Assembly type pavement system based on sponge city

Abstract

The utility model discloses an assembled pavement system based on a sponge city, which is sequentially provided with a permeable layer, a water filtering layer, an assembled structural layer and a pavement base layer from the top side to the bottom side, and further comprises a main runner, a reservoir, a water filtering tank, a water purifying tank and a spraying pipe network, vertical water seepage holes which are evenly distributed are formed in the surface of the assembly type structure layer, flow guide pipes which are transversely arranged are arranged in the assembly type structure layer, the flow guide pipes are communicated with a plurality of secondary flow channels formed in the assembly type structure layer, the secondary flow channels are perpendicular to the extending direction of the road surface, the secondary flow channels are communicated with the main flow channel, and the main flow channel is arranged in the extending direction of the road surface. The main flow channel is communicated with the water storage tank, the water storage tank is communicated with the water filtering tank, the water filtering tank is communicated with the water purifying tank, and the spraying pipe network is communicated with the water purifying tank. The water seepage and drainage device has extremely high water seepage and drainage performance, and meanwhile rainwater can be recycled and reused in time.

Description

Technical Field

[0001] This utility model belongs to the field of sponge city infiltration and drainage structure technology, and in particular relates to a prefabricated pavement system based on sponge city. Background Technology

[0002] With the acceleration of urbanization, urban stormwater management faces numerous challenges. Traditional urban road systems are inadequate in terms of stormwater drainage, easily leading to urban flooding and stormwater runoff pollution. The concept of sponge cities has emerged to address this issue. Its core lies in enabling cities to function like sponges, exhibiting good "resilience" in adapting to environmental changes and responding to natural disasters through a series of low-impact development facilities, effectively alleviating the pressure on urban stormwater management.

[0003] Currently, a series of road structures and systems proposed based on sponge cities have certain permeability and drainage properties, but their structures are relatively complex, which is not conducive to construction. They are also not very adaptable to urban management and cannot achieve the desired effect in rainwater recycling. Utility Model Content

[0004] The purpose of this utility model is to overcome the problems of the prior art by disclosing a prefabricated road system based on sponge city, which has the structural features of reasonable structure and convenient construction, and has extremely strong water infiltration and drainage performance, while also being able to recycle and reuse rainwater in a timely manner.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] A prefabricated pavement system based on sponge city, wherein the prefabricated pavement system is provided in sequence from top to bottom as follows: permeable layer, filter layer, prefabricated structural layer, and pavement base layer, and the prefabricated pavement system also includes: main road, water storage tank, filter tank, clean water tank and sprinkler network.

[0007] The surface of the prefabricated structural layer has uniformly distributed vertical permeability holes, and the interior of the prefabricated structural layer is provided with horizontally arranged guide pipes. Each guide pipe is connected to several secondary flow channels provided in the prefabricated structural layer, and the secondary flow channels are arranged perpendicular to the road surface extension direction.

[0008] Each secondary flow channel is connected to the main flow channel, which is arranged along the road surface extension direction. The main flow channel is connected to the water storage tank, the water storage tank is connected to the water filter tank, the water filter tank is connected to the clean water tank, and the spray pipe network is connected to the clean water tank.

[0009] According to a preferred embodiment, the water storage tank, water filter tank, and water purification tank are buried on the bottom side of the prefabricated structure layer.

[0010] According to a preferred embodiment, the prefabricated structural layer is formed by splicing together several prefabricated unit blocks. In the prefabricated structural layer, every 3 to 5 unit blocks are spliced ​​together to form a span, and a 3-5 cm gap structure is provided between each span. The secondary flow channel is provided at the position of each gap structure.

[0011] According to a preferred embodiment, the permeable layer is composed of porous expanded clay or permeable concrete, with a thickness of 10-15 cm, and is used for initial infiltration of rainwater.

[0012] According to a preferred embodiment, the filter layer is made of non-woven fabric or geotextile and has a thickness of 5-8 cm.

