JPH0434142A - Reserving and penetrating constructing method in ground by honeycomb plate - Google Patents

Abstract

PURPOSE:To temporarily reserve draining water and prevent the flood of draining quantity by providing drainage side-gutters provided with catch basins in proper positions along both sides of a subgrade, and laying a honeycomb plate in the ground between them. CONSTITUTION:A drainage side-gutters 3 are provided along both sides of a subgrade 1, and catch basins 4 are disposed in proper positions in the course. The catch basins 4 are mutually connected through a penetrating trench 5 charged with crushed stones. Under the penetrating trench 5, a honeycomb plate 6 is laid. The honeycomb plate 6 is formed of a honeycomb structure 6a and a permeable sheet 6b. Draining water such as rainwater is temporarily reserved in the ground, whereby the draining quantity can be suppressed to prevent disasters such as flood.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a construction method for storing and infiltrating drainage water such as rainwater into the ground using honeycomb-shaped plates.

[Conventional technology 1 Conventionally, as shown in Figure 4, the underground storage/infiltration method is to collect rainwater from the side ditches of roads, etc. into the infiltration trenches.]
There is a method that allows wastewater to flow into the ground and permeate into the ground through the seepage trench.

However, the above-mentioned conventional method has problems such as not only a low ability to penetrate into the ground but also almost no storage capacity because the effective infiltration area of the infiltration trench is small.

Conventionally, as shown in FIG. 5, there has been a system in which a side gutter such as a road and a drainage pipe are connected through a seepage trench, and a large space structure is laid over the seepage trench.

However, with the above conventional construction method, drainage water that permeates into a large space structure from the road surface passes through the structure and is discharged underground. It was impossible to store it, and there was almost no effect on suppressing the amount of wastewater. Also, if the ground surface becomes clogged,
There was a drawback that the large space of the structure could not be used effectively. Furthermore, there were other problems such as the inability to store water flowing in from the side gutters within the large space structure.

[Creation to be Solved by the Invention] The present invention has been made to solve the above-mentioned conventional problems, and its purpose is to be able to temporarily store a large amount of wastewater and to It is an object of the present invention to provide a storage/infiltration construction method using honeycomb-shaped plates, which can suppress the amount of drainage water by effectively infiltrating the inside, and can also aim at effective use of land.

[Means for Solving Eight Problems] The storage/infiltration method using honeycomb-shaped plates of the present invention lays honeycomb-shaped plates in the soil to temporarily store wastewater discharged from the drainage facility, and The honeycomb-shaped plate is characterized by being penetrated into the ground, and the honeycomb-shaped plate is composed of a thick plate-like honeycomb structure itself or a structure in which the top and bottom or one of the upper and lower parts of the honeycomb structure is covered with a water-permeable sheet. That is.

[Embodiment 1] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

In Fig. 1, reference numeral 1 indicates the road base, and if necessary, a paved road surface 2 such as concrete or asphalt is applied.
will be constructed.

Drainage ditches 3 are provided along both sides of the roadbed 1.

The M drainage gutter 3 may have a water-permeable structure at its bottom. A water collection basin 4 is arranged at an appropriate position in the middle of the drainage ditch 3, so that drainage such as rainwater that has entered the drainage ditch 3 flows into the drainage basin 4. . Two catchment basins 4 on both sides of the roadbed 1 are interconnected by a seepage trench 5 filled with crushed stone or the like. In this way, the permeation trenches 5 are arranged in parallel at appropriate intervals so as to cross the road.

A honeycomb-shaped plate 6 is laid under the roadbed 1 and the penetration trench 5. As shown in FIG. 2, the (1) nicomb-shaped plate 6 is composed of a thick plate-shaped honeycomb structure 6a and a water-permeable seam (1) 6b attached to sandwich the honeycomb structure 6a from above and below. has been done. The honeycomb structure 6a is a honeycomb-like rigid structure formed of hard plastic or the like so as to form a large number of hexagonal prism-shaped penetrating honeycomb chambers in the thickness direction, that is, in the vertical direction. direction) and has sufficient compressive strength against l! It has a large volume of voids.

On the other hand, the water-permeable sheet 6b is made of a non-woven fabric made of synthetic resin, such as geotextile, and has a structure that allows drainage such as rainwater to pass through, but prevents fine particles such as mud from penetrating.6 The honeycomb-shaped plates 6 are made to an appropriate size for convenience of side transportation, construction, etc., and are connected or stacked to the required area and thickness at the installation site. 7 is the roadbed.

Next, the function of the structure of the above embodiment will be explained.

A part of drainage such as rainwater flowing into the drainage ditch 3 from the paved surface 2 of the road passes through the water collection basin 4 and flows into the infiltration trench 5.

The drainage water that has flowed into the drainage ditch 3 and the infiltration trench 5 passes through the water-permeable sheath 6b of the honeycomb-shaped plate 6 laid below and flows into the honeycomb structure 6a. Since the honeycomb structure 6a has a large volume of voids, the inflowing wastewater is temporarily stored there.

Since a water-permeable sheet 6b is also provided on the lower side of the honeycomb structure 6a, the wastewater temporarily stored in the honeycomb structure 6a passes through the water-permeable sheet 6b and flows into the subgrade 7 below. It percolates and becomes groundwater.

The honeycomb-shaped plate of the present invention is not limited to the one described above,
It may be in the form of a thick block.

[Effect of the invention 1 (1) Floods can be suppressed by temporarily storing a large amount of drainage water such as rainwater underground, and the site area and capacity of the regulating pond can be reduced or removed. becomes possible.

(2) Since the highly strong honeycomb structure is buried underground, it is possible to construct above-ground structures such as parks, grounds, parking lots, and regulating ponds in addition to roads to make effective use of land.

(3) Not only can storage be achieved regardless of the permeability of the ground surface on the honeycomb board, but also drainage can be effectively permeated into the ground from the bottom of the honeycomb board to determine the origin of groundwater.

(4) Since the honeycomb structure is lightweight, ground subsidence can be prevented.

[Brief explanation of the drawing]

Fig. 1 is a structural explanatory diagram showing one embodiment of the present invention, Fig. 2 is a partially cutaway perspective view of a honeycomb-shaped plate, Fig. 3 is an explanatory diagram of the operation, and Figs. 4 and 5 are respectively conventional It is an explanatory diagram of the construction method. 1... Roadbed, 2... Paving, 3... Drainage ditch, 4
. . . Water collection basin, 5. Infiltration trench, 6. Honeycomb shaped plate, 6a. Honeycomb structure, 6b. Water permeable sheet, 7. Roadbed.

Claims (1)

[Claims] 1. A storage using a honeycomb-shaped plate, characterized in that the honeycomb-shaped plate is laid in the soil to temporarily store wastewater discharged from the drainage facility and allow it to permeate into the ground.・
Infiltration method. 2. The honeycomb shape according to claim 1, wherein the honeycomb shape plate is formed of a thick plate-like honeycomb structure itself or a structure in which the top and bottom or one of the upper and lower parts of the honeycomb structure is covered with a water-permeable sheet. Storage/infiltration method using boards.