JP3937343B2 - Rainwater storage and penetration facilities - Google Patents

Description

The present invention belongs to an arrangement in which unit members are arranged one-dimensionally, two-dimensionally or three-dimensionally and used for temporary storage of rainwater or a core of lightweight embankment.

Various unit units made of resin as shown in FIG. 41 are arranged, connected and assembled to form an arrangement, and such an arrangement is provided in the basement for a storage and infiltration facility for the purpose of temporarily storing rainwater. It is known or proposed to form a storage space, or to form an arrangement on a soft ground and to form a banking structure with the top of the earth.

When used as a storage and infiltration facility, the necessary items are buried, such as the installation of underground equipment, and the surroundings of the arrangement covered with a water-permeable sheet or water-impervious sheet to introduce rainwater, discharge equipment, and mud pool Combined with a permeation tank, a storage tank, or a storage permeation tank that also functions as a storage permeation.

When used as a banking structure, an arrangement is formed on the ground, the periphery of the arrangement is covered with a water-permeable sheet, and the periphery is piled up.
Further, Japanese Patent Laid-Open No. 10-252108 proposes the use of the arrangement itself as a temporary stage for easy disassembly, or as a core material for sand or snow-made objects used for extraordinary events.

The unit member constituting the above arrangement is a container-like member (Japanese Patent Laid-Open No. 63-268823), a molded body having one or more protrusions on a flat plate (Japanese Patent Laid-Open No. H09-78841), a plate provided in parallel Molded body that supports the body with a plurality of columns (Japanese Patent Laid-Open No. 10-195937), pipe with a spiral groove cut on the outer surface (Japanese Patent Laid-Open No. 11-43971), corrugated plate-shaped molded body (Japanese Patent Laid-Open No. 10-115778), etc. Has been proposed.
When these unit members are used as a rainwater storage and penetration facility which is the main application, the surroundings are appropriately covered with a sheet in order to prevent the intrusion of earth and sand. At that time, in order to accurately and reliably carry out the operation of covering the arrangement with the sheet, it is preferable that the wall surface of the arrangement becomes a flat rectangle. For this purpose, it is preferable to arrange a cylindrical body or a box body having a rectangular cross section, but this is not realized because of difficulty in molding and an area required for transportation and storage. Therefore, the proposed unit member is used so that the wall surface is flattened using a wall material or a filler as required.

JP 10-252108 A JP 63-268823 JP H09-78841 JP 11-43971 A JP 10-115778

The present invention provides a wall member required by the conventional unit member, a unit member that is a cylindrical body having a rectangular cross section that reduces the filler, and a method for improving workability when constructing an arrangement. On offer.

The first invention is formed by combining two L-shaped members having an L-shaped cross section and having through holes on the surface thereof so that the end surfaces of the L-shaped members are in contact with the side surfaces of the other L-shaped members. This is a rainwater storage and infiltration facility in which a cylindrical unit member having a rectangular cross section is placed in the basement in a two-dimensional and three-dimensional manner, tied up with a string, forming a storage space and covering the periphery of the storage space with a sheet. .
By dividing a cylindrical unit member having a rectangular cross section into two L-shaped members, if it is made of plastic, it can be molded by injection molding. In addition, if the L-shaped member has a shape that can be stacked in a nested manner, the convenience of transportation and storage is improved. By using a cylindrical unit member having a rectangular cross section, it becomes easy to bind with a string.
The second invention is a unit having a T-shaped cross section formed by combining two L-shaped members having an L-shaped cross section and having a through-hole on the surface thereof so that the cross sections of the two L-shaped members are in contact with each other at a plane-symmetrical position. This is a rainwater storage and infiltration facility in which members are two-dimensionally and three-dimensionally tied with strings in the basement to form a storage space and the periphery of the storage space is covered with a sheet. A unit member having a rectangular cross section can be easily formed. By making it a rectangular cross section, it becomes easy to bind with a string.
In this third invention, two L-shaped members having an L-shaped cross section and having a through hole on the surface thereof are connected via a flexible portion, the flexible member serves as a guide, and the end surface of the L-shaped member is the other surface. A cylindrical unit member having a rectangular cross section formed in combination so as to be in contact with the side surface of the L-shaped member is two-dimensionally and three-dimensionally arranged in the basement to form a storage space and cover the periphery of the storage space with a sheet. Rainwater storage and penetration facility. In order to improve the workability of assembling a cylindrical unit member having a rectangular cross section from two L-shaped members, the flexible portions are used as a guide by connecting them, and the L-shaped members are not separated.
The fourth aspect of the present invention has a T-shaped cross section in which two identical L-shaped members having an L-shaped cross section and having a through hole on the surface thereof are connected via a flexible portion, and the flexible member is formed as a guide. It is a rainwater storage and penetration facility in which unit members are two-dimensionally and three-dimensionally arranged underground to form a storage space and the periphery of the storage space is covered with a sheet. In order to improve the workability of assembling a unit member having a T-shaped cross section from two L-shaped members, the flexible portion is used as a guide by connecting them, and the L-shaped members are not separated. A unit member having a rectangular cross section can be easily formed.

