CN104294731A - Filter material-included permeable cement concrete sand-based brick paving system - Google Patents

Abstract

The invention relates to a pavement system for permeable cement concrete sand-based bricks with filter material, which includes sand-based permeable bricks, a permeable concrete layer, a base layer, a filter material layer, a gravel layer, a perforated pipe and a rainwater inspection well; wherein, the sand Base permeable bricks, permeable concrete layer, base layer, filter material layer and gravel layer are laid under the sidewalk sequentially from top to bottom; the perforated pipe is laid in the gravel layer and extends into the rainwater inspection well; in the rainwater inspection well There is a rainwater pipe. The permeable cement concrete sand-based brick pavement system with filter material of the present invention improves the utilization rate of rainwater, has the functions of strengthening removal of pollutants, and keeping groundwater and downstream water bodies from being polluted.

Description

A permeable cement concrete sand-based brick pavement system with filter material

【Technical field】

The invention relates to a pavement pavement system, in particular to a permeable cement concrete sand-based brick pavement system with filter material, which belongs to the technical field of drainage engineering.

【Background technique】

With the rapid development of cities, the proportion of hardened areas such as urban roads is also increasing. The permeability coefficient of these hardened sites is very small. When it rains, the runoff of hardened sites such as road surfaces is very large, which easily leads to waterlogging.

At present, although many cities lay permeable bricks on sidewalks, after the runoff seeps into the bottom of the permeable bricks, the pollutants in the runoff will seep into the groundwater and pollute the groundwater. If there is aqueduct at the bottom, the rainwater discharged will pollute the receiving water body. In short, for the paved permeable ground, the pollutants in the rainwater runoff are difficult to be effectively removed, and the environment will still be polluted.

Therefore, in order to solve the above-mentioned technical problems, it is indeed necessary to provide an advanced permeable cement concrete sand-based brick pavement system with filter material to overcome the defects in the prior art.

【Content of invention】

In order to solve the above problems, the object of the present invention is to provide a permeable cement concrete sand-based brick paving system with filter material, which has simple structure, fast water permeability, enhanced decontamination and improved rainwater utilization rate.

In order to achieve the above object, the technical solution adopted by the present invention is: a permeable cement concrete sand-based brick pavement system with filter material, which includes sand-based permeable bricks, a permeable concrete layer, a base layer, a filter material layer, a gravel layer, and a perforated pipe And a rainwater inspection well; wherein, the sand-based permeable brick, permeable concrete layer, base layer, filter material layer, and gravel layer are laid sequentially from top to bottom; the perforated pipe is laid in the gravel layer, and it extends into the rainwater inspection well; A rainwater pipe is arranged in the rainwater inspection well.

The permeable cement concrete sand-based brick pavement system with filter material of the present invention is further set as follows: the thickness of the sand-based permeable brick is 100mm; the thickness of the permeable concrete layer is 100mm; the thickness of the base is 150mm; The thickness of the filter layer is 50mm; the thickness of the gravel layer is 200mm.

The permeable cement concrete sand-based brick pavement system with filter material of the present invention is further set as follows: the diameter of the perforated pipe is DN100, buried in the gravel layer; the diameter of the rainwater inspection well is DN700.

The permeable cement concrete sand-based brick pavement system with filter material of the present invention is also set as follows: green space curbs are paved on one side of the sidewalk, and road curbs are paved on the other side.

Compared with the prior art, the present invention has the following beneficial effects:

1. Sand-based permeable bricks have a high water permeability rate, and the minimum water permeability rate is 5 times that of ordinary permeable bricks.

2. Through the filter material layer, road rainwater can be purified and the pollution of rainwater to water bodies can be reduced.

3. Multiple permeable layers have the function of water storage, which can reduce the design diameter of the municipal rainwater pipe network, thereby reducing the overall cost of the municipal rainwater pipe network.

4. When the rainy season comes, it can effectively avoid waterlogging in the city and ensure smooth urban traffic.

5. The system is conducive to replenishing groundwater and maintaining a healthy water cycle.

【Description of drawings】

Fig. 1 is a plane view of the permeable cement concrete sand-based brick pavement system of the present invention.

Fig. 2 is a cross-sectional view of the permeable cement concrete sand-based brick pavement system of the present invention.

【Detailed ways】

Please refer to the accompanying drawings 1 and 2 of the description, the present invention is a permeable cement concrete sand-based brick pavement system with filter material, which consists of a sand-based permeable brick 1, a permeable concrete layer 2, a base layer 3, and a filter material layer 4. The gravel layer 5, the perforated pipe 6 and the rainwater inspection well 7 are composed of several parts.

