JP2010048011A - Rainwater storage permeation facility having enhanced base isolation property - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide rainwater a storage permeation facility using unit members and capable of improving base isolation property. <P>SOLUTION: The rainwater storage permeation facility is constituted by forming a storage space by arranging table members having one or more leg parts opened into a rectangular flat plate part in the underground sections and inserting a sheet having elasticity of rubber into an overlapped part of a butting part of the leg parts and the flat plate part when arranging the table members to enhance the base isolation property. The sheet having elasticity of rubber can absorb shock caused when earthquake occurs and can be used without impairing its function even after the earthquake. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

The present invention belongs to seismic isolation technology for storage and penetration facilities such as rainwater.

For the purpose of suppressing the outflow of rainwater and the like, rainwater storage and infiltration facilities are widely used in which unit members made of plastic or the like are arrayed and filled in the basement, and the periphery is appropriately covered with a sheet. For this purpose, various differently shaped unit members are disclosed in, for example, Japanese Patent Laid-Open Nos. 62-101097, 62-126179, 9-296486, 10-252108, 10-115778, and 11-43971. And proposed and used in JP-A-11-222886. In any method, the unit members are arranged in the basement, the periphery thereof is wrapped with a water-permeable or water-impervious sheet, and the infiltration storage facility stores rainwater or the like in the internal space.
There is a demand for a method of improving seismic isolation so that the storage and infiltration facilities such as rainwater can be used without losing their functions even during an earthquake.

JP 62-101097 JP-A 62-126179 JP-A-9-296486 JP 10-252108 A JP 10-115778 JP 11-43971 A JP-A-11-222886

The present invention is a proposal for improving seismic isolation of a rainwater storage and penetration facility using a table-like member.

The present invention provides a storage / penetration facility such as rainwater in which a storage space is formed by arranging a table-like member having one or more legs opened in a rectangular flat plate portion in the basement, when the unit members are arranged. It is a storage and penetration facility for rainwater and the like with improved seismic isolation by inserting a rubber elastic sheet into the overlapping part of the leg part and the flat part. Seismic isolation was improved by inserting a rubber elastic sheet into the overlapping part of the flat part and the abutting part of the leg part, which is a combination part of the table-like members.

According to the present invention, since the rubber elastic sheet is inserted into the overlapping portion of the leg portion and the flat plate portion when the table-like members are arranged, the impact at the time of earthquake is absorbed by the rubber elastic sheet. Therefore, even after an earthquake, it can be used without losing its function as a storage and penetration tank. Moreover, in the tank which aims at rainwater use with a storage tank, it becomes securing of emergency water.

Hereinafter, the present invention will be described in more detail with reference to the drawings.
FIG. 1 is a conceptual diagram showing a state in which a sheet having rubber elasticity is inserted into a leg-butting portion and a flat-plate overlapping portion when arranging table-like members.
The table-like member is basically arranged in units of up, down, left and right, with the unit where the legs are abutted as a unit. Although it is possible to arrange the leg portions of the table-like member in a plan view with the legs facing down, it is preferable to use the table-like members in a state in which the leg portions are butted.

FIG. 1 shows an insertion portion of a sheet having rubber elasticity by hatching. As described above, a sheet having rubber elasticity is inserted into the leg abutting portion to which an impact is applied during an earthquake and the mating portion of the flat plate portion. Further, the leg abutting portions are provided with male joints and female joints on the bottom surfaces of the respective leg parts so that they can be engaged with each other. Therefore, the sheet inserted into the leg butting portion is provided with four holes so that the male joint can be inserted.
A sheet having a hole that is slightly larger than the hole of the leg that opens in the flat plate portion is inserted into the flat plate portion.

FIG. 2 shows the shape of the rubber elastic sheet to be inserted shown in FIG.
In the drawing, since the leg portion uses four table-like members, the sheet to be inserted into the flat plate portion has holes corresponding to the openings of the four leg portions. A circular sheet is inserted into the abutting portion of the leg portion, and a hole is provided at a location corresponding to the connection tool provided on the leg portion. In this example, since two male joints and two female joints are provided in each leg, four holes are provided. The number of leg portions of the table-like member to be used, the shape of the sheet used and the number of holes are appropriately changed according to the shape of the leg portions.

FIG. 3 is an example of a table-like member, and one or more legs are provided. The shape of the leg may be a cone shape, a polygonal pyramid shape, or another shape. Preferably, they can be nested with each other to reduce the volume of transport and storage.

The storage space is formed by arranging the table-like members vertically and horizontally, and covering the side surfaces with appropriate wall materials.
As shown in Fig. 4, the storage space is covered with a sheet to prevent intrusion of earth and sand into the storage space, and inflow pipes, outflow pipes, overflow pipes, mud accumulation, manholes, orifices, etc. It is the same as the conventional unit member that it can be used as a storage and penetration facility for rainwater or the like by providing facilities. In the case where the sheet is also used as an infiltration tank, a water-permeable sheet is used. In the case where groundwater is prevented from entering or stored rainwater is used effectively, a water-impervious sheet is also used.

The material of the table-like member can be made of an injection-moldable polyolefin such as polypropylene or a metal such as stainless steel, as in the conventional method using a unit member. The sheet can be appropriately used by combining an elastic member such as rubber or elastomer in accordance with the shape of the leg portion of the table-like member and the shape of the flat plate portion.

It is a conceptual diagram which shows the state in which the rubber elastic sheet was inserted between the table-shaped members of this invention. It is a conceptual diagram which shows the detail of a rubber elastic sheet | seat. It is a conceptual diagram of the table-shaped member used for this invention. It is a conceptual diagram of storage penetration tanks, such as rain water, using the table-like member of the present invention.

Explanation of symbols

1 Table-shaped member 2 Flat plate portion 3 Leg portion 4 Flat plate portion sheet 5 Leg portion sheet

Claims (1)

In a storage and penetration facility such as rainwater in which a storage space is formed by arranging a table-like member having one or more legs opened in a rectangular flat plate portion in the basement, the legs when the table-like members are arranged A storage and penetration facility for rainwater and the like with improved seismic isolation, with a rubber elastic sheet inserted in the overlapping part of the butt part and the flat part.

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