Double-layer water filtering permeable pavement under sponge city

Abstract

The utility model relates to the technical field of sponge city pavements, and discloses a double-layer water-filtering permeable pavement structure suitable for sponge city construction, which consists of a functional surface layer, a leveling layer, an isolating layer, a double-filtering layer assembly, a structural plate, a reinforced concrete layer and a base layer. The functional surface layer integrates anti-skid textures and a hydrophobic coating, so that the safety performance is improved; rainwater gradient purification is achieved through the double-filtering-layer design, and the interlayer connection stability is strengthened by combining the inserting connection structure of the side connecting blocks and the side inserting rods and the supporting side rods. A flow guide plate, a liquid guide hole and a drainage concealed pipe are embedded in the reinforced concrete layer, an efficient guide and drainage system is constructed, and rapid infiltration and directional drainage of rainwater are achieved in cooperation with the drainage hole. According to the scheme, the technical problems that a traditional permeable pavement is poor in skid resistance, a filtering layer is prone to being blocked, the structure is prone to cracking, drainage lags and the like are solved, the pavement bearing capacity, the purification efficiency and the rainfall flood regulation and control capacity are remarkably improved, the comprehensive requirements of sponge cities are met, and remarkable ecological and engineering application value is achieved.

Description

Technical Field

[0001] This utility model relates to the field of sponge city pavement technology, specifically a permeable pavement with double-layer water filtration under sponge city construction. Background Technology

[0002] Sponge city is a new concept for urban stormwater management and water resource utilization. Its core is to achieve natural storage, infiltration, and purification of rainwater by constructing a low-impact development rainwater system. Permeable pavement is one of the key technical means. Its necessity is reflected in many aspects such as alleviating urban flooding, replenishing groundwater, improving microclimate, and ecological environmental protection. Permeable pavement, through its high porosity structure, allows rainwater to quickly infiltrate into the ground, reducing surface runoff and lowering the risk of urban flooding.

[0003] Traditional permeable pavements with existing technology have smooth surfaces that are slippery in rainy weather, and their poor hydrophobicity causes rainwater to stagnate, increasing safety hazards. They rely on a single filter layer design, which makes it easy for impurities to clog the pores. After long-term use, the permeability decreases significantly, resulting in high maintenance costs. The interlayer connections are weak, making them prone to cracking and deformation under load or thermal expansion and contraction, shortening the pavement's service life. They also lack diversion and centralized drainage designs, resulting in slow rainwater infiltration and easy water accumulation and flooding during heavy rains. Furthermore, the lack of diversion and recycling of purified rainwater leads to water waste. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a permeable pavement with double-layer filtration in sponge city construction, which solves the aforementioned technical problems of not only failing to guarantee connection stability and being prone to loosening, but also leading to a decrease in filtration efficiency.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a permeable pavement with double-layer filtration in sponge city construction, comprising:

[0008] The functional surface layer, and a leveling layer set on the lower surface of the functional surface layer, with an isolation layer added to the lower surface of the leveling layer, and a first filter layer connected to the lower surface of the isolation layer, with structural plates uniformly added to the lower surface of the first filter layer, and a second filter layer connected between adjacent structural plates, with a reinforced concrete layer added to the lower surface of the structural plate, and a base layer connected to the lower surface of the reinforced concrete layer, and a subbase layer added to the lower surface of the base layer.

[0009] Side connecting blocks are set on the left and right outer sides of the second filter layer, and side insertion holes are evenly opened on the upper surface of the side connecting blocks, and a side connecting groove is opened in the center of the inner wall of the structural plate, and the side connecting blocks are inserted and connected to the side connecting groove.

[0010] Side-insertion rods are inserted into the upper surface of the structural plate and connected to the side-insertion holes. Supporting side rods are evenly installed on the lower inner wall of the structural plate, and these rods are tightly fitted to the second filter layer. A cross plate is installed at the top of each side-insertion rod. The functional surface layer has an anti-slip texture and a hydrophobic coating. The anti-slip texture increases friction, improving the safety of pedestrians and vehicles; the hydrophobic coating reduces the adhesion of pollutants to the surface layer, facilitating rapid rainwater infiltration; the leveling layer's core function is leveling, providing a flat and solid base for the upper structure; the isolation layer effectively prevents the materials between adjacent layers from penetrating and mixing; the first and second filter layers effectively intercept sediment, leaves, fine particles, dissolved organic matter, heavy metal ions, and odorous substances, significantly improving water purification; the structural plate provides stable installation for the second filter layer. After the second filter layer, along with the side connecting block, is inserted into the side connecting groove of the structural plate, the side-insertion rod descends along the structural plate and inserts into the corresponding side-insertion hole, connecting the second filter layer to the structural plate. The cross plate can drive the side insert rod to rotate on the structural plate, and the side insert rod is in close contact with the lower surface of the second filter layer; the reinforced concrete layer can significantly improve the tensile strength, flexural strength and toughness of the pavement, and enhance the pavement's ability to resist cracking caused by heavy traffic and temperature changes; the base course can not only bear the load of the upper pavement structure, but also serve as a temporary storage and further infiltration channel for rainwater, playing a buffer and transition role, and setting up transverse and longitudinal drainage channels; the subbase course can improve the integrity and stability, and prevent damage due to uneven settlement. On the one hand, it not only ensures the stability of the connection between the structural plate and the second filter layer, but also ensures the filtration effect; on the other hand, it facilitates the disassembly and assembly of the second filter layer on the structural plate.

