JP3248316U - Rainwater treatment facilities - Google Patents

Abstract

A rainwater treatment facility that can be buried deep while maintaining a simple structure and ease of assembly is provided. [Solution] The rainwater treatment facility includes a plurality of rectangular parallelepiped rainwater treatment facility structures stacked vertically in two or more stages, and an intermediate plate 5 provided between two vertically adjacent rainwater treatment facility structures at the outermost part, the intermediate plate 5 including a frame-shaped member 5c, a plurality of rectangular plate-shaped first ribs 5d fixed to the outer peripheral surfaces of four first plate-shaped members 5a of the frame-shaped member 5c, a plurality of rectangular plate-shaped second ribs 5e connecting adjacent first ribs 5d, a plurality of rectangular plate-shaped third ribs 5f fixed to the outer peripheral surfaces of each of the second ribs 5e, a plurality of rectangular plate-shaped fourth ribs 5g connecting adjacent third ribs 5f, a plurality of rectangular second plate-shaped members 5h each extending horizontally so as to fill the horizontal surfaces of each of the rectangular parallelepiped spaces surrounded by the first to fourth ribs, and a drain hole 5j vertically penetrating each of the second plate-shaped members 5h. [Selected Figure] Figure 2

Description

This invention relates to facilities for treating rainwater and water on road surfaces (hereinafter referred to as "rainwater, etc."), and includes both facilities for storing rainwater, etc., and facilities for infiltration.

Rainwater treatment facilities are buried underground to make effective use of rainwater, prevent urban flooding caused by the sudden inflow of rainwater into rivers, and recharge groundwater to prevent land subsidence. They are buried underground as storage facilities that provide storage space for rainwater, or as infiltration facilities that temporarily store collected rainwater and then allow it to slowly infiltrate into the ground and be discharged (see, for example, Patent Document 1).

As an example of such a rainwater treatment facility, Patent Document 2 discloses an assembly for rainwater storage and infiltration facilities that is simple in structure, can be easily assembled, and has sufficient strength against horizontal earth pressure. The assembly has multiple L-shaped members, each of which is formed integrally in an L shape when viewed from above so that two rectangular plates are perpendicular to each other, aligned in a row in the same direction, and includes multiple side plate members, multiple bottom plate members, and multiple top plate members that cover the open sides, open bottom surfaces, and open top surfaces of the entire L-shaped members, and the L-shaped members are provided with reinforcing parts that provide contact surfaces with adjacent side plate members.

Patent No. 5138593 Patent No. 6706153

The above-mentioned rainwater treatment facilities are required to be buried deep, for example to a maximum depth of about 5 m, in order to save space in installation locations and maintain a high treatment capacity, especially in urban areas.

However, while the rainwater treatment facilities described in Patent Document 2 above are designed to be stronger against horizontal earth pressure, they are still not strong enough to withstand horizontal loads when buried deep, and there has been a demand for rainwater treatment facilities that allow for deep burial.

This invention was made in consideration of the problems with the conventional rainwater treatment facilities mentioned above, and aims to provide a rainwater treatment facility that can be buried deep while maintaining the same simple structure and ease of assembly as conventional facilities.

In order to achieve the above object, the present invention provides a rainwater treatment facility that includes a plurality of rectangular parallelepiped structures for rainwater treatment facilities stacked vertically in two or more stages, and an intermediate plate provided between two structures for rainwater treatment facilities that are vertically adjacent to the outermost structures among the plurality of structures for rainwater treatment facilities, the intermediate plate being made of four rectangular first plate-like members with both sides extending vertically, a frame-like member having a rectangular opening formed by the four first plate-like members as an inspection hatch, a plurality of rectangular first ribs each having one side fixed to the outer peripheral surface of each of the four first plate-like members of the frame-like member and both sides extending vertically, and adjacent first ribs. The device is characterized by having a plurality of rectangular plate-shaped second ribs fixed to the open side of each of the first ribs so that both sides are vertical, so as to connect the first ribs that are connected to the first ribs, a plurality of rectangular plate-shaped third ribs each having one side fixed to the outer peripheral surface of each of the plurality of second ribs and both sides extending in the vertical direction, a plurality of rectangular plate-shaped fourth ribs fixed to the open side of each of the third ribs so that both sides are vertical, so as to connect adjacent third ribs of the plurality of third ribs, a plurality of rectangular second plate-shaped members each extending in the horizontal direction so as to fill each horizontal surface of the rectangular parallelepiped space surrounded by the first to fourth ribs, and a plurality of drain holes each penetrating the second plate-shaped members in the vertical direction.

