Water-permeable pavement-greenbelt ecological linkage drainage system

Abstract

The utility model relates to a kind of water-permeable pavement-green belt ecological linkage drainage systems, belong to pavement drainage field, including water-permeable pavement and green belt, water-permeable pavement and green belt between being equipped with drainage curbstone;The drainage curbstone includes Ⅰ type curbstone and Ⅱ type curbstone, the inside of Ⅰ type curbstone and Ⅱ type curbstone is equipped with cavity;Between every several side-by-side arranged Ⅰ type curbstone, a Ⅱ type curbstone is arranged, and the both ends of Ⅱ type curbstone are equipped with baffle, and water storage cavity and drainage cavity are formed by separating, baffle height is less than cavity height;The left and right sides of Ⅰ type curbstone are equipped with drainage submerged hole, the left and right sides of Ⅱ type curbstone are equipped with drainage open hole and drainage submerged hole, the bottom of Ⅱ type curbstone is opened and is connected with downspout;The downside of drainage curbstone is equipped with municipal rainwater pipe, and the lower end of downspout is connected with municipal rainwater pipe.The utility model can effectively drain and store water for different rainfall, and the stored water can supply green belt plant, overall construction is simple, and economic.

Description

Technical Field

[0001] This utility model belongs to the field of road drainage, and in particular relates to an ecological linkage drainage system for permeable pavement and green belt. Background Technology

[0002] A sponge city refers to a city that, like a sponge, absorbs, stores, infiltrates, and purifies rainwater when it rains, and releases and utilizes the stored water when needed. The construction of sponge cities should adhere to principles such as ecological priority, combining natural methods with artificial measures to maximize the accumulation, infiltration, and purification of rainwater in urban areas, while ensuring urban drainage and flood control safety, thereby promoting the utilization of rainwater resources and ecological environmental protection.

[0003] Drainage curbs integrate conventional curbs and drainage functions, and when combined with permeable asphalt pavement, they can quickly drain water from the road surface during rainfall, improving the comfort and safety of pedestrians and vehicles. For example, utility model patent application number 201920764147.6 discloses a rainwater and sewage separation and storage system for drainage curbs in permeable pavement and green belts. A drainage curb and intercepting well are located between the permeable pavement and the green belt. A water storage module is embedded inside the green belt. The drainage curb has a drainage channel inside, with several drainage holes and diving holes on both sides connected to the drainage channel. The intercepting well has an inlet at the top, and sewage branch pipes and inlet pipes on the side walls. An automatic interception device that works with the sewage branch pipes is installed inside the intercepting well. The inlet is embedded in the drainage curb and connected to the drainage channel. The water storage module is connected to the intercepting well through the inlet pipe. The water storage module in this utility model can improve the utilization rate of rainfall, the self-controlled interception device can realize the separation of rainwater and sewage, and the permeable curb and permeable pavement can accelerate the construction of sponge cities.

[0004] The problems with the above-mentioned patented technology and other related technologies include: (1) they cannot solve the drainage problem when there is heavy rainfall; (2) the water resources generated by rainfall are poorly stored and utilized; and (3) the drainage system is complex and has poor implementation. Utility Model Content

[0005] The purpose of this utility model is to provide an ecologically integrated drainage system for permeable pavement and green belt to solve the problems existing in the construction of existing green belts, drainage curbs, and permeable pavements.

[0006] To achieve the objective, the following technical solution is adopted:

[0007] This utility model relates to an ecological linkage drainage system for permeable pavement and green belt, including a permeable pavement and a green belt, with drainage curb stones provided between the permeable pavement and the green belt; the drainage curb stones include type I curb stones and type II curb stones, both of which have cavities inside; a type II curb stone is provided between every few type I curb stones arranged side by side, and both ends of the type II curb stones are provided with baffles, which divide the cavities inside the several side by side type I curb stones into water storage cavities and divide the cavities inside the type II curb stones into drainage cavities, with the height of the baffles being less than the height of the cavities;

[0008] The Type I curbstone has drainage holes on its left and right sides, and the Type II curbstone has drainage holes and drainage holes on its left and right sides. The bottom of the Type II curbstone is opened and connected to a downpipe. The lower side of the drainage curbstone is provided with a municipal rainwater pipe, and the lower end of the downpipe is connected to the municipal rainwater pipe.

[0009] Preferably, a Type II curbstone is placed between every 3 to 5 Type I curbstones, and adjacent Type I curbstones (and Type I and Type II curbstones) are spliced ​​together by joints.

[0010] Preferably, a graded filter body and a reverse filter geotextile are provided between the drainage curb and the green belt, and a reverse filter geotextile is provided between the drainage curb and the permeable pavement. The reverse filter geotextile completely covers the drainage holes on both sides of the drainage curb; a dense mesh is provided on the drainage holes.

[0011] Preferably, the permeable pavement consists of a permeable asphalt surface layer and a permeable asphalt bottom layer, with an adhesive layer provided between the permeable asphalt surface layer and the permeable asphalt bottom layer.