By combining two L-shaped members of the same shape, it is possible to easily obtain a cylindrical unit member having a rectangular cross section or a unit member having a U-shaped cross section or a T-shaped cross section, and arranging them so that the shape can be a rectangular parallelepiped. Become. Therefore, there are the following effects.
1. When used in a storage and penetration facility, sheet construction is simplified.
An arrangement in which a cylindrical unit member having a rectangular cross section, a unit member having a U-shaped cross section or a T-shaped cross section is arranged has a flat wall surface, and the number of necessary members is reduced even when the shape is simple and wrapped with a sheet or the like. To do. Moreover, if it is made of plastic, injection molding or the like can be performed by using an L-shaped member.
2. Further, if the L-shaped member is nested, it can be stacked, and the convenience of transportation and storage is improved.
3. Since the L-shaped members are connected by the flexible portion, they are not separated from each other, and workability when using a cylindrical unit member or the like is improved.

Hereinafter, the present invention will be described in more detail with reference to the drawings.
FIG. 1 shows a method of forming a cylindrical unit member constituting the arrangement according to the first invention. As shown in FIG. 1a, an L-shaped member having two L-shaped cross sections is placed in a point-symmetrical position and connected so that the end face in the longitudinal direction of one L-shaped member is in contact with the side surface of another L-shaped member. Thus, a cylindrical unit member having a rectangular cross section shown in FIG.
As described later, the L-shaped member is preferably connected to the end surface and the side surface which are in contact with each other by providing means which can be connected to each other, or bonded with an adhesive, or a band or a string. .

FIG. 2 is an example showing a method of forming a cylindrical unit member constituting the arrangement according to the first invention.
Two L-shaped cross-section members are used as shown in FIG. When the unit member obtained by connecting in the orientation shown in FIG. 2a is used in the orientation shown in FIG. 1b, the vertical strength may be reduced. In this case, the orientation shown in FIG. 2b is preferable. Used in.

FIG. 3 is an example showing a method of forming unit members constituting the arrangement according to the first aspect of the present invention. A rib is provided at the end of the L-shaped member so that the end surface is covered when the tubular unit member has a rectangular cross section. Even such a cylindrical unit member that is covered with a box can be easily molded.

FIG. 4 is an example showing a method of forming unit members constituting the arrangement according to the first aspect of the present invention. It is the example which provided the taper in the edge part so that the L-shaped member used as the box shape of FIG.

FIG. 5 is an example showing a method of forming unit members constituting the arrangement according to the first aspect of the present invention. This is an example of a joint when two L-shaped members having an L-shaped cross section made of a thin material such as a metal cannot provide a joint that can be directly engaged with an end face.
FIGS. 1 to 5 are examples in which two L-shaped members are connected at positions where their cross-sections are point-symmetric with each other.

FIG. 6 shows a method for forming unit members constituting the arrangement according to the second aspect of the present invention. As shown in FIG. 6a, the two L-shaped cross-section members are placed at positions where the cross-sections are plane-symmetrical to form a U-shaped or gate-shaped unit member shown in FIG. 6b.