The rainwater treatment facility of the present invention is equipped with first to fourth ribs, and also has a plurality of rectangular second plate-shaped members extending horizontally so as to fill the horizontal surfaces of each of the rectangular parallelepiped spaces enclosed by these ribs, which increases the strength against horizontal earth pressure and enables deep burial. In addition, the facility can maintain the same simple structure and ease of assembly as conventional facilities.

In the above-mentioned storm water treatment facility, the height of the lowest storm water treatment facility structure is half the height of the upper storm water treatment facility structures, thereby further increasing the strength against horizontal earth pressure.

In addition, by providing a reinforcing member that abuts against the outer peripheral surface of the lowest stage of the structure for a storm water treatment facility, so as to surround the outer peripheral surface, the strength against horizontal earth pressure can be further increased, and by providing reinforcing concrete that abuts against the reinforcing member that surrounds the outer peripheral surface of the structure for a storm water treatment facility, so as to surround the reinforcing member, the strength can be further increased.

Furthermore, the present invention relates to an intermediate plate for a rainwater treatment facility, comprising a frame-like member made of four rectangular first plate-like members with both sides extending vertically, the rectangular opening formed by the four first plate-like members serving as an inspection hatch, a plurality of rectangular first ribs with both sides extending vertically, one side of each of which is fixed to the outer peripheral surface of each of the four first plate-like members of the frame-like member, a plurality of rectangular second ribs with both sides extending vertically, fixed to the open side of each of the first ribs so as to connect adjacent first ribs of the plurality of first ribs, and The device is characterized by having a plurality of rectangular plate-shaped third ribs, one side of which is fixed to the outer circumferential surface of each of the second ribs, both sides of which extend vertically, a plurality of rectangular plate-shaped fourth ribs, both sides of which are fixed to the open side of each of the third ribs so as to connect adjacent third ribs of the plurality of third ribs, a plurality of rectangular second plate-shaped members, each of which extends horizontally, so as to fill the horizontal surfaces of each of the rectangular parallelepiped spaces surrounded by the first to fourth ribs, and a plurality of drain holes which each penetrate vertically through each of the second plate-shaped members.

The intermediate plate of the present invention is provided with first to fourth ribs, and also includes a plurality of rectangular second plate-shaped members each extending horizontally to fill the horizontal surfaces of the rectangular parallelepiped spaces enclosed by these ribs. This increases the strength of the rainwater treatment facility against horizontal earth pressure, enables deep burial, and maintains the same simple structure and ease of assembly as conventional systems.

As described above, this invention makes it possible to provide a rainwater treatment facility that can be buried deep while maintaining the same simple structure and ease of assembly as conventional facilities.

1 is a schematic perspective view showing one embodiment of a rainwater treatment facility according to the present invention; 1 is a perspective view showing an embodiment of an intermediate plate for a rainwater treatment facility according to the present invention; 3A is a plan view of the intermediate plate shown in FIG. 2, (b) is a front view, (c) is a cross-sectional view taken along line A-A in (a), and (d) is a cross-sectional view taken along line B-B in (a). FIG. 2 is a schematic perspective view showing a modified example of the storm water treatment facility shown in FIG. 1 . FIG. 2 is a schematic perspective view showing a modified example of the storm water treatment facility shown in FIG. 1 . FIG. 6 is a schematic perspective view showing a modified example of the storm water treatment facility shown in FIG. 5 . FIG. 1 is a schematic perspective view showing an example of a conventional rainwater treatment facility.

Next, the embodiment of the present invention will be described in detail with reference to the drawings. To facilitate understanding of the configuration of the storm water treatment facility according to the present invention, a conventional storm water treatment facility will be described with reference to FIG. 7.

