JP6905863B2 - Adjustment member and construction method of structure using it - Google Patents

Description

The present invention relates to an adjusting member and a method of constructing a structure using the adjusting member.

In order to reinforce a slope that may slip or collapse, a method is known in which a support plate is provided along the slope and a structure for damming earth and sand or the like is provided on the support plate. The slope has irregularities, and there is a gap between the support plate and the slope. Therefore, Patent Documents 1 and 2 disclose a construction method for filling a gap between a support plate and a slope with a non-land adjustment mat. The non-land adjustment mat disclosed in Patent Document 1 is an elastic mat formed by using palm fibers and does not lose plant vegetation. Further, the non-landing adjustment mat disclosed in Patent Document 2 is a strip-shaped mat having elasticity, and the elasticity makes it easy to enter the gap between the support plate and the slope.

Further, Patent Document 3 also discloses a non-land adjusting member. This non-land adjusting member is formed by forming a formwork on a slope so as to surround a support rod for fixing a structure to a support plate, injecting grout into the formwork, and hardening the formwork. As a result, a support plate having a flat end surface is formed, so that the structure can be stably supported on the flat support plate.

Japanese Unexamined Patent Publication No. 2011-219938 Japanese Unexamined Patent Publication No. 2009-299337 Japanese Unexamined Patent Publication No. 2004-124573

However, the non-landing adjustment mats of Patent Documents 1 and 2 fill the gap between the support plate and the slope due to their elasticity, but there is a problem that the strength is not sufficient due to this elasticity. Therefore, for example, the support plate may shift and the structure may not be firmly fixed to the slope. Further, in Patent Document 3, it is necessary to carry the transport vehicle containing the grout material to the place where the formwork is formed. Further, it is also necessary to pump the grout material from the transport vehicle to the mold via the injection hose. Therefore, for example, depending on the terrain of the place where the formwork is formed, there is a problem that it is difficult to carry the transport vehicle and it is also difficult to pump the grout by the injection hose. It should be noted that the above problems are problems that can occur not only when the adjusting member is installed on a flat surface as well as on a surface with unevenness.

The present invention has been made to solve the above problems, and an object of the present invention is to provide an adjusting member which has strength and is easy to construct, and a method of constructing a structure using the adjusting member.

The present invention is an adjusting member arranged between a structure and an installation surface on which the structure is installed, and is a mixture of a bag body and a water-curing material and an expanding material contained in the bag body. And have.

According to this configuration, since the water-curing material is stored in the bag in advance, for example, if water is supplied into the bag after arranging the adjusting member on the installation surface, the water-curing material is cured in the bag. And can give strength to the adjusting member. Therefore, for example, it is not necessary to pump these from a transport vehicle containing materials such as cement, mortar, and grout before hardening by using an injection hose or the like to introduce them into the bag. Therefore, if the adjusting member and water are prepared and water is supplied into the bag, the adjusting member can be given strength and can be arranged between the structure and the installation surface.

In addition, a mixture of a water-curing material and an expanding material is contained in the bag. Therefore, when water is supplied into the bag, the water-curing material is cured in a uniformly dispersed state without being biased in the bag. At this time, when the water-curing material is cured in a state of being biased by the load, the water-curing material cured in the bag is cracked due to the local load bias. However, in the present invention, since the water-curing material is cured in a uniformly dispersed state, there is no bias in the load of the water-curing material, and cracking of the water-curing material can be suppressed. Further, the swelling material is also dispersed by being mixed with the water-curing material, and is in a swelled state in a dispersed state by being supplied with water. At this time, the water from the expanding material swollen in the dispersed state contributes to the curing of the water-curing material, so that the water-curing material is cured in a uniform state. Further, the expanding material swollen by the supply of water serves as a cushioning material for the water-curing material, and the water-curing material can be elastically supported to suppress cracking of the water-curing material. It should be noted that the term “uniformity” includes not only perfect uniformity but also substantially uniformity in a state in which bias is suppressed to some extent. The expanding material means not only a material that expands by itself, but also a material that promotes expansion of another material such as a water-curing material, and such a material can be contained. However, in the following, unless otherwise specified, the description will be made mainly as a material in which the expansion material itself expands.

In the adjusting member, the expanding material may contain a material that expands due to water supply.

In the angle adjusting member, the bag body may be provided with at least one water injection port for injecting water into the bag body. When water is supplied from the water injection port in this way, a predetermined amount of water can be efficiently supplied into the bag body.