FIG. 7 shows an example of a method of forming unit members constituting the arrangement according to the second invention. When it is used in a gate shape as shown in FIG. 7a, there may be a problem in its strength. In such a case, it is preferably used in the direction shown in FIG. 7b.

FIG. 8 shows an example of a method for forming unit members constituting the arrangement according to the second aspect of the present invention. An L-shaped member is provided with ridges at both ends to reinforce it in strength. If the ridges are simply provided, they become bulky when they are stacked. Therefore, the ridge portion of the L-shaped member is provided with a taper to form a triangular container shape so as to be nested.
The L-shaped member shown in FIG. 8a is connected so that the container-like open surfaces are abutted to form the unit member shown in FIG. 8b.

FIG. 9 shows an example of a method for forming unit members constituting the arrangement according to the second aspect of the present invention. As shown in FIG. 9a, a unit member having a T-shaped cross section shown in FIG. The L-shaped member may be a triangular container shown in FIG.
FIG. 10 shows an example in which the leg portions of the L-shaped member have a semicircular arc shape shown in FIG. 10a or a triangular shape shown in FIG. 10b. In either case, a T-shaped unit member having cylindrical and prismatic legs shown in FIGS. 10c and 10d is obtained. At this time, the legs may be connected in the opposite direction so as to have an X shape.

The third invention will be described below with reference to the drawings.
FIG. 11 shows an example of a method for forming unit members constituting the arrangement according to the third aspect of the present invention.
As shown in the figure, two L-shaped members are connected by a flexible portion, and are connected to each other in the longitudinal direction of the L-shaped member to form a cylindrical unit member having a rectangular cross section.
When the L-shaped member is connected, the flexible portion is not disjoint because the two L-shaped members are connected to each other, and is accurately guided to the connection position.

If the material of the assembly member is a resin that can be injection-molded, the flexible portion can be formed by integrally setting the flexible portion to be thin. It is also possible to use a tape with a separate flexible part and bond the tape between the L-shaped members, including the case of a material that cannot be molded integrally, such as metal or concrete. Even if an adhesive is used for bonding the tape, it can be bonded by thermal fusion if thermal fusion is possible. Existing methods can be used as appropriate. In the case of concrete or the like, the flexible portion may be formed by embedding them as a cloth or chain having a required strength.
The purpose of the flexible portion is to connect the L-shaped members so as not to be separated, and to provide guidance when connecting the L-shaped members. The flexible portion preferably has a strength that can support the weight of the L-shaped member. Moreover, it does not need to exist over the whole connection direction of an L-shaped member, and may exist only in the both ends. It is only necessary that the above purpose is achieved.

FIG. 11 a is an example in which the flexible portion is set to a width that allows the L-shaped member to be folded back, and FIG. 11 b is a configuration in which the flexible portion is set to correspond to the thickness of the L-shaped member. In any case, the shape of the cross section of the L-shaped member is an example in which the cylindrical unit member having a square cross section shown in FIG. 11c is configured. The width of the flexible portion can be set in consideration of the shape of the joint provided at the end. The outer cross section of the cylindrical unit member is not limited to a square, but may be a rectangle. In that case, it is preferable that the long side of the rectangle is an integral multiple of the short side for the convenience of constructing the arrangement. The length of the cylindrical part is also preferably an integral multiple of the short side.

FIG. 12 shows an example of a method for forming a cylindrical unit member constituting the arrangement according to the third aspect of the present invention. The bag illustrated in FIG. 4 is similarly applied to the second invention.
11 and 12 Even if the L-shaped members are connected to each other, the connection between the L-shaped members as the cylindrical unit members is performed by providing joint means that can be connected to each other, or by adhering them with an adhesive, It is preferable to bind with a band or a string.

FIG. 13 shows an example of a method for forming unit members constituting the arrangement according to the fourth aspect of the present invention. This is an example in which two L-shaped members are connected by a flexible part and assembled into a U-shape.
Depending on the balance of the vertical, horizontal and thickness of the two side plates constituting the L-shaped member, it is preferable to lay it in a U-shape when the strength is insufficient to use it in a gate shape.

