Shallow-layer regulation and storage permeable pavement structure and shallow-layer regulation and storage permeable road
By designing detachable storage space modules and drainage diversion components, combined with a locking structure and backwashing pipe, the problems of small storage space and poor stability in existing permeable pavement structures have been solved, realizing the modularity and maintainability of permeable pavement and improving rainwater storage and discharge capacity.
Patent Information
- Application Number
- CN202511917614.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-18
- Publication Date
- 2026-02-03
AI Technical Summary
Existing permeable pavement structures have limited storage space, poor structural stability, are difficult to construct and maintain, and have high maintenance costs. Traditional permeable pavement surfaces are integrally bonded to the base layer, and pore blockage requires destructive excavation for repair.
A shallow-layer water-regulating and permeable pavement structure is designed, including a permeable pavement surface layer, a detachable water-regulating space module, and drainage diversion components. These components are connected by a snap-fit structure. The modular design integrates water permeability, water regulation, and drainage functions. Backwashing pipes and pressure-resistant side plates are installed to ensure structural stability and convenient maintenance.
It improves rainwater storage capacity, reduces maintenance costs and time, realizes modularity and maintainability of permeable pavement structure, solves the problem of difficult maintenance of traditional permeable pavement, and achieves effective management and discharge of rainwater.
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Figure CN121451480A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of sponge city construction, in particular to a shallow regulation and storage permeable pavement structure and a shallow regulation and storage permeable road. BACKGROUND
[0002] With the advancement of sponge city construction, permeable pavement, as a source reduction facility, is widely used in municipal sidewalks, squares, parks and other places.
[0003] In the prior art, permeable pavement is usually constructed by paving permeable bricks or pouring permeable concrete on site to form a surface layer, and a graded gravel cushion layer or other permeable base layer is arranged below to form a downward permeation path. In order to improve the regulation and storage capacity of permeable pavement, the underground water storage space is often increased by increasing the thickness of the gravel cushion layer.
[0004] However, in the above-mentioned traditional permeable pavement method, the regulation and storage space depends on the loose voids of the gravel, the structural stability is poor, and the regulation and storage space is easily compressed under load, resulting in a decrease in the regulation and storage space and ground subsidence. Permeable pavement is constructed in layers on site, and the permeable surface layer and the lower base layer are integrated. Once the pores of the surface layer are blocked, destructive excavation is required for maintenance, which is extremely high in maintenance cost and long in maintenance period. SUMMARY
[0005] Therefore, it is necessary to provide a shallow regulation and storage permeable pavement structure and a shallow regulation and storage permeable road to solve the problems of small regulation and storage space, poor structural stability, and high construction and maintenance difficulty of the existing permeable pavement structure.
[0006] A shallow regulation and storage permeable pavement structure comprises:
[0007] a permeable pavement surface layer;
[0008] a regulation and storage space module arranged below the permeable pavement surface layer and detachably connected to the permeable pavement surface layer;
[0009] a support module arranged in the regulation and storage space module, and a regulation and storage cavity formed between the support modules;
[0010] a drainage and flow guide component arranged on one side of the regulation and storage space module and in communication with the regulation and storage cavity.
[0011] In one embodiment, the regulation and storage space module is connected to the permeable pavement surface layer by a lock structure, and the lock structure comprises a lock head arranged on the top of the support module and a lock groove arranged on the lower part of the permeable pavement surface layer and engaged with the lock head.
[0012] In one embodiment, the support module comprises a bottom plate and a plurality of support columns fixed to the bottom plate, and a first regulation and storage cavity is formed between the support columns.
[0013] In one of the embodiments, the inside of the support column is provided with a second regulating and storing cavity extending from top to bottom.
[0014] In one of the embodiments, the lower part of the sidewall of the support column is provided with a first water passing hole for connecting the first regulating and storing cavity and the second regulating and storing cavity.
[0015] In one of the embodiments, the top end of the support column is provided with a plurality of gas permeable holes penetrating through; the plurality of gas permeable holes are arranged at intervals along the circumference of the top end of the support column.
[0016] In one of the embodiments, the regulating and storing space is provided with a backwashing flushing pipe, and the spray opening of the backwashing flushing pipe faces the lower surface of the water permeable pavement surface layer.