In each of the adjusting members, at least one through hole into which a fixing member for fixing the structure to the installation surface can be inserted can be formed in the bag body.

In this way, if the fixing member is inserted into the through hole of the bag body and the fixing member is fixed to the installation surface, the adjusting member can be fixed to the installation surface together with the structure. As a result, it is possible to suppress the deviation of the adjusting member arranged at the predetermined position.

In each of the adjusting members, the bag body can be formed of a non-woven fabric.

When the bag body is formed of a non-woven fabric in this way, it has elasticity because it has a porous structure as compared with, for example, a bag body in which fibers are woven vertically and horizontally. Therefore, even if the water-curing material and the expanding material absorb water in the bag body to increase the bulk, the bag body can be stretched to suppress the tearing of the bag body.

In each of the adjusting members, the non-woven fabric may be at least one selected from, for example, polyolefin fibers, polyester fibers, polyamide fibers, rayon fibers, polyacrylic fibers, polysulfone fibers, polyvinyl alcohol fibers, starch fibers and cellulose fibers. can.

In each of the adjusting members, the non-woven fabric can be, for example, a hydrophilic non-woven fabric.

When the bag body is a hydrophilic non-woven fabric as described above, it not only has elasticity, but also the water absorption is improved by the hydrophilic agent. The inflatable material swells due to the water injected into the bag, and the bulk increases. As the bulk increases, the hydrophilic non-woven fabric also stretches, so that tearing of the bag body can be suppressed. Further, for example, since the hydrophilic non-woven fabric has water absorption, it can absorb excess water that the water-curing material and the expanding material could not absorb.

Further, by immersing the bag body made of the hydrophilic non-woven fabric in water, the bag body can absorb the water and supply the water into the bag body. As a result, water can be supplied to the water-curing material and the expanding material in the bag, and the water-curing material can be cured and water can be absorbed by the expanding material. Therefore, it is not necessary to provide a water injection port in the bag body, and even if the bag body has a water injection port, water can be supplied into the bag body without using the water injection port.

In each of the adjusting members, the water-curing material can be, for example, a cement-based substance.

When the water-curing material is a cement-based substance as described above, it is easily cured by supplying water, for example, by hydration and polymerization, which facilitates handling.

In each of the adjusting members, the expanding material may contain, for example, a water-absorbing polymer or bentonite.

In each of the adjusting members, the expanding material contains, for example, at least one selected from an acrylic acid-based polymer, an isobutylene-based polymer, a maleic acid-based polymer, a polyvinyl alcohol-based polymer, and a water-expanding rubber. Can be done.

The construction method of the first structure according to the present invention includes a step of arranging any of the above-mentioned adjusting members between the structure and the installation surface on which the structure is installed, and the structure. It includes a step of fixing to the installation surface by a fixing member and a step of supplying water to the adjusting member.

According to this construction method, an adjusting member is arranged between the installation surface and the structure, and after fixing the structure, water is supplied to the adjusting member. The gap between the installation surface and the adjusting member can be filled by the curing of the water-curing material and the expansion of the expanding material by such water supply. As a result, the structure can be arranged without a gap with respect to the installation surface via the adjusting member, and the structure can be firmly supported on the installation surface via the adjusting member having strength by curing the water-curing material. ..

The second structure construction method according to the present invention includes a step of arranging any of the above-mentioned adjusting members on an installation surface for installing the structure, a step of supplying water to the adjusting member, and water. The structure is installed on the adjusting member, and the structure is fixed to the installation surface by the fixing member.

As in this construction method, after water is supplied to the adjusting member installed on the installation surface, a structure can be installed on the adjusting member to fix the support plate. In this case, for example, the support plate can be installed while observing the degree of expansion of the adjusting member.

In the construction method of the third structure according to the present invention, the step of supplying water to any of the above-mentioned adjusting members and the adjusting member to which the water is supplied are arranged on the installation surface for installing the structure. It includes a step, a step of installing a structure on the adjusting member to which water is supplied, and a step of fixing the structure to the installation surface by a fixing member.

As in this construction method, after water is supplied to the adjusting member, the adjusting member may be installed on the installation surface, and a structure may be installed on the adjusting member to fix the support plate. In this case, for example, even when it is difficult to transport water to the installation surface, the adjusting member can be transported to the installation surface after the water is supplied to the adjusting member.

According to the present invention, it is possible to provide an adjusting member which has strength and can be easily used, and a method of constructing a structure using the adjusting member.