FIG. 14 shows an example of a method for forming unit members constituting the arrangement according to the fourth aspect of the present invention. This is an example of a unit member that is assembled and connected in a T shape at a position where two L-shaped members are connected by a flexible portion and their back surfaces are in contact with each other.
FIG. 15 shows an example of a method for forming unit members constituting the arrangement according to the second aspect of the present invention. In this example, two L-shaped members are connected by a flexible portion and assembled into a T shape, but the leg portion has a triangular shape. In this case, the same is true even if the legs are semicircular.

16 to 21 show an example of forming the arrangement according to the fifth aspect of the present invention.
Although the L-shaped member is a cylindrical unit member having a rectangular cross section, there is no difference from the first invention, but each L-shaped member is composed of a plate connecting the ribs.
In order to suppress or effectively use rainwater, which is the main application of the present invention, when used to secure a space for a tank, it is required to improve the storage rate, ease of manual construction, and weight reduction. In consideration of the strength in the vertical and horizontal directions, the side plate is preferably composed of ribs.

FIG. 16 shows an example in which the L-shaped member is composed of a rib and a plate. FIG. 16a shows a cylindrical unit member having a rectangular cross section after connection, and FIG. Although no through hole is provided on the side surface, it can be provided as appropriate as in FIG. When using as a core material for rainwater storage or lightweight embankment, it is preferable that there is a hole in the wall without disturbing the flow of water, but when used as a temporary structure or stage, sand or snow modeling core Is not particularly necessary.
The shape and arrangement of the ribs are not limited to a linear shape, and may be a circle or a curve. It can be determined in consideration of strength and lightness and ease of molding.

FIG. 17 shows an example in which several ridges are provided on the L-shaped member for reinforcement. As before, FIG. 17a shows the cylindrical unit member before connection, and FIG. 17b shows the cylindrical unit member after connection. By dividing the cylindrical unit member into L-shaped members, it can be easily formed even in shapes that are extremely difficult to form.

FIG. 18 is a guide for connecting the L-shaped member with the flexible portion and connecting the flexible portion to the cylindrical unit member, and facilitates the connection work.
FIG. 19 shows an example in which the flexible portions are connected in the same manner as in FIG. By setting in this way, the degree of freedom of molding is slightly improved as compared with the above case.

FIG. 20 is an example in which L-shaped members are connected by a flexible part, and the flexible part is connected as a guide between end faces to form a U-shaped unit member.
FIG. 21 is an example in which L-shaped members are connected by a flexible part, and the flexible part is used as a guide and connected by side surfaces to form a T-shaped unit member.

The unit members used in the arrangement according to the sixth invention will be described below.
The unit member is formed by connecting an assembly member in which a plurality of rigid portions and the rigid members are connected by a flexible portion, and connecting the rigid portions using the flexible portion as a guide. At this time, a case where a rigid unit not connected to the flexible portion is also connected to form a cylindrical unit member having one or a plurality of closed portions, and a unit member having a U-shaped or T-shaped open cross section without being coupled. It may become.
In either case, the rigid portion is configured by developing the unit member.
Also, each rigid part is nested so that it does not become bulky when superimposed on each other, such as flat plate, L shape, wave shape, arc (including ellipse), container shape with side taper It is a shape that can be stacked.

FIG. 22 shows an example of a method for forming unit members constituting the arrangement according to the sixth aspect of the present invention.
The figure shows an assembly member in which one L-shaped cross-section member and two flat plates are connected by a flexible portion. 22a is an example in which the width of the flexible portion is set to such an extent that each rigid portion can be folded back, and FIG. 22b is an example in which the width is set to be approximately the thickness of the rigid portion. The cylindrical unit members having the cross sections shown in FIGS. 22c and 22d are formed.
FIG. 23 shows an example of a method for forming unit members constituting the arrangement according to the sixth aspect of the present invention. FIG. 23a shows a cross-section of an assembly member in which rigid portions made of four flat plates are connected by a flexible portion. FIG. 23b shows a cross section of the formed unit member.