[0013] According to a preferred embodiment, the water filter tank is filled with filter material, which includes activated carbon.

[0014] According to a preferred embodiment, the water tank is equipped with a booster pump, which injects water into the spray pipe network.

[0015] According to a preferred embodiment, each sprinkler head at the end of the sprinkler network is located in the green area to be irrigated.

[0016] The aforementioned main solution of this utility model and its various further alternative solutions can be freely combined to form multiple solutions, all of which are solutions that can be adopted by this utility model and for which protection is sought. Those skilled in the art, after understanding the solution of this utility model, will realize, based on existing technology and common knowledge, that there are many combinations, all of which are technical solutions to be protected by this utility model; therefore, they are not exhaustively listed here.

[0017] The beneficial effects of this utility model are:

[0018] Based on the structural design of the prefabricated pavement system of sponge cities, this application realizes a closed-loop water resource utilization system that integrates rainwater infiltration, filtration, diversion and collection, and then rainwater purification and reuse.

[0019] This application proposes a prefabricated pavement system based on sponge cities, which is composed of multiple prefabricated structural layers 1 spliced ​​together to form the main frame of the pavement. Each prefabricated structural layer 1 is provided with a permeable layer 2 and a filter layer 3 for preliminary infiltration and filtration of rainwater. Main channels 4 are set at the edges of the prefabricated structural layers 1 to guide the flow direction of rainwater. The pavement base layer 5 serves as a basic support to ensure the stability of the entire pavement system.

[0020] Design of prefabricated structural layer: The unit blocks adopt a prefabricated design, which is convenient for installation and dismantling. The main body is prefabricated with reinforced concrete material. Vertical seepage holes with a diameter of 5-10mm are set on the surface. Horizontal diversion pipes 102 are set inside, which are connected to the seepage holes to ensure that rainwater can quickly infiltrate. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the prefabricated pavement system based on sponge cities according to this utility model;

[0022] Figure 2 This is a schematic diagram of the prefabricated structural layer and the connection relationship between each layer in the prefabricated pavement system based on sponge city according to this utility model;

[0023] Among them, 1-prefabricated structural layer, 101-water seepage hole, 102-drainage pipe, 103-reinforced concrete structure, 2-permeable layer, 3-filter layer, 4-main channel, 5-road base layer, 6-storage tank, 7-filter box, 8-clean water tank, 9-lift pump, 10-spraying network, 11-secondary channel. Detailed Implementation

[0024] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that, unless otherwise specified, the following embodiments and features described therein can be combined with each other.

[0025] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0026] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model 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 utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0027] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0028] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] Furthermore, it should be noted that unless otherwise specified, the specific structures, connections, positions, power sources, etc. involved in this utility model are all things that a person skilled in the art can know without creative effort based on the prior art.

[0030] Example 1

[0031] refer to Figure 1 As shown, this application discloses a prefabricated pavement system based on sponge city principles. This prefabricated pavement system is composed of multiple prefabricated structural layers 1, assembled to form the main structure of the pavement. Each prefabricated structural layer 1 has a permeable layer 2 and a filter layer 3 arranged sequentially above it for initial rainwater infiltration and filtration. A main flow channel 4 is provided at the edge of the prefabricated structural layer 1 to guide the flow direction of rainwater. The pavement base layer 5 serves as a fundamental support, ensuring the stability of the entire pavement system.

[0032] like Figure 2 As shown, the prefabricated structural layer 1 is made of reinforced concrete and has uniformly distributed vertical seepage holes 101 on its surface, with a diameter of approximately 5-10 mm, to ensure rapid rainwater infiltration. Horizontally arranged guide pipes 102, with a diameter of approximately 15-30 cm, are installed inside to ensure smooth rainwater flow to designated areas. Each span in the prefabricated structural layer 1 consists of 3-5 unit blocks joined together, with a 3-5 cm gap between each span. A longitudinally arranged secondary flow channel 11 is installed at the gap to collect rainwater from the guide pipes 102 into the main flow channel 4.

