JP4716112B2 - A storage and infiltration facility with an inclined foundation surface - Google Patents

Description

The present invention belongs to the technology of a water storage and penetration facility in which unit members are connected.

For the purpose of controlling the outflow of rainwater, there is a storage infiltration facility that places unit members such as tables, containers, or pipes made of plastic in the basement to secure storage space and temporarily store rainwater. It is popular. Various shapes of member, for example, Japanese Patent Application No. Sho 62-101097 for this purpose, Japanese Patent Application No. Sho 62-126179, Hei 9-296486, Hei 11-43971, proposed and are used, for example, Japanese Patent Application No. 10-115778 ing. In any method, a member is placed underground, and its surroundings are wrapped with a water-permeable or water-proof sheet, and a storage and penetration facility for storing rainwater in its internal space is provided.
In order to control the outflow of rainwater, wrap it with a permeable sheet when the groundwater level is low, and gradually infiltrate the stored rainwater into the basement so that the groundwater does not enter inside when the groundwater level is high. After wrapping with a water-impervious sheet and storing rainwater, it is gradually discharged into sewage or rivers.

In these rainwater storage and penetration facilities, when only roof rainwater is stored, the amount of sand and mud contained in the rainwater is extremely small, and even if it accumulates in the storage space as it is, its storage function is not greatly impaired. However, when storing rainwater flowing in through U-shaped grooves, the amount of sand and mud contained in rainwater is extremely large. If deposited in the storage space as it is, the volume of the storage space may be reduced, and the function of the storage and penetration facility may be impaired. In order to remove the sand mud accumulated in the storage space, Japanese Patent Application Laid-Open No. 2002-129640 discloses a method of providing a slope at the base of the storage space and collecting and discharging the sand mud in the lowermost layer. Forming the inclined surface on the base of the storage space using the unit member is time consuming and time consuming and is not efficient.

Japanese Patent Application No. 62-101097 Japanese Patent Application No. 62-126179 JP-A-9-296486 JP 11-43971 A Japanese Patent Application No. 10-115778 JP2002-129640

This invention exists in the proposal of the method of providing an inclination in the base surface of the rainwater storage penetration facility which connected the unit member and comprised the storage space.

The present invention, while connecting the unit member constituting the storage space in the basement, watching the storage space in the storage-percolating facility was storage space of the cover water sheet, in the longitudinal direction by vertical cross-section to the base section of the facility An inverted U-shaped member (hereinafter, abbreviated as an inverted U-shaped member) is laid in parallel and spaced, and a unit member is disposed on the inverted U-shaped member , A storage and infiltration facility having an inclined foundation surface characterized in that mortar or concrete is placed between inverted U-shaped members to provide an inclination, and sand mud flowing into the storage space is accumulated at the lower portion of the inclined surface. is there. In order to simplify the formation work of the inclined surface, the place where the inclined surface is formed and the unit member are separated, and the concrete can be placed before the unit member is arranged.

Since the inverted U-shaped members are laid in parallel on the base surface, and the inclined surfaces are provided between the inverted U-shaped members , and mortar or concrete is placed, the operation is simplified.

Hereinafter, the present invention will be described in more detail with reference to the drawings.
FIG. 1 is a conceptual diagram of a storage space of a storage and penetration facility according to the present invention. FIG. 1a is a cross-sectional view, and FIG. 1b is a cross-sectional view at AA.

As shown in FIG. 1, the storage and infiltration facility has inverted U-shaped members disposed on the base surface thereof in parallel and spaced apart, and unit members are assembled and disposed thereon. An inclined surface shown by hatching is provided between the inverted U-shaped members. The inclined surface is provided at equal intervals in parallel between the sides of the storage space having a substantially square plane. However, the inclined surface may be provided so as to become lower toward the center of the side. Good. Or you may provide an inclination so that it may become high toward the center, or you may provide in a right angle direction to a trapezoid member between parallel U-shaped members. Since the inclined surface can be provided after the inverted U-shaped member is disposed and before the unit member is assembled, the necessary inclined surface can be obtained very easily.

As shown in FIG. 2, it is preferable to provide a U-shaped groove at the lowermost part of the inclined surface to discharge the accumulated sand mud.

The inverted U-shaped member may be trapezoidal, inverted U-shaped, or any other shape as long as the unit members are stably arranged and assembled to create a gap in which concrete mortar or the like can be placed. The material of the inverted U-shaped member may be any material that has a required strength such as concrete, reinforced fiber plastic, and stainless steel, and is stable to water.

The shape of the unit member is not limited as long as it can be stably arranged and assembled on the inverted U-shaped member . In general, what is proposed and used for rainwater storage and infiltration facilities can be used. An example of the unit member is shown in FIG.

As shown in Fig. 4, wall material should be placed in this storage space , covered with an appropriate sheet, and used as a storage and infiltration facility with an inflow pipe, mud, overflow pipe, orifice, etc. as necessary. There is no substitute for conventional technology.

The material of the unit member is not particularly limited, but it is preferable to have water resistance and necessary strength, and stainless steel, thermoplastic plastic, or plastic reinforced with glass fiber can be used.

These are the conceptual diagrams of the storage space in the storage penetration facility of this invention. These are the other conceptual diagrams of the storage space in the storage penetration facility of this invention. Shows an example of a unit member. These are the conceptual diagrams in the case of using as a storage penetration | infiltration facility of this invention.

1 Inverted U-shaped member 2 Unit member 3 Inclined surface 4 U-shaped groove 5 Storage penetration facility 6 Sheet

Claims (1)

In the storage penetration facility where the storage space is constructed underground while connecting the unit members, and the storage space is covered with a sheet and used as the water storage space, the shape seen in a cross section perpendicular to the longitudinal direction of the foundation of the facility is Inverted U-shaped members are laid in parallel and spaced, and the shape viewed in a cross section perpendicular to the longitudinal direction is a unit member disposed on the inverted U-shaped member , and a cross section perpendicular to the longitudinal direction. Inclined foundation surface characterized in that sand and mud flowing into the storage space is accumulated at the lower part of the inclined surface by placing mortar or concrete between inverted U-shaped members and providing an inclination A storage and penetration facility.

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