It is an external view which shows the appearance of the adjustment member, (a) is a front view, (b) is a side view. The schematic diagram which shows the fence structure fixed to the installation surface. A cross-sectional view showing how the adjusting member fills the gap between the uneven installation surface and the support plate of the fence structure. The cross-sectional view which shows the structure around the fixing member which fixes a support plate. An example of a flowchart showing a flow of a fence structure construction method using a trimming member. Explanatory drawing explaining the flow of the construction method of a fence structure. Explanatory drawing explaining the flow of the construction method of a fence structure. Explanatory drawing explaining the flow of the construction method of a fence structure. It is a schematic view which shows the bag body which has a water injection port, (a) is a front view, (b) is a side view. It is a schematic view which shows the other bag body which has a water injection port, (a) is a front view, (b) is a side view. The schematic diagram which shows the adjustment member which formed the through hole. It is a schematic view of the adjustment member provided with a through hole and a water injection port, (a) is a front view, and (b) is a side view. It is a schematic view of the adjustment member provided with a through hole and a water injection port, (a) is a front view, and (b) is a side view. The schematic diagram which shows the adjustment member which has a plurality of separated sections. An example of a flowchart showing another flow of a fence structure construction method using an adjusting member. An example of a flowchart showing another flow of a fence structure construction method using an adjusting member.

Hereinafter, an embodiment of the method for constructing the adjusting member and the structure of the present invention will be described with reference to the drawings. As will be described later, the adjusting member is arranged between the structure and the slope when the structure is constructed on the slope, and is mainly for absorbing the unevenness of the slope. In the following, the adjusting member will be described first, and then the construction method of the structure will be described.

<1. Adjusting member>
FIG. 1 is an external view showing the appearance of the adjusting member ((a) front view, (b) side view). The adjusting member 10 according to the present embodiment is formed by accommodating a mixture of the water-curing material 13 and the expanding material 15 in, for example, a rectangular bag body 11.

<1-1. Bag body>
The bag body 11 is formed in a rectangular parallelepiped shape in a front view, and has a predetermined width in a side view, for example. More specifically, for example, the bag body 11 is formed by a pair of rectangular main body sheets 11a and a pair of side surface sheets 11b that connect the side sides of the main body sheets 11a in the longitudinal direction. For example, one woven fabric constituting the pair of main body sheets 11a is folded in half, the end portions 11c of the pair of side sheet 11b are sewn on the side edges thereof, and the upper end 11d and the lower end 11e of the side sheet 11b are further sewn. Is sewn on the main body sheet 11a. As a result, the bag body 11 having an internal space is formed. Then, a mixture of the water-curing material 13 and the expanding material 15 is housed in this internal space. However, this mixture may be contained in the bag 11 at any time until the sewing of the bag 11 is completed.

The material constituting the bag body 11 is not particularly limited as long as the water-curing material 13 and the expanding material 15 can be accommodated even when water is supplied into the bag body 11. For example, it can be formed by at least one woven fabric selected from cotton fabrics, woolen fabrics, linen fabrics, silk fabrics, synthetic fiber fabrics and the like.

Further, the bag body 11 can also be formed of a non-woven fabric made of long fibers, short fibers or a mixture thereof. The non-woven fabric may be formed from at least one selected from, for example, but not limited to, polyolefin fibers, polyester fibers, polyamide fibers, rayon fibers, polyacrylic fibers, polysulfone fibers, polyvinyl alcohol fibers, starch fibers and cellulose fibers. can. In addition, the non-woven fabric can be formed from various materials such as, for example, at least one fiber selected from aramid fiber, glass fiber, nylon fiber and polypropylene fiber.

The non-woven fabric can also be formed from a thermoplastic resin. Examples of the thermoplastic resin include, but are not limited to, at least one selected from low-density polyethylene resin, ethylene vinyl acetate resin, synthetic rubber, copolymerized polyamide resin, copolymerized polyester resin, and the like. In the case of a thermoplastic resin, for example, the bag 11 can be sealed by applying heat to the end of the bag 11.

The non-woven fabric is formed by binding fibers such as, but not limited to, the above-mentioned polyolefin fibers and polyester fibers by a known method. For example, the non-woven fabric can be formed by a binder treatment. The binder treatment is formed by spraying a solution containing a binder resin for bonding onto predetermined fibers such as polyolefin fibers and polyester fibers. Further, the non-woven fabric is formed by impregnating a predetermined fiber with a solution containing a binder resin or coating a predetermined fiber with a solution containing a binder resin. The binder resin may be formed as a non-woven fabric by binding predetermined fibers, and is not limited to, for example, a polyimide resin, a polyamide resin, a urea resin, a phenol resin, a urethane resin, a melamine resin, a polyether resin, or a polyetherketone. At least one selected from ketone resin, natural rubber, synthetic rubber such as acrylic rubber, thermoplastic elastomer and the like can be mentioned.

