JP2017115438A - Storage/penetration reservoir used as penetration tank by arranging pipe material around storage tank - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a storage/penetration reservoir that uses a table-like member without requiring a wall material to be used in the periphery of a storage space.SOLUTION: In a storage/penetration reservoir that comprises a plurality of water storing materials arranged under the ground and covered by a sheet, a storage tank is installed in a central part by arranging a plurality of table-like members composed of a plate part and a cylinder part opening in the plate part and by covering the table-like members by an impervious sheet. The openings of the table-like members present in the periphery of the storage tank are blocked by arranging a pipe material in the periphery and this is used also as a penetration tank, so as to provide the storage/penetration reservoir. By arranging a pipe material around the storage tank, the need for a wall material is eliminated.SELECTED DRAWING: Figure 1

Description

The present invention relates to a rainwater outflow control facility in which aquifers are arranged and wrapped in a sheet.

A facility for controlling the outflow of rainwater or the like in which a plurality of resin-made table-like members are arranged in the basement as an aquifer to form a storage space, and the periphery of the storage space is covered with sheets. Among them, there is a storage and permeation tank that combines a storage tank that uses rainwater and a permeation tank that recharges groundwater.
For example, there are JP-A-H09-041470 and JP-A-2008-133598 as storage and permeation tanks, and the former divides the tank into upper and lower parts and uses the upper part as an infiltration tank and the lower part as a storage tank. In the latter case, the center of the tank is a storage tank and the perimeter is a permeation tank.

JP H09-041470 JP2008-133598

The present invention resides in a storage and permeation combination tank that uses a table-like member, and a combination tank that does not require a wall material to be used in the outer peripheral portion of the storage space.

The present invention relates to a storage and permeation tub in which a plurality of aquifers are arranged underground and wrapped with a sheet, and a plurality of table-like members each having a flat plate portion and a cylindrical portion opened to the flat plate portion are arranged at the center thereof. A storage tank is provided that is wrapped with a water shielding sheet, and the opening of the table-like member existing on the outer periphery of the storage tank is closed by placing a pipe around it and is used as a storage infiltration tank. The wall material was made unnecessary by arranging the pipe material around the storage tank.

In the present invention, since the pipe material is disposed around the storage tank, a wall material necessary for the outermost periphery of the storage space using the table-like member becomes unnecessary.

These are the conceptual diagrams which show the storage space of the storage penetration combined use tank which consists of the storage tank which uses the table-shaped member of this invention, and the penetration tank which uses a pipe material. These are the conceptual diagrams which show the storage space of the conventional storage penetration combined use tank which consists of a table-shaped member. These are the conceptual diagrams which show an example of a table-shaped member. These are the conceptual diagrams which show an example of a pipe material. These are the conceptual diagrams which replace the wall material of the open part of a table-shaped member with a pipe material. These are the conceptual diagrams of the rainwater outflow suppression facility using the storage penetration combined use tank of this invention.

Hereinafter, the present invention will be described in detail with reference to the drawings.
As shown in FIG. 1, the present invention is a facility for controlling the outflow of rainwater and the like that also serves as a storage infiltration, with a central tank as a storage tank for storage and an outer periphery as a storage tank for infiltration. A central storage tank surrounds a storage space obtained by arranging a table-like member with a water shielding sheet, and can store rainwater. The outer peripheral portion of the storage tank is provided with a pipe material and surrounded by a water permeable sheet to form an infiltration tank.
In the figure, the entire storage tank and permeation tank are wrapped with a water-permeable sheet.

FIG. 2 is a storage space of a conventional rainwater outflow suppression facility having the same configuration as described above.
Both the storage tank and the permeation tank are formed of a table-like member. In this case, a wall material is used on the outermost periphery of the storage tank and the infiltration tank, and the water shielding sheet expands due to the water pressure in the storage tank. I do not accept it.

FIG. 3a shows an example of a table-like member. FIG. 3b shows an example of using a table-like member. As shown in the figure, the table-like member is composed of a flat plate portion and a cylindrical leg portion that opens to the flat plate portion. The shape of the leg can be cylindrical, umebachi or other shapes. The number of legs is also arbitrarily determined. In general, the legs are tapered for nesting for convenience of storage and transportation, and the bottom is smaller than the opening. Further, as shown in FIG. 3b, the two table-like members are often used as a unit in which the bottom surfaces of the leg portions face each other.
Originally, when the table-like member forms a storage space, a large open portion is generated on the outer periphery thereof. Therefore, as shown in FIG. 2 and FIG. 5b, a wall material is used to close the open portion for the purpose of preventing the water shielding sheet from expanding due to water pressure. In the present invention, the wall is replaced with a pipe as shown in FIG. Here, FIG. 5a shows a state where the wall is replaced with a pipe, and FIG. 5b shows an example in which a conventional wall is used.

As the pipe material, one having a cross-sectional shape such as a circle, an ellipse, or a rectangle, such as a clay pipe or a permeation pipe, can be used. As shown in FIG. 4, it is preferable to use an annular material having a hole in the surface and to allow the stored rainwater to flow vertically and horizontally. Moreover, it is preferable to arrange the longitudinal direction in parallel with the open portion in order to block the open portion.
In addition, the shape, size, and number of holes on the surface of the pipe can be arbitrarily set. You may make it divide a pipe material into a pipe at the time of use.

In this rainwater outflow suppression facility, when the water stored in the infiltration tank penetrates into the ground, the storage tank is preferably provided at the center of the infiltration tank in order to make the influence on the surroundings uniform.
Rainwater may be introduced into the storage tank through a mud pool and the overflow water from the storage tank may be transferred to the infiltration tank, or may be introduced simultaneously with the storage tank and the infiltration tank.

As shown in FIG. 6, it can be used as a rainwater outflow control facility, the water in the storage tank can be used for rainwater such as sprinkling, and the infiltration tank can be used for recharge of groundwater.

DESCRIPTION OF SYMBOLS 1 Storage space 2 Storage tank 3 Osmosis tank 4 Table-shaped member 5 Tubing material 6 Wall material 7 Water-impervious sheet 8 Water-permeable sheet

Claims (1)

In a storage and permeation tank where multiple aquifers are arranged underground and wrapped with a sheet, a plurality of table-like members consisting of a flat part and a cylindrical part that opens to the flat part are arranged at the center of the tank. A storage penetration combined use tank which is provided with a storage tank wrapped with a sheet, closes an opening of a table-like member existing on the outer periphery of the storage tank with a pipe disposed around the storage tank, and serves as an infiltration tank.