[0012] Preferably, a cement-stabilized crushed stone base course, a roadbed, and an underlying foundation are laid sequentially from top to bottom beneath the permeable pavement, and a waterproof layer is provided between the permeable asphalt subbase and the cement-stabilized crushed stone base course; the drainage curb stone is set on the cement-stabilized crushed stone base course through a subbase.

[0013] Preferably, the municipal rainwater pipe is buried within the roadbed.

[0014] Compared with the prior art, the technical solution provided by this utility model has the following advantages:

[0015] 1. The permeable pavement-green belt ecological linkage drainage system of this utility model includes Type I curb stones and Type II curb stones. Both Type I and Type II curb stones have internal cavities. A Type II curb stone is placed between several Type I curb stones arranged side by side, and both ends of the Type II curb stone are equipped with baffles. The internal cavities of the several side by side Type I curb stones are divided into water storage cavities, and the internal cavities of the Type II curb stones are divided into drainage cavities. The height of the baffles is less than the height of the cavities. During light rain, water seeps in from the permeable pavement or green belt and flows into the water storage cavities through the drainage holes of the drainage curb stones. When the water storage cavities are full, the water overflows into the drainage cavities. During heavy rain, water flows into the drainage cavities through the drainage holes and is then directly discharged into the municipal stormwater pipe. This achieves controlled rainfall classification and high drainage efficiency.

[0016] 2. The drainage curb stones of the permeable pavement-green belt ecological linkage drainage system involved in this utility model include Type I curb stones and Type II curb stones. Type I curb stones are provided with drainage holes on the left and right sides, and Type II curb stones are provided with drainage holes and drainage holes on the left and right sides. The water in the water storage chamber can replenish the growth needs of plants in the green belt, and can also infiltrate back into the permeable pavement to reduce the pavement temperature. This allows rainwater to be stored in the permeable pavement, water storage chamber and green belt. The water storage facilities are simple and the water storage and reuse efficiency is high.

[0017] 3. The drainage curbstone involved in this utility model integrates the functions of conventional curbstone and drainage ditch, saving the construction cost of drainage ditch. The drainage curbstone is a precast resin concrete component, which is small in size and light in weight. It is constructed by prefabrication and assembly, which is fast and saves construction time and cost. Attached Figure Description

[0018] Figure 1 This is a 3D diagram of an ecologically integrated drainage system combining permeable pavement and green belt.

[0019] Figure 2 This is a 3D view of the right side of the drainage curb.

[0020] Figure 3 This is a 3D view of the left side of the drainage curb.

[0021] Figure 4 yes Figure 1 Section A view.

[0022] The diagram is labeled as follows: 1-Permeable asphalt surface layer, 2-Tack coat, 3-Permeable asphalt base layer, 4-Waterproof layer, 5-Cement-stabilized crushed stone base course, 6-Subgrade, 7-Underlying foundation, 8-Green belt, 9-Municipal storm drain, 10-Drainage curbstone, 101-Type I curbstone, 102-Type II curbstone, 103-Baffle, 104-Drainage downhole, 105-Drainage open hole, 106-Joint, 107-Downpipe, 108-Dense mesh, 11-Water storage chamber, 12-Drainage chamber, 13-Subbase, 14-Reverse filter geotextile, 15-Graded filter body. Detailed Implementation

[0023] To deepen the understanding of this utility model, the following description is provided in conjunction with the appendix. Figure 1 ~Appendix Figure 4 The embodiments of this utility model will be described in detail below. The following embodiments are implemented based on the technical solution of this utility model and provide detailed implementation methods. However, the protection scope of this utility model is not limited to the following embodiments.

[0024] Combined with appendix Figures 1-3 As shown, the present invention relates to a permeable pavement-green belt ecological linkage drainage system, which includes a permeable pavement, a drainage curb 10 and a green belt 8. The permeable pavement is composed of a 10cm thick permeable asphalt top layer 1 and a 15cm thick permeable asphalt bottom layer 3, with an adhesive layer 2 between the permeable asphalt top layer 1 and the permeable asphalt bottom layer 3.

[0025] The drainage curbstone 10 is located between the permeable pavement and the green belt 8. It is composed of 3 to 5 Type I curbstones 101 and 1 Type II curbstone 102, which are spliced ​​together alternately through joints 106. The size of a single curbstone is 300×500×800mm. Both ends of the 3 to 5 Type I curbstones 101 are equipped with baffles 103. The height of the baffles 103 is less than the height of the cavity, and the upper end of the baffles 103 leaves a distance of 10cm from the top of the inner cavity of the drainage curbstone. The baffles 103 divide the inner cavities of the Type I curbstones 101 and the Type II curbstones 102 into a water storage cavity 11 and a drainage cavity 12, respectively.

[0026] A graded filter body 15 with a thickness of 10~15cm and a reverse filter geotextile 14 are provided between the drainage curb stone 10 and the green belt 8. A reverse filter geotextile 14 is provided between the drainage curb stone 10 and the permeable pavement. The reverse filter geotextile 14 completely covers the drainage holes 104 on both sides of the drainage curb stone 10. A dense mesh net 108 is provided on the drainage holes 105.