In addition, the non-woven fabric can be formed by, for example, a wet method, a dry method, a spunbond method, a melt blow method, or an orthogonal laminated bond. The non-woven fabric can also be formed by, for example, a thermal bond method, a chemical bond method, a needle punch method, a spunlace method, a stitch bond method, a steam jet method, or the like.

When the bag body 11 is made of a non-woven fabric, it has elasticity because it has a porous structure as compared with, for example, the bag body 11 in which fibers are woven vertically and horizontally. Therefore, even if the water-curing material 13 and the expanding material 15 absorb water in the bag body to increase the bulk, the bag body 11 can be stretched to suppress the tearing of the bag body 11. Further, since the non-woven fabric has a porous structure, the bag body 11 can be immersed in water to absorb water, and water can be supplied into the bag body 11. As a result, it is not necessary to provide a water injection port in the bag body 11, and even if the bag body 11 is provided with a water injection port, water can be supplied into the bag body 11 without using the water injection port.

The bag body 11 can also be formed by using a hydrophilic non-woven fabric in which the non-woven fabric contains a hydrophilic agent. Examples of the hydrophilic non-woven fabric include those in which the above-mentioned non-woven fabric contains a hydrophilic agent. The hydrophilic non-woven fabric not only has elasticity, but also has improved water absorption due to the hydrophilic agent. The expander 15 is swollen by the water injected into the bag 11, and the bulk is increased. Since the hydrophilic non-woven fabric also stretches as the bulk increases, tearing of the bag body 11 can be suppressed. Further, for example, since the hydrophilic non-woven fabric has water absorption, it can absorb excess water that the water-curing material 13 and the water-absorbing expansion material 15 could not absorb.

Further, by immersing the bag body 11 made of a hydrophilic non-woven fabric in water, the bag body 11 can absorb water and supply water into the bag body 11. As a result, water can be supplied to the water-curing material 13 and the expanding material 15 in the bag body 11, the water-curing material 13 can be cured, and the expanding material 15 can be expanded. Therefore, it is not necessary to provide the water injection port in the bag body 11, and even if the bag body 11 is provided with the water injection port, water can be supplied into the bag body 11 without using the water injection port.

<1-2. Mixture>
Next, the water-curing material 13 and the expanding material 15 constituting the mixture will be described. The water-curing material 13 is not particularly limited as long as it is a substance that cures by, for example, hydration and polymerization by supplying water, but for example, gypsum, lime, magnesia cement, Portland cement, alumina cement, lime slag cement and silica. It can be composed of at least one cement-based substance selected from cement and the like. Cement-based substances are easy to handle because they are easily cured by, for example, hydration and polymerization by supplying water. It can also be composed of a mortar-based substance. The water-curing material 13 is preferably in the form of granules or clay so that it can be easily mixed with the expanding material 15 in the bag body 11.

Further, the water-curing material 13 can contain a curing accelerator that accelerates the curing of the water-curing material 13. Examples of the curing accelerator include substances that promote curing by promoting hydration, polymerization, and the like of the water-curing material 13. Examples of the curing accelerator include, but are not limited to, inorganic compounds and organic compounds, and may be at least one substance selected from the following. Examples of the inorganic compound include chlorides such as calcium, sodium, potassium, lithium and aluminum, nitrates, nitrites, sulfates and carbonates. Moreover, as an example of an organic compound, amines, calcium salts of organic acids and the like can be mentioned. In addition, the water-curing material 13 can contain silica, alumina, iron and the like.

The expanding material 15 is not particularly limited as long as it is a substance that expands by supplying water, but contains, for example, a water-absorbing polymer. The water-absorbent polymer absorbs 100 to 1000 times its own weight of water, and expands by holding a large amount of water in a gel state. By adjusting the amount of water to be supplied, the degree of expansion of the water-absorbent polymer can be adjusted. The water-absorbent polymer is not limited to this, and examples thereof include at least one selected from acrylic acid-based polymers, isobutylene-based polymers, maleic acid-based polymers, polyvinyl alcohol-based polymers, and the like. In addition, examples of the expanding material 15 include water-expanding rubber and bentonite. The expansion material 15 is preferably granular or clay-like, for example, so that it can be easily mixed with the water-curing material 13 in the bag body 11.