[0017] In one of the embodiments, the circumferential side of the regulating and storing space module is provided with a buckle structure.
[0018] Further comprising a compression-resistant side plate connected to the circumferential side of the regulating and storing space module through the buckle structure.
[0019] The backwashing flushing pipe is arranged in the compression-resistant side plate and communicates with the regulating and storing cavity.
[0020] The above shallow regulating and storing water permeable pavement structure realizes the integration of water permeability, regulation and storage, and drainage functions by detachably arranging the regulating and storing space module under the water permeable pavement surface layer, forming a regulating and storing cavity in the regulating and storing space module, and connecting the regulating and storing cavity with the drainage and flow guide component, improves the rainwater regulating and storing capacity, timely drains the accumulated water, and improves the reliability; meanwhile, the detachable structure facilitates the later maintenance.
[0021] According to another purpose of the present application, a shallow regulating and storing water permeable road is also provided, comprising, from bottom to top, a foundation, a composite geomembrane, a graded broken stone cushion layer, a water permeable concrete layer, a leveling layer, and the above shallow regulating and storing water permeable pavement structure.
[0022] In one of the embodiments, the drainage and flow guide component comprises a perforated blind water collecting pipe, an overflow pipe, and a connecting pipe; the perforated blind water collecting pipe is arranged in the graded broken stone cushion layer or the foundation; the overflow pipe is arranged in the regulating and storing space module, one end of the overflow pipe is connected with the perforated blind water collecting pipe, and the other end of the overflow pipe is arranged at the upper part of the regulating and storing cavity; one end of the connecting pipe is connected with a plurality of perforated blind water collecting pipes respectively, and the other end of the connecting pipe is connected with a rainwater well or a rainwater reuse device.
[0023] The above shallow regulating and storing water permeable road realizes the recycling and management of rainwater on the basis of guaranteeing the road bearing strength by arranging the shallow regulating and storing water permeable pavement structure on the leveling layer of the road structure, and solves the problems of water permeability, regulation and storage, and drainage of the road. Attached Figure Description
[0024] Figure 1 A schematic diagram of the structure of a shallow-layer permeable pavement road.
[0025] Figure 2 This is a schematic diagram of a shallow water-retaining permeable pavement structure.
[0026] Figure 3 This is a schematic diagram of the structure of the compression-resistant side plate.
[0027] Figure 4 This is a top view of the compression-resistant side plate.
[0028] Figure 5 This is a structural diagram of the support module.
[0029] Figure 6 This is a top view of the support module.
[0030] Figure 7 This is a structural diagram of a permeable pavement surface layer.
[0031] Figure 8 This is a top view of the permeable pavement surface.
[0032] In the diagram: 100, permeable pavement surface layer; 110, surface layer main body; 120, grid reinforcement rib; 130, locking groove; 200, water storage space module; 201, first water storage cavity; 210, support column; 211, locking head; 212, second water storage cavity; 215, vent hole; 220, base plate; 300, drainage guide component; 310, connecting pipe; 320, perforated water collection blind pipe; 330, rainwater well; 340, rainwater reuse device; 350, overflow pipe; 400, backwash flushing pipe; 500, pressure-resistant side plate; 510, side plate body; 520, support component; 530, through hole; 540, fastener;
[0033] 10. Foundation; 20. Composite geomembrane; 30. Graded crushed stone cushion layer; 40. Permeable concrete layer; 50. Leveling layer. Detailed Implementation
[0034] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.
[0035] In the description of this application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application.
[0036] Furthermore, where the terms "first" and "second" appear, these terms are 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 with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0037] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0038] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0039] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "of," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not indicate the only possible implementation.
[0040] See Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the structure of a shallow water-retaining permeable pavement road in one embodiment of this application. Figure 2 This is a schematic diagram of a shallow water-regulating permeable pavement structure in one embodiment of this application. Figure 5 This is a schematic diagram of the support module in one embodiment of this application.
[0041] An embodiment of this application provides a shallow water-storage permeable pavement structure, comprising: a permeable pavement surface layer 100, a water-storage space module 200, and a drainage diversion component 300.