[0027] The drainage curbstone 10 is placed on the subbase 13. A 50cm thick cement-stabilized crushed stone base course 5 and a 100cm thick roadbed 6 are laid from top to bottom under the permeable pavement. A waterproof layer 4 is provided between the permeable asphalt subbase 3 and the cement-stabilized crushed stone base course 5. The roadbed 6 is located on the underlying foundation 7.

[0028] Combined with appendix Figure 4 As shown, Type I curbstone 101 has drainage holes 104 on its left and right sides, and Type II curbstone 102 has drainage holes 105 and drainage holes 104 on its left and right sides. The bottom opening of Type II curbstone 102 is connected to the downpipe 107. The lower side of the drainage curbstone 10 is provided with a municipal rainwater pipe 9, and the lower end of the downpipe 107 is connected to the municipal rainwater pipe 9.

[0029] Combined with appendix Figures 1-4 The working principle of the permeable pavement-green belt ecological linkage drainage system involved in this utility model is described below:

[0030] When the rainfall is not heavy, rainwater falls on the permeable asphalt surface layer 1, seeps into the permeable pavement, and flows into the water storage chamber 11 through the drainage holes 104. At the same time, rainwater falling on the surface of the green belt 8 infiltrates, and some of the rainwater flows into the water storage chamber 11 through the graded filter body 15 and the reverse filter geotextile 14. The reverse filter geotextile 14 can block solid particles from entering the water storage chamber 11 and prevent the water storage chamber 11 from becoming clogged.

[0031] As the rainfall continues, the water in the water storage chamber 11 gradually fills up, and then overflows through the gap between the baffle 103 and the top of the drainage curb 10 cavity, flowing into the drainage chamber 12.

[0032] When the rainfall is heavy, the rainwater cannot infiltrate through the permeable pavement in time and forms runoff on the pavement. At this time, the rainwater flows directly into the drainage chamber 12 through the drainage opening 105 and is further discharged into the municipal rainwater pipe 9 through the downpipe 107 connected to it.

[0033] When the weather is sunny, the water stored in the water storage chamber 11 can be used to replenish the water needed by the plants in the green belt 8 through the drainage hole 104, or it can seep into the permeable pavement through the drainage hole 104 to reduce the pavement temperature and improve pavement durability and driving comfort.

[0034] The present invention has been described in detail above with reference to the embodiments. However, the description is only a preferred embodiment of the present invention and should not be considered as limiting the scope of the present invention. All equivalent changes and improvements made in accordance with the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A permeable pavement-green belt ecological integrated drainage system, comprising a permeable pavement and a green belt (8), characterized in that: A drainage curb (10) is provided between the permeable pavement and the green belt (8); the drainage curb (10) includes a type I curb (101) and a type II curb (102), both of which have cavities inside; a type II curb (102) is provided between several type I curbs (101) arranged side by side, and baffles (103) are provided at both ends of the type II curb (102) to divide the cavities inside the several type I curbs (101) arranged side by side into water storage cavities (11) and to divide the cavities inside the type II curbs (102) into drainage cavities (12), and the height of the baffles (103) is less than the height of the cavities; The Type I curbstone (101) is provided with drainage holes (104) on the left and right sides. The Type II curbstone (102) is provided with drainage holes (105) and drainage holes (104) on the left and right sides. The bottom of the Type II curbstone (102) is opened and connected to a downpipe (107). The lower side of the drainage curbstone (10) is provided with a municipal rainwater pipe (9). The lower end of the downpipe (107) is connected to the municipal rainwater pipe (9).

2. The permeable pavement-green belt ecological integrated drainage system according to claim 1, characterized in that: A Type II curbstone (102) is set between every 3 to 5 Type I curbstones (101). Adjacent Type I curbstones (101) and Type I curbstones (101) and Type II curbstones (102) are spliced ​​together by joints (106).

3. The permeable pavement-green belt ecological integrated drainage system according to claim 1, characterized in that: A graded filter body (15) and a reverse filter geotextile (14) are provided between the drainage curb (10) and the green belt (8). A reverse filter geotextile (14) is provided between the drainage curb (10) and the permeable pavement. The reverse filter geotextile (14) completely covers the drainage holes (104) on both sides of the drainage curb (10). A dense mesh net (108) is provided on the drainage hole (105).

4. The permeable pavement-green belt ecological integrated drainage system according to claim 1, characterized in that: The permeable pavement consists of a permeable asphalt surface layer (1) and a permeable asphalt bottom layer (3), with an adhesive layer (2) between the permeable asphalt surface layer (1) and the permeable asphalt bottom layer (3).

5. The permeable pavement-green belt ecological integrated drainage system according to claim 4, characterized in that: The permeable pavement is laid from top to bottom as follows: cement-stabilized crushed stone base course (5), roadbed (6) and underlying foundation (7). A waterproof layer (4) is provided between the permeable asphalt underlayer (3) and the cement-stabilized crushed stone base course (5). The drainage curb stone (10) is set on the cement-stabilized crushed stone base course (5) through a cushion layer (13).

6. The permeable pavement-green belt ecological integrated drainage system according to claim 5, characterized in that: The municipal rainwater pipe (9) is buried in the roadbed (6).

Images