[0033] The uppermost permeable layer 2 is composed of porous expanded clay or permeable concrete, with a thickness of approximately 10-15 cm, for initial rainwater infiltration. The filter layer 3 between the structural layer 1 and the permeable layer 2 uses non-woven fabric or geotextile with good filtration performance, with a thickness of approximately 5-8 cm, effectively filtering impurities from the rainwater. The main road 4 is a precast reinforced concrete structure, and the road base 5 uses a compacted subgrade or crushed stone layer, with a thickness of approximately 20-30 cm, providing a solid supporting foundation.

[0034] A water storage tank 6 is installed at a suitable location on the road surface system to store pre-treated rainwater. A filter tank 7 is installed at the outlet of the water storage tank 6 and is filled with filter media such as activated carbon to further purify the rainwater. A clean water tank 8 is used to store the purified rainwater for subsequent use. A booster pump 9 is installed inside the clean water tank 8 and connected to the sprinkler network 10 through pipes to transport the purified rainwater to areas requiring irrigation or cleaning. The sprinkler network 10 consists of main pipes and branch pipes, and the sprinklers are rotating nozzles with good atomization effect to ensure that rainwater can be sprayed evenly to the target area.

[0035] The construction process for the prefabricated pavement system based on sponge cities, as proposed in this application, can be as follows:

[0036] 1. Basic processing

[0037] The construction area should be cleaned and leveled to ensure a firm and flat surface. According to design requirements, the road base layer 5 should be treated, such as by compacting the subgrade or laying a crushed stone subbase, with a thickness controlled within the range of 20-30 cm, to ensure the load-bearing capacity and stability of the base layer.

[0038] 2. Prefabricated structural layer installation

[0039] The prefabricated modular structure layer 1 is lifted to the designated position using a crane and assembled according to the designed splicing method. During the splicing process, ensure that the gaps between the modular structure layers 1 are uniform, generally controlled within the range of 2-3 mm, to guarantee overall flatness and sealing. Rubber pads or sealing strips are placed between the bottom of the modular structure layer 1 and the base layer to prevent rainwater leakage.

[0040] 3. Laying of permeable and filter layers

[0041] Inside the prefabricated structural layer 1, a permeable layer 2 is first laid, with porous expanded clay or permeable concrete evenly spread on the surface of the prefabricated structural layer 1, with a thickness controlled within the range of 10-15 cm. Then, a filter layer 3 is laid on top of the permeable layer 2, with non-woven fabric or geotextile smoothly covering the permeable layer 2, ensuring that the filter layer 3 is tightly bonded to the permeable layer 2 without wrinkles or gaps.

[0042] 4. Installation of main flow channel and secondary flow channel

[0043] At the edge of the prefabricated structural layer 1, the precast reinforced concrete main channel 4 is fixed to the edge of the prefabricated structural layer 1 with bolts or cement mortar to ensure a tight connection between the main channel 4 and the prefabricated structural layer 1, preventing water leakage. Inside the prefabricated structural layer 1, secondary channels 11 are set according to the distribution of rainwater. The secondary channels 11 can be small guide pipes or prefabricated trench structures to guide rainwater to the main channel 4.

[0044] The working principle of the prefabricated pavement system based on sponge cities in this application includes:

[0045] 1. Rainwater infiltration and filtration: The prefabricated pavement system of this application can effectively intercept mud, sand, debris and some pollutants in rainwater through the multi-stage infiltration and filtration of the permeable holes 101, permeable layer 2 and filter layer 3 on the surface of the prefabricated structural layer 1, so that rainwater can quickly infiltrate into the ground, replenish groundwater, alleviate urban flooding problems, improve rainwater quality and reduce rainwater runoff pollution.

[0046] 2. Rainwater Collection and Storage: After preliminary treatment, rainwater is collected through secondary channel 11 and main channel 4 and then flows into reservoir 6 for storage. The reservoir 6 enables the effective collection and utilization of rainwater resources, avoids waste, and improves water resource utilization efficiency.