The amount of the water-curing material 13 and the expanding material 15 housed in the bag body 11 is such that the bag body 11 does not tear even when the water-curing material 13 and the expanding material 15 absorb water and expand in the bag body 11. If so, it is not particularly limited. Further, the ratio of the water-curing material 13 to the expanding material 15 is such that a predetermined strength can be given to the adjusting member 10 by curing the water-curing material 13 and the expanding material 15 can be expanded to a desired size. There is no particular limitation. The ratio of the expanding material 15 to the water-curing material 13 is not particularly limited as long as the water-curing material 13 can be given a predetermined elasticity by expansion.

<2. Construction method of structure ＞
The fence structure 20 and its construction method will be described. FIG. 2 is a schematic view showing a fence structure fixed to the installation surface. FIG. 3 is a cross-sectional view showing a state in which the adjusting member fills the gap between the installation surface having unevenness and the support plate of the fence structure. FIG. 4 is a cross-sectional view different from that of FIG. 3, and is a cross-sectional view showing a configuration around a fixing member for fixing the support plate.

As shown in FIG. 2, this fence structure 20 is installed on an installation surface G such as a mountain slope, and is used as a landslide prevention fence, an avalanche prevention fence, or the like. The fence structure 20 includes a pair of support portions 21 for fixing the fence structure 20 to the installation surface G, and a fence portion 25 that stands up from these support portions and blocks earth and sand, snow, and the like. ..

Each support portion 21 includes a plate-shaped support plate 22 extending in the slope direction, and a rod-shaped fixing member 23 for fixing the support plate 22 to the installation surface G. The fixing member 23 includes a rod-shaped insertion portion 23b and a fixing portion 23a provided at the end thereof, and is inserted from the vicinity of the upper end portion of the support plate 22, that is, the through hole 22a formed on the upper side of the slope. Part 23b is driven deep into the ground. The fixing portion 23a is engaged with the through hole 22a on the upper surface (ground side) of the support plate 22. In this way, the fixing member 23 fixes the support plate 22 to the installation surface G.

The fence portion 25 includes a support column 26 extending upward from each support plate, and a plurality of beam members 27 hung between the support columns 26. Further, two stay rods 28 are provided between the 26 columns. That is, one stay rod 28 extends so as to be fixed to the vicinity of the upper end portion of one strut 26 and the vicinity of the lower end portion of the other strut 26, and the other stay rod 28 is near the lower end portion of one strut 26. And the other support column 26 extends so as to be fixed to the vicinity of the upper end portion. As a result, the two stay rods 28 intersect between the two columns 26.

The fence structure 20 described above is arranged on the installation surface G, but since the installation surface G is, for example, a slope of a mountain, it is not always flat and has irregularities. Therefore, a gap is created between the installation surface G and the support plate 22. Therefore, in the present embodiment, as shown in FIGS. 3 and 4, the adjusting member 10 is arranged in the gap between the installation surface G and the support plate 22.

Next, a method of constructing a fence structure using the adjusting member 10 will be described. FIG. 5 is an example of a flowchart showing a flow of a method of constructing a fence structure using an adjusting member. 6 to 8 are explanatory views for explaining the flow of the construction method of the fence structure.

First, as shown in FIG. 6, the adjusting member 10 is arranged at a place on the installation surface G where the support plate 22 for supporting the fence structure 20 is arranged. Then, as shown in FIG. 7, the support plate 22 is arranged on the adjusting member 10 (step S10). The adjusting member 10 is arranged at a position where, for example, the installation surface G has irregularities, and when the support plate 22 is arranged directly on the installation surface G, a gap is generated between the installation surface G and the support plate 22. Alternatively, the adjusting member 10 may be arranged at a position where the strength of the installation surface G is insufficient and the support plate 22 cannot be firmly fixed to the installation surface G.

Next, the support plate 22 is fixed to the installation surface G by the fixing member 23 via the adjusting member 10 (step S11). For example, first, as shown in FIG. 8, an insertion hole 24 for inserting the insertion portion 23b is formed at a position where the support plate 22 is installed on the installation surface G. Then, the support plate 22 and the insertion hole 24 are aligned, and the fixing member 23 is inserted into the through hole 22a penetrating the support plate 22. Then, the fixing portion 23a is fixed on the support plate 22, and the insertion portion 23b is inserted into the insertion hole 24 in the installation surface G and fixed. The support column 26, the beam member 27, and the stay rod 28 may be attached to the support plate 22 before fixing the support plate 22 to the installation surface G, or may be attached to the support plate 22 after the support plate 22 is fixed. May be attached to. The method of fixing the insertion portion 23b to the insertion hole 24 is not particularly limited.

