CN220619658U

CN220619658U - Semi-permeable pavement structure with water storage function

Info

Publication number: CN220619658U
Application number: CN202321891007.8U
Authority: CN
Inventors: 张永福; 李培明; 康联国; 柳顺贵
Original assignee: CSCEC Aecom Consultant Co Ltd
Current assignee: CSCEC Aecom Consultant Co Ltd
Priority date: 2023-07-18
Filing date: 2023-07-18
Publication date: 2024-03-19
Anticipated expiration: 2033-07-18

Abstract

The utility model discloses a semi-permeable pavement structure with a water storage function, belongs to the field of road structures, and solves the problem of how to construct a sponge city. The road surface structure comprises a waterproof cushion layer, wherein a concrete grid baffle is arranged on the waterproof cushion layer, a first impermeable geotextile is laid on the upper surface of the waterproof cushion layer and the concrete grid baffle, a permeable base layer is filled on the first impermeable geotextile, a semi-permeable waterway surface layer is laid on the permeable base layer, the whole road surface structure is gradually inclined and lowered from the center of a road to two sides, drain pipes are arranged at positions of the concrete grid baffle on two sides of the road, and a plurality of permeable holes are formed in the drain pipes. Rainwater seeps to the permeable base layer downwards through the semi-permeable waterway surface layer and is stored in the permeable base layer, and redundant rainwater is discharged through drain pipes arranged on two sides of a road, so that uniform water storage in each grid of the concrete grid is ensured.

Description

Semi-permeable pavement structure with water storage function

Technical Field

The utility model belongs to the field of road structures, and particularly relates to a semi-permeable pavement structure with a water storage function.

Background

When the water accumulation phenomenon occurs in cities due to storm, traffic jam, power interruption, flooded houses and the like can be caused. Waterproofing urban roads is one of the main reasons for this.

In order to protect urban ecological environment, the measures such as sponge city and the like are created, research results in the aspect of advanced permeable pavement abroad are introduced, and the permeable pavement is researched by combining engineering application environment. As an important component of the urban drainage system, it is an important matter of road design whether the urban drainage system can be effectively supported to operate smoothly. Through researches, the permeable pavement has stronger water seepage and water guide capacity, is beneficial to avoiding the problem of water accumulation on the pavement of municipal roads, and can improve the use efficiency of water resources. Therefore, how to scientifically design the permeable pavement of the municipal road is an important subject worthy of deep investigation.

The permeable pavement has full permeable, semi-permeable and drainage type permeable pavement. The semi-permeable pavement design method has the advantages that when the semi-permeable pavement is designed, quantitative rainwater can be stored in a base layer position, and the rainwater is discharged through the roadside drain pipe, so that the roadbed is prevented from being damaged and the roadbed is prevented from being affected.

Disclosure of Invention

The utility model aims to provide a semi-permeable pavement structure with a water storage function, so as to solve the problem of how to construct a sponge city.

The technical scheme of the utility model is as follows: the utility model provides a semi-permeable pavement structure with retaining function, pavement structure includes the impervious bed course, be equipped with the concrete check on the impervious bed course and keep off, the impervious bed course upper surface and concrete check keep off on laid first prevention of seepage geotechnique cloth, the base course that permeates water has been filled on the first prevention of seepage geotechnique cloth, the base course that permeates water has been laid the semi-permeable pavement surface course on the base course that permeates water, pavement structure is whole to the slope reduction gradually to both sides by the road center, be equipped with the drain pipe in the position that the concrete check kept off the road both sides, a plurality of holes of permeating water have been seted up on the drain pipe.

Further, the drain pipe is disposed longitudinally along the road.

Further, a second impermeable geotextile is laid at the bottom of the impermeable cushion layer.

The beneficial effects of the utility model are as follows:

the utility model is suitable for the construction of the semi-permeable road surface, rainwater permeates to the permeable base layer downwards through the semi-permeable road surface layer and is stored in the permeable base layer, and as the whole road surface structure gradually inclines and lowers from the road center to two sides, the water in the concrete grid at the center flows to two sides in sequence after being fully stored, and redundant rainwater is discharged through the drain pipes arranged at the two sides of the road, so that the uniform water storage in each grid of the concrete grid is ensured. Meanwhile, the concrete grid plays a supporting role on the road surface structure. The utility model can collect rainwater penetrating the road surface and the base layer, effectively prevent the rainwater from penetrating the waterproof cushion layer and the lower part, and enhance the stability of the road surface structure.