24 and 25 show an example of a method for forming unit members constituting the arrangement according to the sixth aspect of the present invention.
Both are examples of constituting a cylindrical unit member having two open end portions.
FIG. 26 shows an example of a method of forming a cylindrical unit member constituting the arrangement according to the sixth aspect of the present invention, and shows an open end having a triangular shape.
FIG. 27 shows an example of a method for forming unit members constituting the arrangement according to the sixth aspect of the present invention. It is an example which comprises the box-shaped unit member which has a bottom part and a cover part in an opening end surface.
FIG. 28 shows an example of a method for forming unit members constituting the arrangement according to the sixth aspect of the present invention. A trapezoidal rigid part with an open top surface and a flat plate are connected to form a cylindrical unit member having a trapezoidal cross section.

That is, when the shape of the unit member can form a flat plate and an L-shaped cross section, a corrugated cross section, a trapezoidal shape, a semicircular arc (semi-elliptical) cross section, or a cylindrical or container-like member having a taper, etc. The unit members are formed by sequentially connecting the rigid portions according to the developed view. It is necessary to have a shape that can be nested and stacked in the unfolded state.

FIG. 29 is a diagram showing a transportation / storage form of the L-shaped member and the assembly member forming the unit member of the present invention. FIG. 29 a shows a state in which L-shaped members that are assembly members of the first invention are stacked.
FIG. 29b shows a state in which two L-shaped members of the third aspect of the present invention are connected by a flexible portion and assembly members for obtaining a cylindrical unit member having a rectangular cross section are stacked.
In the second and fourth aspects of the invention, the L-shaped members are stacked in a bilaterally symmetrical manner, so that it looks the same as FIG. 29a. Further, the method of stacking the assembly members according to the fifth invention takes one of the forms shown in FIGS. 29a and 29b. In the sixth invention, the assembly state of the assembly members is basically the same.
In any case, since it is free to be folded back by the flexible portion, it becomes the same shape as a flat plate and a corrugated plate when placed on a horizontal plane. Therefore, it is possible to superimpose densely upward.

As described above, the connection between the L-shaped members which are the assembly members forming the unit member of the first invention can use existing methods such as adhesives, straps, ring zones, joints, etc., but the joints will be described below. . FIG. 30 shows an example of a joint provided on the connection surface. FIG. 30a is an example in which a cylindrical unit member having a rectangular cross section is formed by connecting the end surface and the side surface, and FIG. 30b is an example in which a unit member having a rectangular cross section is formed by connecting the end surface and the end surface.
Also, when obtaining a unit member having a T-shaped cross section, a similar joint can be provided on the connection surface.
The joints are not limited to male and female joints as shown in FIG. 30, and a method of embedding magnets may be used. It may be inserted so that the unevenness provided on the connection surface matches, and then slide to engage. Existing methods can be used in consideration of the width and shape of the connecting surface.
Further, a plurality of connection methods such as the above-described joint and stringing may be used. It is preferable to change appropriately according to the situation used.

The connection of the L-shaped member or the assembly member to the unit member in the second to sixth inventions is the same as described above. One example is shown in FIG.

Hereinafter, a method for arranging the unit members will be described.
As for the outer shape of the unit member, when the cross section is rectangular, the thickness of the rigid portion or the L-shaped member constituting the assembly member is set so that the long side is an integral multiple of the short side. The length in the longitudinal direction is preferably set to be an integral multiple of the short side. By doing so, you have more freedom in how to arrange the vertical, horizontal, and height of the unit members.

Hereinafter, for convenience of explanation, unless otherwise specified, the cylindrical unit member has a square cross section, and the length thereof will be described as being twice as long as one side of the outer square.
FIG. 32 shows an example of means for arranging the cylindrical unit members to each other. This is an example in which a concave portion and a convex portion are provided so as to overlap each other on the wall surface of the unit member, and is an example in which they are not shifted from each other when arranged. 32a, 32b, and 32c each show a cross section taken along the line AA to show the shape of the arrangement portion.
FIG. 32A is an example in which a male arrangement portion is provided on two surfaces of the unit member that are in contact with each other and a female arrangement portion is provided on the other two surfaces.
FIG. 32b is an example in which a male arrangement portion is provided on two opposing surfaces of the unit member and a female arrangement portion is provided on the other two surfaces.
FIG. 32c is an example in which a male arrangement portion is provided in the front half of the unit member and a female arrangement portion is provided in the rear half.
In this example, the male part is a crest provided on the surface of the unit member, and the female part is formed of a trough corresponding to the crest, and the male part and the female part overlap each other.
At both ends of the unit member, male and female placement portions corresponding to the placement portions can be provided as necessary. The male arrangement portion may be simply formed into a shape that can be inserted into the inner frame of the unit member.

