Pavement structure and rainwater purification and utilization system

Abstract

The utility model discloses a pavement structure and rainwater purification and utilization system, the pavement structure comprises a pavement body, and also comprises aqueducts and drain pipes, the pavement body comprises a hardened surface layer, a cement mortar layer, a rubble layer, geotechnical cloth and a plain soil layer which are sequentially stacked from top to bottom, and the drain pipes are located in the plain soil layer and extend along the horizontal direction. The water guide pipe extends in the vertical direction, the upper end of the water guide pipe penetrates through the hardened surface layer, the lower end of the water guide pipe is communicated with the drainage pipe, and a rainwater grate is fixed to the upper end of the water guide pipe. The rainwater purification and utilization system comprises a purification reservoir and a pavement structure, and a drainage pipe of the pavement structure is connected into the purification reservoir. The road surface with the structure is a hardened road surface, rainwater on the road surface is collected through the water inlet designed in the hardened surface layer, the rainwater is gathered to the drainage pipe through the water guide pipe and directly led to the water storage layer of the purification reservoir through the drainage pipe, and the rainwater is purified through the purification reservoir and then is recycled.

Description

Technical Field

[0001] This utility model belongs to the field of rainwater harvesting and utilization technology, specifically relating to a road structure and a rainwater purification and utilization system. Background Technology

[0002] Existing pedestrian plazas with large, impermeable hardened surfaces often lead to water accumulation, especially after heavy rains, where excessive water is difficult to recede on its own. Therefore, designing a permeable pavement with a hardened surface is a pressing technical problem that needs to be solved by those skilled in the art.

[0003] In addition, existing technologies do not make good use of rainwater, and most of the rainwater is discharged into the sewers, resulting in a certain degree of waste. How to make reasonable use of processes to treat water ecologically and recycle it is also a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0004] The purpose of this invention is to overcome at least one defect in the prior art and to provide a road structure and rainwater purification and utilization system.

[0005] The technical solution of this utility model is implemented as follows: This utility model discloses a road structure, including a road body, a water guide pipe and a drainage pipe. The road body includes a hardened surface layer, a cement mortar layer, a crushed stone layer, a geotextile, and a plain soil layer stacked from top to bottom. The drainage pipe is located in the plain soil layer and extends horizontally. The water guide pipe extends vertically. The upper end of the water guide pipe penetrates the hardened surface layer, and the lower end of the water guide pipe is connected to the drainage pipe. A rain grate is fixed to the upper end of the water guide pipe.

[0006] Furthermore, the hardened surface layer is a brick and stone hardened surface.

[0007] Furthermore, the masonry hardened surface is paved with PC bricks.

[0008] Furthermore, multiple layers of geotextile are installed between the crushed stone layer and the plain soil layer.

[0009] This utility model also discloses a rainwater purification and utilization system, including a purification storage tank and a road surface structure as described above, wherein the drainage pipe of the road surface structure is connected to the purification storage tank.

[0010] Furthermore, the purification water storage tank is provided with a water storage layer, a planting soil layer, a filter layer, a first geotextile, a gravel layer, a second geotextile, and a soil layer stacked from top to bottom.

[0011] Furthermore, a pump pit is provided in the soil layer of the purification water storage tank, and a cover plate is fixed at the upper end of the pump pit. The cover plate is provided with a water passage hole for water from the gravel layer to flow into the pump pit. A water pump is provided in the pump pit and the water pump is connected to a delivery pipeline.

[0012] Furthermore, the purification water storage tank is also equipped with an overflow pipe. The first end of the overflow pipe extends out of the purification water storage tank, and the second end is buried in the purification water storage tank and connected to the drainage well. The highest position of the first end is the highest water level of the purification water storage tank.

[0013] Furthermore, the first geotextile is a permeable geotextile.

[0014] Furthermore, the second geotextile is a composite geotextile.