The utility model can reduce the burden of the urban drainage system and is beneficial to improving the travelling comfort and the safety of urban roads. According to the utility model, a rainwater pipeline is not required to be buried in municipal road construction, so that the cost of the rainwater pipeline is saved. The pavement structure can store a large amount of water, can improve urban thermal circulation, regulate the temperature and humidity of urban space and improve the ecology and environmental protection of municipal roads.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

fig. 2 is a plan view showing the present utility model.

In the figure: 1-a water impermeable backing layer; 2-concrete grid; 3-a water permeable substrate; 4-a semi-permeable waterway surface layer; 5-a first impermeable geotextile; 6-a drain pipe; 7-second anti-seepage geotextile.

Detailed Description

The present utility model will be described in detail with reference to the accompanying drawings.

As shown in fig. 1 and 2, a semi-permeable water-permeable pavement structure with water storage function comprises a water-impermeable cushion layer 1, a cast-in-place concrete grid 2 is arranged on the water-impermeable cushion layer 1, first impermeable geotechnical cloth 5 is paved on the upper surface of the water-impermeable cushion layer 1 and the concrete grid 2, a water-permeable base layer 3 is filled on the first impermeable geotechnical cloth 5, a semi-permeable water-path surface layer 4 is paved on the water-permeable base layer 3, the whole pavement structure is gradually inclined and reduced from the center of a road to two sides, drain pipes 6 are arranged at positions of the two sides of the road, and a plurality of water-permeable holes are formed in the drain pipes 6.

The drain pipe 6 is disposed longitudinally along the road.

A second impermeable geotextile 7 is laid at the bottom of the impermeable cushion layer 1 to strengthen the waterproof protection of the impermeable cushion layer 1.

The construction steps are as follows:

A. and a first impermeable geotextile 7 is arranged at the position from the roadbed construction to the roadbed top.

B. The waterproof cushion layer 1 is paved by adopting a waterproof material, the layer surface of the waterproof cushion layer 1 is cleaned up, a concrete pouring template is placed and fixed, a concrete grid 2 is poured, the concrete grid 2 is in a cast-in-situ rectangular closed grid shape, the grid width is 10cm, and the height accounts for 1/2-2/3 of the thickness of the waterproof base layer 3.

C. After the concrete grid 2 meets the strength, the template is removed, and the working face is cleaned. To prevent rainwater from penetrating the impermeable cushion layer 1, a first impermeable geotextile 5 is spread in a full road width, then a drain pipe 6 is longitudinally arranged along the road, a permeable base layer 3 is filled with permeable materials (such as graded gravel or crushed stone), and the permeable base layer is spread to the top elevation of the base layer.

D. After the permeable base layer 3 is paved, according to the design requirement,

rainwater seeps to the permeable base layer 3 downwards through the semi-permeable waterway surface layer 4 and is stored in the permeable base layer 3, and as the whole pavement structure is gradually inclined and reduced from the road center to two sides, water in the concrete grid 2 at the center can flow to two sides in sequence after being fully stored, and redundant rainwater is discharged through the drain pipes 6 arranged at two sides of the road, so that uniform water storage in each grid of the concrete grid 2 is ensured. The concrete grid 2 not only plays roles in retaining water and uniformly storing water, but also plays a role in supporting a pavement structure. In addition, the macroporous pavement structure also contributes to the noise reduction performance of the pavement.

Claims

1. Semi-permeable pavement structure with water storage function, its characterized in that: the road surface structure includes waterproof bed course (1), be equipped with concrete check on waterproof bed course (1) and keep off (2), waterproof bed course (1) upper surface and concrete check keep off (2) upper surface and have laid first prevention of seepage geotechnique cloth (5), first prevention of seepage geotechnique cloth (5) are last to be filled and have been constructed basic unit (3) of permeating water, have been laid on basic unit (3) of permeating water and have been constructed semi-permeable waterway surface course (4), the road surface structure is whole to the both sides slope reduction gradually by the road center, be equipped with drain pipe (6) in the position that concrete check kept off (2) are located the road both sides, a plurality of holes of permeating water have been seted up on drain pipe (6).

2. The semipermeable water permeable pavement structure with water storage function according to claim 1, wherein: the drain pipe (6) is longitudinally arranged along the road.

3. The semipermeable water permeable pavement structure with water storage function according to claim 1 or 2, characterized in that: a second impermeable geotextile (7) is laid at the bottom of the impermeable cushion layer (1).