[0042] In this embodiment, the water storage space module 200 is disposed below the permeable pavement surface layer 100 and is detachably connected to the permeable pavement surface layer 100. The water storage space module 200 includes support modules, and water storage cavities are formed between or within the support modules. The drainage guiding component 300 is disposed on one side of the water storage space module 200 and communicates with the water storage cavity.
[0043] The water storage module 200 is detachably installed beneath the permeable pavement layer 100. Detachable connection can be achieved in various ways, including but not limited to snap-fit connections and plug-in connections, allowing for quick assembly and disassembly.
[0044] When the pores of the permeable pavement 100 become clogged due to long-term use, or when the internal structure of the storage space module 200 needs cleaning and maintenance, maintenance personnel can easily separate the two for maintenance or replacement, thereby reducing maintenance costs and operation time and increasing the service life of the permeable pavement structure.
[0045] The rainwater storage module 200 contains multiple support modules, forming rainwater storage cavities between or within these modules. These cavities effectively store a certain amount of rainwater. The drainage guide component 300 communicates with these storage cavities to drain the accumulated rainwater. By incorporating these storage cavities, the permeable pavement structure possesses both infiltration and rainwater storage capabilities. It can temporarily store some rainwater during peak rainfall periods and slowly release it after the rainfall subsides, effectively reducing the pressure on the municipal drainage network.
[0046] By setting up a permeable pavement surface layer 100, a detachable storage space module 200, and a drainage diversion component 300, a permeable pavement system with permeability, storage, and diversion functions is constructed, realizing the modularity and maintainability of the permeable pavement structure, solving the problem of difficult maintenance of traditional permeable pavement, and realizing rainwater management through the storage function.
[0047] Combination Figure 5 As shown, Figure 5 This is a schematic diagram of the structure of a support module provided in one embodiment of this application.
[0048] In some embodiments, the permeable pavement surface layer 100 and the water storage space module 200 are connected by a locking structure; the locking structure includes a locking head 211 disposed on the top of the support column 210 of the water storage space module 200, and a locking groove 130 disposed on the lower part of the permeable pavement surface layer 100 and engaged with the locking head 211; the locking head 211 is T-shaped or mushroom-shaped.
[0049] In this embodiment, the permeable pavement layer 100 and the water storage space module 200 are connected by a locking structure.
[0050] The locking structure includes a locking head 211 disposed on the top of the support module of the storage space module 200. The support module includes a support column 210, that is, the locking head 211 is disposed on the top of the support column 210.
[0051] The locking structure also includes locking grooves 130 on the grid reinforcing ribs 120 located under the permeable pavement surface layer 100.
[0052] In practice, simply align the locking head 211 with the locking groove 130 and apply downward pressure to secure the two together. This connection method is simple to operate, requires no tools, significantly improves construction efficiency, and reduces labor costs.
[0053] Furthermore, the locking head 211 is a T-shaped head. When the locking head 211 is subjected to an upward pulling force, the enlarged head of the locking head 211 will form mechanical interference with the inner edge of the locking groove 130, generating sufficient friction to prevent the two from separating. When maintenance disassembly is required, only sufficient vertical upward force needs to be applied to overcome the mechanical interference, achieving quick and non-destructive disassembly.
[0054] Furthermore, the locking head 211 is made of composite polypropylene material to ensure that it will not fail due to aging or fatigue during long-term use, thereby further improving the reliability of the connection.
[0055] By setting a locking structure in which the locking head 211 and the locking groove 130 cooperate, quick assembly and non-destructive disassembly can be achieved while ensuring connection reliability and load-bearing stability, which helps to improve construction efficiency and reduce maintenance costs.
[0056] Combination Figure 6 As shown, Figure 6 This is a top view of a support module provided in one embodiment of this application.
[0057] In some embodiments, the storage space module 200 includes a base plate 220 and a plurality of support columns 210 fixed on the base plate 220; a first storage cavity 201 is formed between the support columns 210; and a second storage cavity 212 extending from top to bottom is provided inside the support columns 210.
[0058] The water storage module 200 includes a base plate 220 and multiple support columns 210. A first water storage cavity 201 is formed between the support columns 210, serving as a rapid water storage area. A second water storage cavity 212 is provided inside the support columns 210, serving as an auxiliary slow water storage area.