[0011] Preferably, the bottom end of the side insertion rod, the upper surface of the side connecting block, and the top end of the side insertion hole are all designed with an inclination. This inclination design facilitates the assembly and disassembly of the side insertion rod, the side connecting block, and the side insertion hole.

[0012] Preferably, guide plates are uniformly provided on the upper surface of the reinforced concrete layer, and the guide plates are generally triangular in design. The guide plates guide the flow of rainwater passing through the second filter layer, thereby preventing some rainwater from remaining on the upper surface of the reinforced concrete layer.

[0013] Preferably, the upper surface of the reinforced concrete layer is uniformly provided with liquid guiding holes, and two adjacent sets of guide plates are located on both sides of the top of the liquid guiding holes. The guide plates guide the rainwater passing through the second filter layer to the liquid guiding holes, allowing the rainwater to fall through the holes.

[0014] Preferably, the inner cavity of the reinforced concrete layer is uniformly equipped with drainage pipes, and water inlets are uniformly formed on the upper surface of the drainage pipes, with the water inlets connected to the liquid guiding holes. Rainwater enters the drainage pipes along the liquid guiding holes and the water inlets.

[0015] Preferably, both ends of the drainage pipe are provided with drainage holes, which extend to the outside of the reinforced concrete layer. Rainwater in the drainage pipe can flow outward through the drainage holes, allowing it to flow into the drainage channels on the base layer, thereby ensuring that rainwater can infiltrate downward evenly and quickly.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, this utility model provides a permeable pavement with double-layer water filtration under sponge city construction, which has the following beneficial effects:

[0018] This sponge city features a double-layer permeable pavement with enhanced anti-slip texture and hydrophobic coating on the functional surface layer. This effectively improves the pavement's anti-slip performance, ensuring pedestrian and vehicle safety, while the hydrophobic properties facilitate rapid rainwater infiltration. The isolation layer beneath the leveling layer prevents moisture and impurities from penetrating and eroding the underlying structure, extending the pavement's lifespan. The double-layer filter structure (first and second filter layers) efficiently filters impurities and pollutants from rainwater, purifying the water and enabling natural purification and reuse of rainwater resources. The structural panels, side connecting blocks, side inserts, side grooves, and side holes enhance the stability and robustness of the overall pavement structure. The supporting side rods fit tightly against the second filter layer, further stabilizing its position. The guide plates and drainage holes on the upper surface of the reinforced concrete layer guide rainwater to infiltrate evenly, improving drainage efficiency. The internal drainage pipes and holes quickly discharge rainwater into the municipal drainage system, preventing waterlogging and significantly enhancing the city's ability to cope with extreme weather events such as heavy rain, thus contributing to sponge city construction and sustainable urban ecological development. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the structural plate and its connection structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the separation structure between the structural plate and the second filter layer of this utility model;

[0022] Figure 4 This is a schematic diagram of the separation structure of the side insertion rod and the side material block of this utility model;

[0023] Figure 5 This is a schematic diagram of the side insertion rod structure of this utility model;

[0024] Figure 6 This is a schematic cross-sectional view of the reinforced concrete layer of this utility model.

[0025] In the diagram: 1. Functional surface layer; 2. Leveling layer; 3. Isolation layer; 4. First filter layer; 5. Structural plate; 6. Second filter layer; 7. Reinforced concrete layer; 8. Base layer; 9. Subbase layer; 10. Side connecting groove; 11. Side insert rod; 12. Supporting side rod; 13. Guide plate; 14. Side connecting block; 15. Side insert hole; 16. Cross plate; 17. Liquid guiding hole; 18. Drainage pipe; 19. Water inlet hole; 20. Drainage hole. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] This utility model provides a technical solution: a permeable pavement with double-layer filtration under sponge city construction, comprising: (See details) Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The functional surface layer 1 and the leveling layer 2 disposed on the lower surface of the functional surface layer 1, and the lower surface of the leveling layer 2 is provided with an isolation layer 3, and the lower surface of the isolation layer 3 is connected with a first filter layer 4, and the lower surface of the first filter layer 4 is uniformly provided with a structural plate 5, and the adjacent structural plates 5 are connected with a second filter layer 6, and the lower surface of the structural plate 5 is provided with a reinforced concrete layer 7, and the lower surface of the reinforced concrete layer 7 is connected with a base layer 8, and the lower surface of the base layer 8 is provided with a subbase layer 9.