Next, water is supplied to the adjusting member 10 (step S12). Water may be supplied to the adjusting member 10 by sprinkling water from the outer surface of the adjusting member 10 to allow the water to permeate into the adjusting member 10. Alternatively, water may be supplied into the adjusting member 10 from a predetermined water injection port provided in the adjusting member 10. As a result, as shown in FIGS. 3 and 4, it is possible to cure the water-curing material 13 and expand the expanding material 15 by supplying water, and to fill the gap between the installation surface G and the adjusting member 10. Therefore, the support plate 22 can be arranged without a gap with respect to the installation surface G via the adjusting member 10, and the support plate 22 is firmly placed on the installation surface G via the adjusting member 10 which has strength due to the curing of the water-curing material 13. Can be supported by.

<3. Features>
According to the present embodiment, since the water-curing material is stored in the bag 11 in advance, if water is supplied into the bag 11 after the adjusting member 10 is arranged on the installation surface G as described above. The water-curing material 13 is cured and the expanding material 15 expands to fill the gap between the installation surface G and the support plate 22, and the adjusting member 10 is firmly supported by the curing of the water-curing material 13. Support. Therefore, the fence structure 20 on the support plate 22 can be stably fixed to the installation surface G. Further, for example, it is not necessary to pump these from a transport vehicle containing materials such as cement, mortar and grout before hardening by using an injection hose or the like to introduce them into the bag. Therefore, if the adjusting member 10 and water are prepared and water is supplied into the bag body 11, the adjusting member 10 can be given strength, and the fence structure 20 is firmly installed on the uneven installation surface G. can do.

<4. Modification example>
Although one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention. For example, the following changes can be made. In addition, the gist of the following modified examples can be combined as appropriate.

<4-1>
In the above embodiment, the bag body 11 is formed so as to be substantially sealed as a whole. However, the bag body 11 may be provided with at least one water injection port 30 for injecting water into the bag body 11. By providing the water injection port 30, a predetermined amount of water can be efficiently injected into the bag body 11 through the water injection port 30. 9A and 9B are schematic views showing a bag body having a water injection port, FIG. 9A is a front view, and FIG. 9B is a side view. 10A and 10B are schematic views showing another bag body having a water injection port, FIG. 10A is a front view, and FIG. 10B is a side view. The water injection port 30 is formed by providing an opening on, for example, one surface of the bag body 11. The position of the water injection port 30 formed in the bag body 11 is not particularly limited, but as shown in FIG. 9, for example, the water injection port 30 can be provided on one of the pair of main body sheets 11a. Further, as shown in FIG. 10, the water injection port 30 can be provided on the pair of side sheet 11b of the bag body 11, but can also be provided on one of the side sheets 11b. When the adjusting member 10 is arranged so that the main body sheet 11a comes into contact between the installation surface G and the support plate 22, the side surface sheet 11b is exposed from between the installation surface G and the support plate 22. In this case, if the side sheet 11b is provided with the water injection port 30, it is easy to inject water into the bag body 11 from the water injection port 30. The water injection port 30 may be provided as long as water can be injected into the bag body 11, and its position, size, shape, number, and the like are not particularly limited.

Further, it is preferable that the water injection port 30 is provided with a sealing valve 31 that covers the water injection port 30 so that the water injected from the water injection port 30 does not spill from the inside of the bag body 11. The sealing valve 31 is formed, for example, by providing a notch in a flat rubber-like member, and in the state before water injection, the notches are in close contact with each other to seal the bag body 11. When the water injection hose or the like is inserted into the water injection port 30, the sealing valve 31 enters the inside of the bag 11 and surrounds the water injection hose to prevent water from spilling. Further, when the water injection hose or the like is pulled out from the water injection port 30, the notch of the sealing valve 31 is brought into close contact again to seal the bag body 11 and prevent water from spilling from the bag body 11. The sealing valve 31 is not limited to the above-described form as long as it can prevent water from spilling from the bag body 11. For example, the sealing valve 31 may be formed of a plug that can open and close the water injection port 30.