As shown in FIG. 7, a conventional storm water treatment facility 31 is constructed by combining multiple (5 x 5 x 3 stages) storm water treatment facility structures 32 together. As described in Patent Document 2, for example, the storm water treatment facility structure 32 is provided with a plurality of L-shaped members, each of which is formed integrally in an L-shape when viewed from above so that two rectangular plates are perpendicular to each other, aligned in a single row in the same direction, a plurality of rectangular side plate members, a plurality of rectangular bottom plate members, and a plurality of rectangular top plate members that cover the open side, open bottom, and open top surfaces of the entire plurality of L-shaped members, and the L-shaped members are provided with reinforcing parts that provide contact surfaces with the adjacent side plate members.

An inspection hatch 33 is provided in the storm water treatment facility structures 32A-32C located at the outermost part of the storm water treatment facility 31. The inspection hatch 33 utilizes the openings in the perforated upper and lower plates and middle plate (not shown) that make up the storm water treatment facility structures 32A-32C.

An inlet pipe and an outlet pipe (not shown) are connected to the structures 32D, 32E for the storm water treatment facility on the top level of the storm water treatment facility 31, and in the case of a storm water storage facility, the tank is wrapped in a waterproof sheet and a protective sheet to temporarily store the rain water in the tank, and the orifice function allows it to gradually flow out of the tank. In the case of a storm water infiltration facility, the entire tank is wrapped in an infiltration sheet to allow the rain water to infiltrate into the ground efficiently.

Next, the rainwater treatment facility according to the present invention will be described. Figure 1 shows one embodiment of the rainwater treatment facility according to the present invention. This rainwater treatment facility 1 is constructed by combining multiple (5 x 5 x 2 stages) rainwater treatment facility structures 2 together. The rainwater treatment facility structure 2 has an overall configuration similar to that of the conventional one described in Patent Document 2, and an intermediate plate is provided between the rainwater treatment facility structures 2A and 2B located at the outermost part of the rainwater treatment facility 1. The present invention is characterized by the configuration of this intermediate plate.

2 and 3, the intermediate plate 5 according to the present invention comprises a frame-shaped member 5c, a first rib 5d provided on the outer peripheral surface of the frame-shaped member 5c, a plurality of rectangular plate-shaped second ribs 5e provided to connect adjacent first ribs 5d, a third rib 5f provided on the outer peripheral surface of each of the plurality of second ribs 5e, and a plurality of rectangular plate-shaped fourth ribs 5g fixed to connect adjacent third ribs 5f. Each rib is provided with a plurality of rectangular second plate-shaped members 5h extending in the horizontal direction, and a drain hole 5j penetrates each of the rectangular second plate-shaped members 5h in the vertical direction. Furthermore, the so-called dovetail joint is made possible by the engagement of the convex portion 5k with the corresponding concave portion 5m, and the convex portion 5k is provided with a concave portion 5n into which the upper and lower ends of the L-shaped plate and I-shaped plate (not shown) placed on the intermediate plate 5 are fitted. The frame-shaped member 5c is made up of four rectangular first plate-shaped members 5a, and the rectangular opening 5b formed by these four first plate-shaped members 5a serves as the inspection hatch 3.

The intermediate plate 5 has multiple rectangular second plate members 5h on each rib to increase strength against horizontal earth pressure, and the drainage holes 5j that penetrate each rectangular second plate member 5h in the vertical direction facilitate drainage, while maintaining the same simple structure and ease of assembly as the conventional structure.

Although not shown in the figures, inlet and outlet pipes are connected to the structures 2D, 2E, etc. for the storm water treatment facility on the top level of the storm water treatment facility 1, and in the case of a storm water storage facility, the tank is wrapped in a waterproof sheet/protective sheet to temporarily store the rain water in the tank, and the orifice function allows it to gradually flow out of the tank. Also, in the case of a storm water infiltration facility, the entire tank is wrapped in an infiltration sheet to allow the rain water to infiltrate efficiently into the ground.

Next, a modified example of the storm water treatment facility 1 will be described with reference to Figure 4.

This storm water treatment facility 10 is constructed by combining multiple (5 x 5 x 3 tiers) storm water treatment facility structures 2 together, and the above-mentioned intermediate plates 5 are provided between the storm water treatment facility structures 2A and 2B, which are located at the outermost part of the storm water treatment facility 1, and between 2B and 2C.

The height of the bottommost storm water treatment facility structure 2C is half the height of the upper storm water treatment facility structures 2A and 2B, which further increases its strength against horizontal earth pressure and allows for deep burial.