FIG. 33 is a view showing a state in which unit members provided with male and female arrangement portions are arranged at both ends of the unit member having the arrangement portion of FIG. 33a. By overlapping in the direction of the arrow, they can be superimposed three-dimensionally. FIG. 33a shows a state of being arranged in the same direction.
FIG. 33b shows an example in which the upper and lower arrangements are orthogonal to each other. By adopting such an arrangement method, since the unit irregularities of the two unit members arranged below and the one unit member above overlap, the entire arrangement is integrated.
Further, if the unit members are divided into two in the longitudinal direction and an arrangement portion is provided at the center of the obtained square, the units placed in the vertical direction when the unit members are arranged in the horizontal direction as shown in FIG. It can also be arranged with respect to the member.

FIG. 35 shows an example of an arrangement using unit members assembled in a U shape or a T shape.
FIG. 35a and FIG. 35b are examples of an arrangement using unit members assembled in a U-shape.
FIG. 35c, FIG. 56d, and FIG. 35e are examples of arrangements using unit members assembled in a T shape. By adjusting the shape, an arrangement having wall surfaces as shown in FIGS. 35c and 35e is also possible.
These arrangements can be arranged not only in the direction shown in the figure, but also in the vertical direction.

Hereinafter, a method for constructing an arrangement using the cylindrical unit member of the present invention will be described. At this time, the cylindrical unit member has a square cross section and its length is twice that of the outer square. By doing so, the unit members can be arranged in any of the vertical, horizontal, and height directions.
FIG. 34 is an example of an arrangement. By arranging as shown in the figure, the shape of the arrangement can be easily made a rectangular parallelepiped, and there is almost no need for a wall material. In the example of this figure, it is only necessary to prepare four lids of unit members standing at four corners.
Furthermore, the strength in the vertical direction can be improved by arranging some unit members in the vertical direction and pouring concrete into the inside or inserting a core of the concrete.
If the length of the unit member is set to, for example, four times the outer length of the rectangular cross section, the unit members can be arranged in a cross-beam shape to provide an arrangement with a space inside.

The arrangement means may be a magnetic coupling by embedding or embedding a male / female joint and a magnet. Further, a method of binding a plurality of unit members such as stringing or banding may be used. Since the arrangement is an assembly of unit members, it is formed as a collection of a plurality of rectangular parallelepipeds by appropriately dividing into small blocks. Each small block can be fixed by binding with a string or a band as shown in FIG. When the arrangement is a small block, the whole is bound, and when the arrangement is large, the small block is bound.
Arrange the necessary number of bands in the necessary place, and arrange the unit members on it. When a rectangular parallelepiped block of a predetermined size is formed, it can be fixed by binding both ends of the band.
The position to be bound can be selected from the vertical, horizontal, and height directions in consideration of the arrangement direction of the unit members. Depending on the arrangement situation, the belt may be passed through the inside of the unit member without passing the band outside the arrangement. As for the binding method, if a resin band is used, both ends of the band may be thermocompression bonded, or a binding tool may be used. If necessary, a groove may be provided as appropriate so that a band is applied to the surface of the unit member along the center thereof.
Another method of binding is to cover the entire arrangement with a net from above and squeeze the net, including below or in the middle of the arrangement. It is also possible to tie up the arrangement by spreading the net and assembling the arrangement on the net so as to wrap the entire arrangement.
This method can be preferably applied to a unit member having a rectangular cross section, a U-shaped section, or a T-shaped section.

Hereinafter, the use of the arrangement will be described.
The use of the arrangement is for emergency water including fire prevention water tanks buried underground, infiltration tanks or storage tanks for the purpose of effective use of rainwater, outflow control, embankment for soft ground, infiltration pipes, infiltration U When used in applications that come into contact with water, such as for gutters, fishing reefs, and weirs in rivers, it is preferable to provide through holes on the surface of the rigid portion of the L-shaped member or assembly member as appropriate. Also, even if it is used in contact with water, this does not apply when used for underdrainage pipes. The through hole is not particularly necessary for applications where the arrangement does not come into contact with water such as a temporary stand, a movable wall, and a stage.

