of a sloped block according to another embodiment of the present invention. The sloped block 9 of this example is the same as that shown in FIG. 1 and has a base 10 and legs 11, but has a large planar dimension E, F (for example, 90 cm square) and four planting pots. 12 (12-1, 12-2, 12-3, 12-4) . The composition and manufacturing method of the porous concrete PC are the same, and the height dimensions H, L1, L2, and d are substantially the same as those shown in FIG. In other words, it is a form in which four of those shown in FIG.

Leg 11 (11-1, 11-2, 11-3 and 11-4), based on the surface area of 0.25 m ² per one location of the body 10, it is set to 1 m ² per four places. Moreover, the surface area of the planting pot 12 (12-1, 12-2, 12-3, 12-4) is 5 to 20% of the entire area. Thereby, the greening scale of a river revetment can be planned appropriately, and a greening form can be managed appropriately.

In the sloped block 9 of FIG. 6, since the bottom 11b of the leg 11 protruding downward from the base body 10 of the block 9 is always in contact with the ground 6 via the bottom surface 11a made of porous concrete PC, Therefore, the greening function can be maintained even during the dry season. Moreover, since the planting pot 12 (12-1, 12-2, 12-3, 12-4) has a bottomed structure, the ground effect at the time of flooding can be improved by an appropriate continuous porosity and a filter effect based on the hydraulic conductivity. Soil is sucked out and does not flow out, and a strong quay can be constructed.

FIG. 7 shows still another embodiment. The sloped block 13 according to the present embodiment includes a base 14 and legs 15. This is the same as in FIG. On the upper part of the substrate 14, there is a design protrusion 17 that protrudes upward with respect to the substrate surface 16. Projection 17 (17a, 17b) is around the middle of the planting pot 18, the projection 17b of the protrusion 17a and the central portion of the corner portion is 4 minutes, and is beautifully designed as if an image of if it were sunflower.

The bottom 15b of the planting pot 18 provided below the leg 15 has a special configuration, and a cavity 19 is provided on the bottom surface. That is, the bottom surface of the planting pot 18 is installed between the cavity 19 and the intermediate layer 20 as a sediment discharge preventing member. That is, in the planting pot 18, when the bottom surface 15 a of the leg 15 is in contact with the ground 6 shown in FIG. 5, the cavity 19 is connected via the intermediate layer 20 as a sediment prevention member made of porous concrete. .

Table 4 shows the dimensions of each part.

From Table 4, the cavity 19 is a small cavity having a hole with a diameter of 60 mm on the bottom surface and a dimension of height 40 mm. And the planting pot 18 is arrange | positioned through the intermediate | middle layer 20 of thickness 20mm.

  The sloped block 13 shown in FIG. 7 is provided with a planting pot and is provided on the revetment in the same manner as that shown in FIG. 6, but can be beautifully decorated because it is designed. Also, in the state where florets are planted in the planting pot, the buds can be made beautiful as if they had made a flower garden.

  In this sloped block 13, an inverted cup-shaped cavity 19 is provided below the leg 15, and the planting pot 18 is connected via the intermediate layer 20, so that the ground 6 and the leg 15 are brought into contact with each other. It can be certain. The circulation of water vapor between the ground 6 and the planting pot 18 can be ensured.

  Since the leg 15 can be securely attached to the ground 6, installation work is easy. That is, no contact failure is caused by the leveled concrete 7.

  Examining the sucking action during floods, it will be pointed out that the earth and sand will rise until the inside of the cavity 19 is full, but this is at most 80 cc, which passes through the intermediate layer 20 and leaves the planting pot 18 to the outside. There is no fear of being leaked. That is, it does not matter.

  In the cavity 19, about half of the soil of the ground 6 enters the space 19 to reduce its volume, but does not become zero, and it becomes a buffer space for air and moisture circulation between the intermediate layer 20 and the ground 6. Therefore, it is expected that it will become a family of microorganisms living in the basement and foster a comfortable living environment for microorganisms.

  As described above, the sloped block of the present invention can ensure water circulation by ensuring the water permeability of the waterside portion so as not to block the flow of natural water such as groundwater or spring water. Since the rubbing work can be done according to the change of the slope, the legal slope of the riverbank can be changed freely. This is very important for the creatures that inhabit the river and its surroundings in terms of securing continuity in the upstream and downstream and transverse directions of the river and a network with the surroundings. Greening is possible by constructing soil and pot seedlings in the holes provided in the block. It can be linked to activities such as the “Flower Cup” by local residents.

  The present invention is not limited to the above-described embodiment, can be appropriately changed in design, and can be implemented in various aspects.

BRIEF DESCRIPTION OF THE DRAWINGS It is explanatory drawing of the sloped block which concerns on one Embodiment of this invention, (a) A figure is a top view, (b) A figure is a side view. It is a graph which shows the particle size distribution of the fine aggregate used for the mixing | blending of porous concrete. It is a graph which shows the particle size distribution of the coarse aggregate used for the mixing | blending of porous concrete. It is a flowchart which shows the manufacturing method of the porous concrete which concerns on one Embodiment of this invention. It is sectional drawing of the embankment slope which shows the specific example to which the sloped block of this invention is applied. It is explanatory drawing of the sloped block which concerns on other embodiment of this invention, (a) A figure is a top view, (b) A figure is a side view. The sloped block which concerns on other embodiment of this invention is shown, (a) is a top view, (b) is sectional drawing.

Explanation of symbols

1, 9, 13 Slope block 2, 10, 14 Base 3, 11 (11-1, 11-2, 11-3, 11-4), 15 Leg 3a, 11a Bottom 3b, 11b Bottom 4, 12 (12-1, 12-2, 12-3, 12-4), 18 hole (planting pot)
5 Embankment slope 6 Ground 7 Leveled concrete 8 Plant 19 Cavity 20 Middle layer PC Porous concrete PP Depth of planting pot

Claims (4)

A sloped block with a planting function that is constructed by laying a leveling concrete on the revetment ground and laying a number of sloped blocks in a grid pattern on the leveled concrete. and substrate, the lower surface co Once embedded in the leveling the concrete has a leg and you contact with the ground, the leg as planting pots for accomplishing the planting function It provided bottomed holes you open to the surface via the substrate, wherein the chromatic While the bottom of the bottom hole section can be water flow relative to the ground, sediment discharge prevention member is not Rukoto drained sediment It has the base and the leg a compressive strength 18N / mm ² or more, characterized in that formed by integrally molding a continuous porosity 18-25%, porous concrete permeability 0.8~3.0cm / sec A sloped block. In slope-clad block of claim 1, wherein the sediment discharge preventing member, the base and the leg and slopes clad block you being a porous concrete are integrally molded. In slope-clad block of claim 1, wherein the opening area of the bottomed hole is slope-clad block you being formed to 5-25% relative to the substrate surface. The sloped block according to claim 1 or 2, wherein a reverse cup-shaped cavity is provided at the bottom of the leg, and an intermediate layer made of porous concrete is interposed between the planting pot and the slope. It shall be the law face lined block.

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