Next, another modified example of the storm water treatment facility 1 will be described with reference to Figure 5.

This storm water treatment facility 11 is provided with a rectangular reinforcing member 6 that surrounds the outer periphery of the bottommost storm water treatment facility structure 2F (same height as 2A and 2B). The material of the reinforcing member 6 is not important. By providing the reinforcing member 6, the strength of the deepest part against horizontal earth pressure can be further increased.

Next, a modified example of the storm water treatment facility 11 will be described with reference to Figure 6.

This rainwater treatment facility 21 has a concrete wall 7 surrounding the outer periphery of the reinforcing member 6 of the bottom-most rainwater treatment facility structure 2C. By providing the concrete wall 7, the strength of the deepest part against horizontal earth pressure can be further increased.

The illustrated embodiments are merely examples and are not intended to limit the technical scope of the present invention.

1, 10, 11, 21 Rainwater treatment facility 2 Rainwater treatment facility structure 3 Inspection hatch 5 Intermediate plate 6 Reinforcement member 7 Concrete wall

Claims (5)

A plurality of rectangular parallelepiped structures for rainwater or the like treatment facilities stacked in two or more stages in a vertical direction;
A storm water treatment facility including: an intermediate plate provided between two storm water treatment facility structures vertically adjacent to the storm water treatment facility structure located at the outermost position among the plurality of storm water treatment facility structures;
The intermediate plate is
A frame-like member is composed of four rectangular first plate-like members each having a vertically extending surface on both sides, and a rectangular opening formed by the four first plate-like members serves as an inspection hatch;
a plurality of rectangular plate-shaped first ribs each having one side fixed to an outer peripheral surface of each of the four first plate-shaped members of the frame-shaped member and both sides extending in a vertical direction;
a plurality of rectangular plate-like second ribs fixed to the open side of each of the first ribs so that both surfaces are vertical, the second ribs connecting adjacent first ribs of the plurality of first ribs;
a plurality of rectangular plate-shaped third ribs each having one side fixed to an outer circumferential surface of each of the plurality of second ribs and both sides extending in a vertical direction;
a plurality of rectangular plate-like fourth ribs fixed to the open side surfaces of the third ribs so as to connect adjacent third ribs of the plurality of third ribs, with both surfaces extending vertically;
a plurality of rectangular second plate-like members each extending in a horizontal direction so as to fill a horizontal surface of each of the rectangular parallelepiped spaces surrounded by the first to fourth ribs;
A rainwater treatment facility characterized in that it is provided with a plurality of drainage holes each penetrating vertically through each of the second plate-shaped members. The storm water treatment facility according to claim 1, characterized in that the height of the lowest storm water treatment facility structure is half the height of the upper storm water treatment facility structure. The rainwater treatment facility according to claim 2, characterized in that it is provided with a reinforcing member that abuts against the outer peripheral surface of the lowest stage of the rainwater treatment facility structure so as to surround the outer peripheral surface. The rainwater treatment facility according to claim 3, characterized in that it is provided with reinforced concrete that abuts against the reinforcing member on the outer periphery of the lowest stage of the rainwater treatment facility structure so as to surround the reinforcing member. A frame-like member is composed of four rectangular first plate-like members each having a vertically extending surface on both sides, and a rectangular opening formed by the four first plate-like members serves as an inspection hatch;
a plurality of rectangular plate-shaped first ribs each having one side fixed to an outer peripheral surface of each of the four first plate-shaped members of the frame-shaped member and both sides extending in a vertical direction;
a plurality of rectangular plate-like second ribs fixed to the open side of each of the first ribs so that both surfaces are vertical, the second ribs connecting adjacent first ribs of the plurality of first ribs;
a plurality of rectangular plate-shaped third ribs each having one side fixed to an outer circumferential surface of each of the plurality of second ribs and both sides extending in a vertical direction;
a plurality of rectangular plate-like fourth ribs fixed to the open side surfaces of the third ribs so as to connect adjacent third ribs of the plurality of third ribs, with both surfaces extending vertically;
a plurality of rectangular second plate-like members each extending in a horizontal direction so as to fill a horizontal surface of each of the rectangular parallelepiped spaces surrounded by the first to fourth ribs;
An intermediate plate for a rainwater treatment facility, comprising a plurality of drainage holes each penetrating vertically through each of the second plate-like members.