[0028] Side connecting blocks 14 are disposed on the left and right outer sides of the second filter layer 6, and side insertion holes 15 are evenly opened on the upper surface of the side connecting blocks 14, and a side connecting groove 10 is opened in the center of the inner wall of the structural plate 5, and the side connecting blocks 14 are inserted and connected to the side connecting groove 10.

[0029] Side insert rods 11 are inserted into the upper surface of the structural plate 5 and connected to side insert holes 15. Supporting side rods 12 are evenly installed on the lower inner wall of the structural plate 5 and are tightly fitted to the second filter layer 6. A cross plate 16 is installed at the top of the side insert rods 11. The surface of the functional surface layer 1 has an anti-slip texture and a hydrophobic coating. The anti-slip texture increases friction, improving the safety of pedestrians and vehicles; the hydrophobic coating reduces the adhesion of pollutants to the surface layer, facilitating rapid rainwater infiltration; the leveling layer 2's core function is leveling, providing a flat and solid base for the upper structure; the isolation layer 3 effectively prevents the materials between adjacent layers from penetrating and mixing; the first filter layer 4 and the second filter layer 6 effectively intercept sediment, leaves, fine particles, dissolved organic matter, heavy metal ions, and odorous substances, significantly improving water purification; the structural plate 5 provides stable installation for the second filter layer 6. When the second filter layer 6 drives the side connecting block 14 to be inserted into the side connecting groove 10 of the structural plate 5, the side insertion rod 11 descends along the structural plate 5 and is inserted into the corresponding side insertion hole 15, so that the second filter layer 6 and the structural plate... The structure plate 5 is connected to the cross plate 16, which can drive the side insert rod 11 to rotate on the structure plate 5. The side insert rod 11 is in close contact with the lower surface of the second filter layer 6. The reinforced concrete layer 7 can significantly improve the tensile strength, flexural strength and toughness of the pavement, and enhance the pavement's ability to resist cracking caused by heavy traffic and temperature changes. The base course 8 can not only bear the load of the upper pavement structure, but also serve as a temporary storage and further infiltration channel for rainwater, playing a buffer and transition role, and setting up transverse and longitudinal drainage channels. The subbase course 9 can improve the integrity and stability, and prevent damage due to uneven settlement. On the one hand, it not only ensures the connection stability between the structure plate 5 and the second filter layer 6, but also ensures the filtration effect. On the other hand, it facilitates the disassembly and assembly of the second filter layer 6 on the structure plate 5.

[0030] Please see Figure 4 The bottom end of the side insertion rod 11, the upper surface of the side connecting block 14, and the top end of the side insertion hole 15 are all designed with an inclination. This inclination design facilitates the assembly and disassembly of the side insertion rod 11, the side connecting block 14, and the side insertion hole 15.

[0031] Please see Figure 2 and Figure 6A set of guide plates 13, each with a triangular design, is uniformly installed on the upper surface of the reinforced concrete layer 7. The guide plates 13 direct the flow of rainwater passing through the second filter layer 6, preventing some rainwater from remaining on the upper surface of the reinforced concrete layer 7. Liquid guiding holes 17 are uniformly formed on the upper surface of the reinforced concrete layer 7, with adjacent sets of guide plates 13 located on either side of the top of the liquid guiding holes 17. The guide plates 13 guide the rainwater passing through the second filter layer 6 to the liquid guiding holes 17, allowing the rainwater to descend through the holes. Drainage pipes 18 are uniformly installed within the inner cavity of the reinforced concrete layer 7, and inlet holes 19 are uniformly formed on the upper surface of the drainage pipes 18, connecting to the liquid guiding holes 17. Rainwater enters the drainage pipes 18 along the liquid guiding holes 17 and the inlet holes 19. Drainage holes 20 are formed at both ends of the drainage pipes 18, extending to the outside of the reinforced concrete layer 7. Rainwater in the drainage pipe 18 can flow outward through the drainage hole 20, allowing it to flow into the drainage channel on the base layer 8, thus ensuring that the rainwater can infiltrate downward evenly and quickly.