Hereinafter, the usage method of the arrangement will be specifically described.
FIG. 37 shows a cross section of an example of an arrangement in which unit members are arranged one-dimensionally. The arrangement is covered with crushed stone, and the periphery is covered with a water-permeable sheet, and is usually used as a permeation tube. The surface of the unit member is provided with through holes having the required area, number and arrangement.

FIG. 38 shows a storage space formed by an arrangement in which unit members are arranged two-dimensionally and three-dimensionally. By appropriately changing the type of sheet covering the periphery and the type of incidental equipment, it is used as a permeation tank, a storage tank, or a storage permeation tank that combines storage and permeation. It becomes an infiltration tank by covering with a water-permeable sheet, and becomes a storage tank by covering with a water-impervious sheet. In the case of a permeation tank, the water-permeable sheet is used by appropriately setting the width and length of the L-shaped member or the rib of the assembly member or the through-hole of the wall surface, and particularly when refilling the periphery of the tank with crushed stone. Only the top surface or not required.
For the purpose of controlling stormwater runoff, if the groundwater level is below the bottom of the tank, use a seepage tank.If the groundwater level is higher than the bottom of the tank, use a water-impervious sheet to prevent ingress of groundwater. Use as a storage tank. Moreover, when aiming at effective use of rainwater, it becomes a storage tank covered with a water-impervious sheet. The surface of the unit member is provided with through holes having the required area, number and arrangement.

FIG. 39 shows a utilization form in which the periphery of an arrangement in which unit members are three-dimensionally arranged on soft ground is covered with a sheet to prevent entry into the earth and embankment on it. In addition to embankment in a flat part, it is good also as arranging in a valley and filling up a valley with embankment and making it flat. The sheet used should be water permeable so as not to obstruct the flow of water. The surface of the unit member is provided with through holes having the required area, number and arrangement.
For the use form from the permeation tube to the embankment, the material of the unit member is preferably a light plastic or a metal such as stainless steel.

FIG. 40 is an example in which an arrangement in which unit members are three-dimensionally arranged is provided below the water surface to form a fishing reef. It is possible to change the strength of the internal water flow by appropriately changing the arrangement of the unit members. In addition, it is preferable to provide a through-hole as appropriate on the surface in order to generate a hideout for small fish and a portion where the speed of water flow is slow. For this application, a concrete unit member is preferred.

In addition, there are use forms that utilize the properties that can be easily dismantled and moved, such as the use of arrangements as underdrainage pipes and river weirs, and temporary facilities such as a stage, a stand, or an amusement park maze. In addition, the unit member can be used for water purification or water filtration by sandwiching or filling a fibrous material, a fibrous mat or the like having a large surface area.

The material of the unit member is not particularly limited, but when used for a permeation tube, a permeation tank, a storage tank, etc., it is preferably made of a resin, preferably an injection-moldable thermoplastic resin, or a reaction-die-molded pentadiene. The polymer is preferred. When using it for fishing reefs, weirs, etc., it is preferable to use metal for concrete and temporary facilities in consideration of fire safety.

The flexible part that connects the L-shaped member or the rigid part may be the same material as the L-shaped member or the rigid part, or may be a different material. It is sufficient to connect the rigid parts by bonding, embedding, etc., and have flexibility and strength that can be folded back. From fiber, plastic, metal, etc., considering the material, weight, etc. of the L-shaped member, rigid part I can decide.