Further, when a plurality of adjusting members 10 are prepared, the water injection ports 30 of the adjacent bag bodies 11 may be connected to each other. As a result, since the plurality of adjusting members 10 can be connected and integrated, the size of the adjusting members can be changed to a desired size. Further, for example, by injecting water into the bag body 11 from the water injection port 30 of one of the plurality of adjusting members, water can be injected into the entire plurality of adjusting members 10.

<4-2>
A through hole 40 into which the fixing member 23 is inserted can also be formed in the bag body 11 of the above embodiment. FIG. 11 is a schematic view showing an adjusting member in which a through hole is formed. As shown in the figure, the through hole 40 is formed so as to penetrate, for example, a pair of main body sheets 11a of the bag body 11. If the fixing member 23 is inserted into the through hole 40 of the bag body 11 and fixed to the installation surface G, the adjusting member 10 can be fixed to the installation surface G together with the fence structure 20. As a result, it is possible to prevent the adjusting member 10 from shifting between the support plate 22 and the installation surface G. The position, size, shape, number, and the like of the through holes 40 are not particularly limited.

The adjusting member 10 may be further provided with a water injection port 30 in addition to the through hole 40. 12 and 13 are schematic views of an adjusting member provided with a through hole and a water injection port, where FIG. 12A is a front view and FIG. 13B is a side view. As shown in FIG. 12, the adjusting member 10 is formed with, for example, a through hole 40 penetrating a pair of main body sheets 11a of the bag body 11 and a water injection port 30 on one surface of the pair of main body sheets 11a. Further, as shown in FIG. 13, for example, the adjusting member 10 is formed with, for example, a through hole 40 penetrating a pair of main body sheets 11a of the bag body 11 and a water injection port 30 in the pair of side sheet 11b.

<4-3>
In the above embodiment, the adjusting member 10 has one internal space as a whole. However, the internal space of the bag 11 may be divided into a plurality of sections. FIG. 14 is a schematic view showing an adjusting member having a plurality of partitioned sections. As shown in the figure, the adjusting member 10 is divided into two sections, for example, a first section 12a and a second section 12b. A mixture of the water-curing material 13 and the expanding material 15 is housed in each of the first and second compartments 12a and 12b. Further, each of the first and second compartments 12a and 12b may be provided with a water injection port 30 capable of injecting water into the bag body 11. Thereby, for example, water can be injected into the bag body 11 through the water injection port 30 only in the section corresponding to the place where the unevenness of the installation surface G is severe. The number of sections and the size of each section can be appropriately set according to the size of the adjusting member 10 and the place where the adjusting member 10 is arranged. Further, the adjusting member 10 for providing the section may be any of the adjusting members 10 having various forms such as FIGS. 1, 9 to 13.

<4-4>
In the above embodiment, an example of a structure construction method is shown in FIG. However, the construction method of the structure is not limited to this. For example, the construction method of the structure shown in FIGS. 15 and 16 may be used. 15 and 16 are examples of a flowchart showing another flow of a method of constructing a fence structure using an adjusting member.

In FIG. 15, first, the adjusting member 10 is arranged on the installation surface G (step S20). Next, water is supplied to the adjusting member 10 (step S21). Next, a support plate 22 for supporting the fence structure 20 is installed on the adjusting member 10 to which water is supplied, and the support plate 22 is fixed to the installation surface G by the fixing member 23 (step S22). In the case of this construction method, for example, the support plate 22 can be installed while observing the degree of expansion of the adjusting member 10.

In FIG. 16, first, water is supplied to the adjusting member 10 (step S30). Next, the adjusting member 10 is arranged on the installation surface G (step S31). Next, a support plate 22 for supporting the fence structure 20 is installed on the adjusting member 10 to which water is supplied, and the support plate 22 is fixed to the installation surface G by the fixing member 23 (step S32). In the case of this construction method, for example, even when it is difficult to transport water to the installation surface G, the adjusting member 10 can be transported to the installation surface G after the water is supplied to the adjusting member 10.

The water may be supplied to the adjusting member 10 by sprinkling water from the outer surface of the adjusting member 10 to allow the water to permeate into the adjusting member 10. Alternatively, water may be supplied into the adjusting member 10 from a predetermined water injection port 30 provided in the adjusting member 10.