[0015] This utility model has at least the following beneficial effects: The road structure of this utility model includes a road surface body, a water guide pipe, and a drainage pipe. The road surface body includes, from top to bottom, a hardened surface layer, a cement mortar layer, a crushed stone layer, a geotextile layer, and a subgrade layer. The drainage pipe is located within the subgrade layer and extends horizontally. The water guide pipe extends vertically, with its upper end penetrating the hardened surface layer and its lower end connected to the drainage pipe. A rainwater grate is fixed to the upper end of the water guide pipe. The road surface structure of this utility model is a hardened road surface. Rainwater is collected from the road surface through an inlet designed in the hardened surface layer. The rainwater flows through the water guide pipe to the drainage pipe and then directly to the water storage layer of a purification and storage tank. The rainwater is purified in the purification and storage tank and then reused. This utility model solves the problem of water accumulation in pedestrian squares with large hardened surfaces by rationally utilizing the process to ecologically treat and recycle water. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the road surface structure disclosed in one embodiment of the present utility model;

[0018] Figure 2 This is a schematic diagram of the structure of a purification water storage tank disclosed in one embodiment of the present utility model.

[0019] In the attached diagram, 1 is the hardened surface layer, 2 is the rain grate, 3 is the cement mortar layer, 4 is the gravel layer, 5 is the geotextile, 6 is the plain soil layer, 7 is the water pipe, 8 is the drainage pipe, 9 is the purification water storage tank, 91 is the water storage layer, 92 is the planting soil layer, 93 is the filter layer, 94 is the first geotextile, 95 is the gravel layer of the purification water storage tank, 96 is the second geotextile, 97 is the soil layer, 98 is the pump pit, 99 is the water pump, 910 is the overflow pipe, and 911 is the overflow line. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] In the description of this invention, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0022] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; in the description of this invention, unless otherwise stated, "a plurality of" or "several" means two or more.

[0023] Example 1

[0024] See Figure 1 This utility model provides a road structure, including a road body, a water guide pipe 7, and a drainage pipe 8. The road body includes a hardened surface layer 1, a cement mortar layer 3, a crushed stone layer 4, a geotextile 5, and a plain soil layer 6 stacked from top to bottom. The drainage pipe 8 is located in the plain soil layer 6 and extends horizontally. The water guide pipe 7 extends vertically. The upper end of the water guide pipe 7 penetrates the hardened surface layer 1, and the lower end of the water guide pipe 7 is connected to the drainage pipe 8. A rainwater grate 2 is fixed to the upper end of the water guide pipe 7.

[0025] In some embodiments, the water pipe 7 is configured to be thicker at the top and thinner at the bottom.

[0026] In some embodiments, the rain grate 2 is made of stainless steel.

[0027] Furthermore, the hardened surface layer 1 is a brick and stone hardened surface.

[0028] Furthermore, the masonry hardened surface is paved with PC bricks.

[0029] Furthermore, multiple layers of geotextile 5 are provided between the crushed stone layer 4 and the plain soil layer 6. In some embodiments, three layers of geotextile 5 are provided between the crushed stone layer 4 and the plain soil layer 6.

[0030] In some embodiments, the cement mortar layer 3 is a 50mm thick 1:3 dry-hardened cement mortar. Of course, the cement mortar layer 3 of this invention is not limited to the above embodiments.

[0031] In some embodiments, the crushed stone layer 4 is made of 200mm thick crushed stone. Of course, the crushed stone layer 4 of this invention is not limited to the above embodiments.

[0032] In some embodiments, the subgrade layer 6 is formed by compacting subgrade.

[0033] In some embodiments, the water pipe 7 is made of stainless steel.

[0034] In some embodiments, the drainage pipe 8 is a PPR drainage pipe with a diameter of DN200. The drainage pipe 8 extends out of the subgrade layer 6 and leads to the purified water storage tank 9. Of course, the drainage pipe of this utility model is not limited to the above embodiments.

[0035] This invention first pre-embeds a DN200 PPR drainage pipe 8, installs a stainless steel water guide pipe 7, compacts the subgrade soil, lays geotextile, and then lays a 200mm thick layer of crushed stone. A 50mm thick 1:3 dry-hardened cement mortar is then laid on top, followed by PC bricks, and finally a stainless steel rain grate 2 is placed on top. The DN200 PPR drainage pipe 8 leads directly to a 200mm thick water storage layer 91.

[0036] Example 2

[0037] See Figure 1 and Figure 2 This utility model embodiment also discloses a rainwater purification and utilization system, including a purification storage tank 9 and a road surface structure as described in Embodiment 1, wherein the drainage pipe 8 of the road surface structure is connected to the purification storage tank 9.