These are the conceptual diagrams which show the 1st example of the unit member of this 1st invention. These are the conceptual diagrams which show the 2nd example of the unit member of this 1st invention. These are the conceptual diagrams which show the 3rd example of the unit member of this 1st invention. These are the conceptual diagrams which show the 4th example of the unit member of this 1st invention. These are the conceptual diagrams which show the 5th example of the unit member of this 1st invention. These are the conceptual diagrams which show the 1st example of the unit member of this 2nd invention. These are the conceptual diagrams which show the 2nd example of the unit member of this 2nd invention. These are the conceptual diagrams which show the 3rd example of the unit member of this 2nd invention. These are the conceptual diagrams which show the 4th example of the unit member of this 2nd invention. These are the conceptual diagrams which show the 5th example of the unit member of this 2nd invention. These are the conceptual diagrams which show the 1st example of the unit member of this 3rd invention. These are the conceptual diagrams which show the 2nd example of the unit member of this 3rd invention. These are the conceptual diagrams which show the 1st example of the unit member of this 4th invention. These are the conceptual diagrams which show the 2nd example of the unit member of this 4th invention. These are the conceptual diagrams which show the 3rd example of the unit member of this 4th invention. These are the conceptual diagrams which show the 1st example of the unit member of this 5th invention. These are the conceptual diagrams which show the 2nd example of the unit member of this 5th invention. These are the conceptual diagrams which show the 3rd example of the unit member of this 5th invention. These are the conceptual diagrams which show the 4th example of the unit member of this 5th invention. These are the conceptual diagrams which show the 5th example of the unit member of this 5th invention. These are the conceptual diagrams which show the 6th example of the unit member of this 5th invention. These are the conceptual diagrams which show the 1st example of the unit member of this 6th invention. These are the conceptual diagrams which show the 2nd example of the unit member of this 6th invention. These are the conceptual diagrams which show the 3rd example of the unit member of this 6th invention. These are the conceptual diagrams which show the 4th example of the unit member of this 6th invention. These are the conceptual diagrams which show the 5th example of the unit member of this 6th invention. These are the conceptual diagrams which show the 6th example of the unit member of this 6th invention. These are the conceptual diagrams which show the 7th example of the unit member of this 6th invention. These show the stacked state of the unit members of the present invention. These show the example of the connection joint which forms the unit member of this invention. These show the other example of the connection joint which forms the unit member of this invention. These show the example of the joint of the unit member of this invention. These show other examples of the joint of the unit member of the present invention. These show the example of arrangement | sequence of the cylindrical unit member of this invention. These show the example of arrangement | sequence of the other unit member of this invention. These show the example of the binding method of the arrangement | positioning object of this invention. These show the 1st usage method of the arrangement | positioning object of this invention. These show the 2nd utilization method of the arrangement | positioning object of this invention. These show the 3rd usage method of the arrangement | positioning object of this invention. These show the 4th usage method of the arrangement | positioning object of this invention. Shows an example of a conventional unit member.

Explanation of symbols

1 L-shaped member 2 Flexible part 3 Arrangement 4 Rigid part

Claims (5)

A cylindrical shape having a rectangular cross section formed by combining two L-shaped members having an L-shaped cross section and having through holes on the surface thereof so that the end surfaces of the L-shaped members are in contact with the side surfaces of the other L-shaped members. A rainwater storage and infiltration facility characterized in that unit members are two-dimensionally and three-dimensionally tied in a basement with a string to form a storage space and the periphery of the storage space is covered with a sheet. A unit member having a T-shaped cross section formed by combining two L-shaped members having an L-shaped cross section and having through-holes on the surface so that the cross-sections are in contact with each other at two planes in a two-dimensional manner. A rainwater storage and penetration facility characterized by three-dimensionally tying and arranging with a string, forming a storage space, and covering the periphery of the storage space with a sheet. Two identical L-shaped members having an L-shaped cross section and having a through-hole on the surface thereof are connected via a flexible portion, and the flexible member serves as a guide so that an end surface of the L-shaped member is in contact with a side surface of another L-shaped member. The rainwater is characterized in that a cylindrical unit member having a rectangular cross section formed in such a combination is arranged two-dimensionally and three-dimensionally in the basement to form a storage space and the periphery of the storage space is covered with a sheet Storage and infiltration facilities. Two identical L-shaped members having an L-shaped cross section and through-holes on the surface thereof are connected via a flexible part, and the unit member having a T-shaped cross section formed by the flexible member as a guide is two-dimensional underground A rainwater storage and infiltration facility characterized in that it is arranged three-dimensionally, forms a storage space, and covers the periphery of the storage space with a sheet. Delete

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