Wherein, the sand-based permeable brick 1, the permeable concrete layer 2, the base layer 3, the filter material layer 4, and the gravel layer 5 are successively laid under the sidewalk 8 from top to bottom. Green space curbs 81 are paved on one side of the sidewalk 8 , and road curbs 82 are paved on the other side.

Said perforated pipe 6 is laid in the gravel layer 5 , which extends into the rainwater inspection well 7 , thereby draining rainwater into the rainwater inspection well 7 .

A rainwater pipe 9 is arranged in the well of the rainwater inspection 7, and the rainwater pipe 9 is used to discharge the rainwater in the rainwater inspection 7 into the municipal pipe network.

Further, the sand-based permeable brick 1 is made of natural sand, which has higher water permeability than ordinary permeable bricks, high strength, and a thickness of 100 mm. Its main functions are high water retention, water permeability, environmental protection, safety, and high strength. Paved with sand-based permeable bricks, the road surface will not accumulate water under a certain return period of rainfall, and pedestrians will not easily slip even in rainy days, improving the safety and comfort of vehicles and pedestrians. And it has a porous structure, and natural precipitation can quickly pass through the surface to replenish groundwater resources.

The permeable concrete layer 2 is 100mm thick, and its main function is to bear weight and allow rainwater to pass through quickly. When it rains, it acts as a filter.

The base layer 3 is 150 mm thick, and its main function is to resist frost heaving, enhance the bearing capacity of the foundation, and have a filtering effect when rainwater passes through.

The filter material layer 4 is 50mm thick, and its main function is to filter and remove pollutants in the runoff, mainly by chemical adsorption and physical retention.

The gravel layer 5 is 200mm thick, and its main function is as a supporting layer.

The perforated pipe 6 has a pipe diameter of DN100 and is buried in the gravel layer. Its main function is to collect filtered rainwater and enter the rainwater inspection well through the perforated pipe.

The rainwater inspection well 7 (DN700) on the road can be used as the receiving well of the above-mentioned system, and its main function is to conduct rainwater from the perforated pipe.

When the permeable cement concrete sand-based brick pavement system with filter material of the present invention is raining, the rainwater can pass through the sand-based permeable brick 1 very quickly, and then pass through the permeable concrete layer 2, the base layer 3, the filter material layer 4, and the gravel layer 5 in sequence. , each layer has a certain filtration and purification effect, which can effectively purify the rainwater quality. The filter layer 4 removes most of the pollutants in the runoff by virtue of its chemical and physical effects. The perforated pipe 6 collects the filtered and purified rainwater and transports it to the rainwater inspection well 7, and the rainwater inspection well 7 discharges excess rainwater to the downstream water body. When the rainfall is large, part of the rainwater will be stored in the sand-based permeable brick 1, the permeable concrete layer 2, the base layer 3, the filter material layer 4, the gravel layer 5, and the perforated pipe 6, and part of the rainwater will form on the road surface Runoff.

The specific implementation above is only a preferred embodiment of this creation, and is not intended to limit this creation. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of this creation should be included in this creation. within the scope of protection.

Claims (4)

1. A sandwich filter material permeable cement concrete sand-based brick pavement system is characterized in that: it includes sand-based permeable bricks, a permeable concrete layer, a base layer, a filter material layer, a gravel layer, a perforated pipe and a rainwater inspection well; wherein, the The sand-based permeable brick, permeable concrete layer, base layer, filter material layer, and gravel layer are laid under the sidewalk sequentially from top to bottom; the perforated pipe is laid in the gravel layer, and it extends into the rainwater inspection well; There is a rainwater pipe in the well. 2. The permeable cement concrete sand-based brick pavement system with filter material as claimed in claim 1, characterized in that: the thickness of the sand-based permeable brick is 100mm; the thickness of the permeable concrete layer is 100mm; the base layer The thickness of the filter layer is 150mm; the thickness of the filter layer is 50mm; the thickness of the gravel layer is 200mm. 3. The permeable cement concrete sand-based brick pavement system with filter material according to claim 1, characterized in that: the diameter of the perforated pipe is DN100; the diameter of the rainwater inspection well is DN700. 4. The permeable cement concrete sand-based brick pavement system with filter material according to claim 1, characterized in that green space curbs are paved on one side of the sidewalk, and road curbs are paved on the other side.