[0047] 3. Rainwater Recycling: After further purification treatment in the filter tank 7, the rainwater in the storage tank 6 flows into the clean water tank 8. The booster pump 9 delivers the purified rainwater to the sprinkler network 10 for urban greening irrigation, road cleaning, landscape water replenishment, etc., realizing the recycling of rainwater, reducing the city's dependence on traditional water sources such as tap water, and saving water resources and water costs.

[0048] 4. Flood control and drainage: In rainy weather, this prefabricated road system can quickly drain rainwater into secondary channels 11 and main channels 4, and guide rainwater to designated areas, effectively reducing the pressure on the urban drainage system, reducing the risk of urban flooding, and improving the city's flood control and drainage capabilities.

[0049] 5. Environmental Improvement: The application of this system not only solves the problem of urban rainwater management but also has a positive impact on the urban ecological environment. Through rainwater infiltration and collection, it increases the area of ​​green space and water bodies in the city, improves the urban microclimate, reduces the urban heat island effect, and enhances the quality of the urban ecological environment, creating a more comfortable and livable living environment for citizens.

[0050] 6. The prefabricated structure adopted by this application system is easy to construct and dismantle. It can not only adapt to various complex terrains and spatial constraints, but also quickly complete the transformation of space and interface when urban planning changes, effectively improving the flexibility and adaptability of urban planning and management.

[0051] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A prefabricated pavement system based on sponge city principles, characterized in that: The prefabricated pavement system is provided with the following components in sequence from top to bottom: permeable layer (2), filter layer (3), prefabricated structure layer (1), and pavement base layer (5). The prefabricated pavement system also includes: main road (4), water storage tank (6), filter tank (7), clean water tank (8), and sprinkler network (10). The surface of the prefabricated structural layer has uniformly distributed vertical permeation holes (101), and the interior of the prefabricated structural layer is provided with transversely arranged guide pipes (102). Each guide pipe (102) is connected to a number of secondary flow channels (11) provided in the prefabricated structural layer (1). The secondary flow channels (11) are arranged perpendicular to the road surface extension direction. Each secondary flow channel (11) is connected to the main flow channel (4), which is set along the road surface extension direction. The main flow channel (4) is connected to the water storage tank (6), which is connected to the water filter tank (7), which is connected to the clean water tank (8), and the spray pipe network (10) is connected to the clean water tank (8).

2. The prefabricated pavement system based on sponge cities as described in claim 1, characterized in that, The water storage tank (6), water filter tank (7), and water purification tank (8) are buried on the bottom side of the prefabricated structure layer (1).

3. The prefabricated pavement system based on sponge cities as described in claim 1, characterized in that, The prefabricated structural layer (1) is formed by splicing together several prefabricated unit blocks. In the prefabricated structure layer (1), every 3 to 5 unit blocks are spliced ​​together to form a span, and a 3-5cm gap structure is provided between each span. The secondary flow channel (11) is set at the position of each gap structure.

4. The prefabricated pavement system based on sponge cities as described in claim 1, characterized in that, The permeable layer (2) is composed of porous ceramsite or permeable concrete with a thickness of 10-15cm, and is used for the initial infiltration of rainwater.

5. The prefabricated pavement system based on sponge cities as described in claim 1, characterized in that, The filter layer (3) is made of non-woven fabric or geotextile and has a thickness of 5-8cm.

6. The prefabricated pavement system based on sponge cities as described in claim 1, characterized in that, The water filter tank (7) is filled with filter material, including activated carbon.

7. The prefabricated pavement system based on sponge cities as described in claim 1, characterized in that, The water tank (8) is equipped with a booster pump (9), which injects water into the spray pipe network (10).

8. The prefabricated pavement system based on sponge cities as described in claim 7, characterized in that, Each nozzle at the end of the sprinkler network (10) is located in the green area to be irrigated.

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