[0032] This solution features: Functional surface layer 1 with anti-slip texture and hydrophobic coating. The anti-slip texture increases friction, improving the safety of pedestrians and vehicles; the hydrophobic coating reduces the adhesion of pollutants to the surface layer, facilitating rapid rainwater infiltration; Leveling layer 2's core function is leveling, providing a flat and solid base for the upper structure; Isolation layer 3 effectively prevents the interpenetration and mixing of materials between adjacent layers; First filter layer 4 and second filter layer 6 effectively intercept sediment, leaves, fine particles, dissolved organic matter, heavy metal ions, and odorous substances, significantly improving water purification; Structural plate 5 provides stable installation for second filter layer 6. When the second filter layer 6 drives the side connecting block 14 into the side connecting groove 10 of structural plate 5, the side insertion rod 11 descends along structural plate 5 and is inserted into the corresponding side insertion hole 15, connecting the second filter layer 6 to structural plate 5. The side insertion rod 11 can be rotated on structural plate 5 via cross plate 16. The side insert 11 is tightly attached to the lower surface of the second filter layer 6; the reinforced concrete layer 7 can significantly improve the tensile strength, flexural strength and toughness of the pavement, and enhance the pavement's ability to resist cracking caused by heavy traffic and temperature changes; the base course 8 can not only bear the load of the upper pavement structure, but also serve as a temporary storage and further infiltration channel for rainwater, playing a buffer and transition role, and setting up transverse and longitudinal drainage channels; the subbase course 9 can improve the integrity and stability, and prevent damage due to uneven settlement; the guide plate 13 guides the rainwater passing through the second filter layer 6 to the guide hole 17, and the rainwater enters the drainage pipe 18 along the guide hole 17 and the inlet hole 19. The rainwater in the drainage pipe 18 can flow outward through the drainage hole 20, so that the rainwater enters the drainage channel on the base course 8 for flow, thereby ensuring that the rainwater can infiltrate downward evenly and quickly.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A permeable pavement with double-layer filtration under sponge city construction, characterized in that, include: The functional surface layer (1) and the leveling layer (2) provided on the lower surface of the functional surface layer (1) have anti-slip texture and hydrophobic coating on the surface of the functional surface layer (1), and the lower surface of the leveling layer (2) is provided with an isolation layer (3), and a first filter layer (4) is connected to the lower surface of the isolation layer (3), and a structural plate (5) is uniformly provided on the lower surface of the first filter layer (4), and a second filter layer (6) is connected between adjacent structural plates (5), and a reinforced concrete layer (7) is provided on the lower surface of the structural plate (5), and a base layer (8) is connected to the lower surface of the reinforced concrete layer (7), and a subbase layer (9) is provided on the lower surface of the base layer (8). Side connecting block (14) is set on the left and right outer sides of the second filter layer (6), and side insertion holes (15) are evenly opened on the upper surface of the side connecting block (14), and a side connecting groove (10) is opened in the center of the inner wall of the structural plate (5), and the side connecting block (14) is inserted and connected to the side connecting groove (10). Side insert rod (11) is inserted into the upper surface of the structural plate (5), and the side insert rod (11) is connected to the side insert hole (15). Supporting side rods (12) are evenly installed on the lower part of the inner wall of the structural plate (5), and the supporting side rods (12) are tightly attached to the second filter layer (6). A cross plate (16) is installed at the top of the side insert rod (11). The upper surface of the reinforced concrete layer (7) is uniformly provided with a guide plate (13), the upper surface of the reinforced concrete layer (7) is uniformly provided with a liquid guiding hole (17), the inner cavity of the reinforced concrete layer (7) is uniformly provided with a drainage pipe (18), and both ends of the drainage pipe (18) are provided with a drainage hole (20).

2. The permeable pavement with double-layer filtration under sponge city construction according to claim 1, characterized in that: The bottom end of the side insertion rod (11), the upper surface of the side connecting block (14), and the top end of the side insertion hole (15) are all designed to be inclined.

3. The permeable pavement with double-layer filtration under sponge city construction according to claim 1, characterized in that: The guide vane (13) has a triangular design.

4. The permeable pavement with double-layer filtration under sponge city construction according to claim 3, characterized in that: The two adjacent sets of guide plates (13) are located on both sides of the top of the liquid guide hole (17).

5. A permeable pavement with double-layer filtration under sponge city construction according to claim 4, characterized in that: The upper surface of the drainage pipe (18) is uniformly provided with water inlet holes (19), and the water inlet holes (19) are connected to the liquid guiding holes (17).

6. A permeable pavement with double-layer filtration under sponge city construction according to claim 5, characterized in that: The drainage hole (20) extends to the outside of the reinforced concrete layer (7).

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