<4-5>
In the above embodiment, water is used to cure the water-curing material 13 and expand the expanding material 15. However, water may contain various solvents other than water. For example, the water-curing material 13 can be cured not only by water but also by various solvents other than water. Similarly, the expanding material 15 can be expanded not only by water but also by various solvents other than water. For example, the expanding material 15 may contain, for example, aluminum powder as a material that expands itself as well as a material that promotes the expansion of the water-curing material 13. As a result, hydrogen is generated from the aluminum powder by the supply of water, and the water-curing material 13 such as a cement-based substance or a mortar-based substance can be expanded. However, since these materials expand in the space constrained by the bag body 11, they do not expand excessively until the strength required for the water-curing material 13 is impaired. Therefore, the adjusting member 10 expands so as to fill the gap between the support plate 22 and the ground plane G, and an accurate support state of the fence structure 20 is ensured. Further, although cement-based and mortar-based substances have the property of shrinking when cured, by containing aluminum powder, the gap between the support plate 22 and the ground plane G due to the shrinkage of the water-curing material 13 can be regenerated. Preventing, the adjusting member 10 can more reliably fulfill the role of filling the gap. Further, in addition to the water-curing material 13 described above, another material that expands due to a material such as aluminum powder can be contained in the mixture.

<4-6>
In the above embodiment, it has been described that the adjusting member 10 is arranged between the installation surface G having a non-landing surface and the support plate 22, and is used as a member for filling the gap between them. However, the application of the adjusting member 10 is not limited to this, and it can be used for any application that can be used by supplying water to expand and cure it. For example, the adjusting member 10 can also be used for sandbags, foundation parts such as construction sites, and the like. Further, in the above embodiment, the adjusting member 10 is used to stably fix the fence structure 20, but the adjusting member 10 stably supports all structures other than the fence structure 20 on the installation surface G. It is available for. Further, the installation surface G may also be a surface other than the inclined surface.

<4-7>
In the above embodiment, the outer shape of the bag 11 is rectangular, but the outer shape of the bag 11 is not limited to this, and various forms such as a square shape, a circular shape, and an elliptical shape can be adopted. Further, in the above embodiment, the bag body 11 is composed of a pair of main body sheets 11a and a pair of side surface sheets 11b. For example, the bag body 11 does not have the side sheet 11b and the pair of main body sheets 11a. It may have only, and various aspects are possible.

10: Adjusting member 11: Bag body 13: Water hardening material 15: Expansion material 20: Fence structure 21: Support part 22: Support plate 30: Water injection port 40: Through hole G: Installation surface

Claims (10)

An adjusting member arranged between a structure and an installation surface on which the structure is installed.
With the bag
A mixture of the water-curing material and the expanding material contained in the bag body,
Bei to give a,
The water-curing material is a granular or clay-like cement-based substance.
The expanding material is an adjusting member that is formed in the form of granules or clay and contains a water-absorbing polymer that absorbs water 100 to 1000 times its own weight. The adjusting member according to claim 1 , wherein the bag body includes at least one water injection port for injecting water into the bag body. The adjusting member according to claim 1 or 2 , wherein the bag body is formed with at least one through hole into which a fixing member for fixing the structure is inserted. The adjusting member according to any one of claims 1 to 3 , wherein the bag body is made of a non-woven fabric. The adjusting member according to claim 4 , wherein the non-woven fabric is at least one selected from polyolefin fibers, polyester fibers, polyamide fibers, rayon fibers, polyacrylic fibers, polysulfone fibers, polyvinyl alcohol fibers, starch fibers and cellulose fibers. .. The adjusting member according to claim 4 or 5 , wherein the non-woven fabric is a hydrophilic non-woven fabric. The expandable material, as the water-absorbing polymer, acrylic acid polymer, isobutylene-based polymers, containing maleic acid polymer, and at least one is either found selected polyvinyl alcohol and high partial child, The adjusting member according to any one of claims 1 to 6.
The step of arranging the adjusting member according to any one of claims 1 to 7 between the structure and the installation surface on which the structure is installed, and
A step of fixing the structure to the installation surface with a fixing member,
The step of supplying water to the adjusting member and
The construction method of the structure. The step of arranging the adjusting member according to any one of claims 1 to 7 on the installation surface for installing the structure, and
The step of supplying water to the adjusting member and
A step of installing the structure on the adjusting member to which water is supplied and fixing the structure to the installation surface by the fixing member.
The construction method of the structure. The step of supplying water to the adjusting member according to any one of claims 1 to 7.
A step of arranging the adjusting member to which water is supplied on an installation surface for installing a structure, and
A step of installing a structure on the adjusting member to which water is supplied and fixing the structure to the installation surface by a fixing member.
The construction method of the structure.

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