[0038] Furthermore, the purification water storage tank 9 is provided with a water storage layer 91, a planting soil layer 92, a filter layer 93, a first geotextile 94, a gravel layer 95, a second geotextile 96, and a soil layer 97 stacked from top to bottom.

[0039] Furthermore, a pump pit 98 is provided within the soil layer 97 of the purified water storage tank 9. A cover plate is fixed to the upper end of the pump pit 98, and the cover plate has a water passage hole for water from the gravel layer 95 to flow into the pump pit 98. A water pump 99 is provided within the pump pit 98, and the water pump 99 is connected to a conveying pipeline. As in this embodiment, the conveying pipeline can be connected to an artificial lake or pond, etc.

[0040] Furthermore, the purification water storage tank 9 is also provided with an overflow pipe 910. The first end of the overflow pipe 910 extends out of the purification water storage tank 9, and the tail end is buried in the purification water storage tank 9 and connected to the drainage well. The highest position of the first end is the highest water level of the purification water storage tank 9.

[0041] Furthermore, the thickness of the water storage layer 91 is 200 mm. Of course, the water storage layer 91 of this invention is not limited to the above embodiments.

[0042] Furthermore, the thickness of the planting soil layer 92 is between 280 and 320 mm. In this embodiment, the thickness of the planting soil layer 92 is 300 mm. Of course, the planting soil layer 92 of this utility model is not limited to the above embodiment.

[0043] Furthermore, the thickness of the gravel layer 95 in the purification water storage tank 9 is 300mm. Of course, the gravel layer 95 in the purification water storage tank 9 of this utility model is not limited to the above embodiment.

[0044] Furthermore, the thickness of the filter layer 93 is 50 mm. The filter layer 93 is a sand filter layer 93. Furthermore, the filter layer 93 is a frosted filter layer 93. Of course, the filter layer 93 of this utility model is not limited to the above embodiments.

[0045] Furthermore, the first geotextile 94 is a permeable geotextile. Furthermore, the second geotextile 96 is a composite geotextile. The composite geotextile may be provided with openings, as needed, to accommodate the drainage holes of the cover plate, allowing water to pass through.

[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A road surface structure, comprising a road surface body, characterized in that: It also includes a water guide pipe and a drainage pipe. The road surface body includes a hardened surface layer, a cement mortar layer, a crushed stone layer, a geotextile, and a plain soil layer stacked from top to bottom. The drainage pipe is located in the plain soil layer and extends horizontally. The water guide pipe extends vertically. The upper end of the water guide pipe penetrates the hardened surface layer, and the lower end of the water guide pipe is connected to the drainage pipe. A rain grate is fixed to the upper end of the water guide pipe.

2. The road surface structure as described in claim 1, characterized in that: The hardened surface layer is a brick and stone hardened surface.

3. The road surface structure as described in claim 2, characterized in that: The masonry hardened surface is paved with PC bricks.

4. The road structure as described in claim 1, characterized in that: Multiple layers of geotextile are installed between the crushed stone layer and the plain soil layer.

5. A rainwater purification and utilization system, characterized in that: It includes a purification water storage tank and a road surface structure as described in any one of claims 1 to 4, wherein the drainage pipe of the road surface structure is connected to the purification water storage tank.

6. The rainwater purification and utilization system as described in claim 5, characterized in that: The purification water storage tank is composed of a water storage layer, a planting soil layer, a filter layer, a first geotextile, a gravel layer, a second geotextile, and a soil layer, stacked sequentially from top to bottom.

7. The rainwater purification and utilization system as described in claim 6, characterized in that: The purification water storage tank has a pump pit in the soil layer. The upper end of the pump pit is fixed with a cover plate. The cover plate has a water passage hole for water from the gravel layer to flow into the pump pit. A water pump is installed in the pump pit and is connected to a delivery pipeline.

8. The rainwater purification and utilization system as described in claim 6, characterized in that: The purification water storage tank is also equipped with an overflow pipe. The first end of the overflow pipe extends out of the purification water storage tank, and the second end is buried in the purification water storage tank and connected to the drainage well. The highest position of the first end is the highest water level of the purification water storage tank.

9. The rainwater purification and utilization system as described in claim 6, characterized in that: The first type of geotextile is a permeable geotextile.

10. The rainwater purification and utilization system as described in claim 6 or 9, characterized in that: The second type of geotextile is a composite geotextile.

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