[0059] Furthermore, a first water passage hole is provided on the lower part of the side wall of the support column 210, and the first water passage hole connects the first storage cavity 201 and the second storage cavity 212; a second water passage hole is provided on the bottom plate 220, and the second water passage hole connects to the first storage cavity 201; a third water passage hole is also provided on the upper part of the side wall of the support column 210, and the third water passage hole connects to the second storage cavity 212.
[0060] A first water passage hole is provided on the lower part of the side wall of the support column 210 to connect the first storage cavity 201 and the second storage cavity 212. A second water passage hole is provided on the bottom plate 220 to connect with the first storage cavity 201. A third water passage hole is also provided on the upper part of the side wall of the support column 210 to connect with the second storage cavity 212. Water flow control is achieved through the cooperation of the three water passage holes.
[0061] In practical applications, rainwater quickly fills the first regulating cavity 201 after passing through the permeable pavement. When the water level exceeds the predetermined height of the first water passage, it begins to slowly flow into the second regulating cavity 212 through the first water passage. During drainage, water in the first regulating cavity 201 is quickly discharged through the second water passage, while water in the second regulating cavity 212 is slowly released through the first water passage. The third water passage simultaneously balances air pressure and assists in drainage, effectively achieving staggered discharge.
[0062] Furthermore, the top end of the support column 210 is provided with a plurality of through vent holes 215; the plurality of vent holes 215 are arranged at intervals along the circumference of the top end of the support column 210; there is a gap between the vent holes 215 at the top end of the support column 210 and the lower surface of the permeable pavement 100, and the vent holes 215 are opposite to the permeable pores of the permeable pavement 100.
[0063] Multiple through-holes 215 are opened at the top of the support column 210. The air holes 215 are evenly spaced along the circumference of the top of the support column to form an air circulation channel.
[0064] After the permeable pavement surface layer 100 is installed, the air vents 215 maintain a gap with the lower surface of the permeable pavement surface layer 100, forming an effective air gap. By creating a gap between the air vents 215 and the permeable pavement surface layer 100, air circulation is promoted.
[0065] Furthermore, there are eight support columns 210 arranged in a rectangular array on the base plate 220; the base plate 220, the support columns 210, and the second regulating cavity 212 inside the support columns 210 are integrally injection molded plastic parts.
[0066] There are eight support columns 210, arranged in a rectangular array on the base plate 220 to form modular units. By setting the rectangular array arrangement, both the uniform distribution of load and the ease of splicing between modules are ensured.
[0067] The storage space module 200 is made of composite polypropylene material to ensure structural airtightness and avoid water leakage problems that may occur with traditional splicing methods.
[0068] In summary, by setting up the first storage cavity 201, the second storage cavity 212, and three water passage holes, in conjunction with the vent hole 215 at the top, rainwater can be stored and discharged in stages, thereby improving storage capacity and achieving staggered discharge.
[0069] Combination Figure 1 As shown, Figure 1 This is a schematic diagram of the structure of a shallow water-retaining permeable pavement road provided in one embodiment of this application.
[0070] In some embodiments, a backwashing pipe 400 is provided inside the storage cavity, and the spray nozzle of the backwashing pipe 400 faces the lower surface of the permeable pavement 100.
[0071] A backwashing pipe 400 is installed inside the storage cavity of the storage space module 200. The backwashing pipe 400 is made of materials such as UPVC, PPR or PE. The water flow from the spray nozzles of the backwashing pipe 400 can evenly cover the lower surface of the permeable pavement layer 100.
[0072] When maintenance is required, high-pressure water jets are sprayed upwards from the spray nozzles, impacting the bottom of the permeable pavement surface layer 100 and flushing out particles such as mud, sand, and organic matter that are clogging the pores. The entire flushing process does not require damage to the surface layer, achieving environmentally friendly maintenance.
[0073] By integrating the backwashing pipe 400, the permeable pavement system achieves self-cleaning, solving the problem of easy clogging of permeable pores.
[0074] Furthermore, the storage space module 200 is provided with a snap-fit structure on its periphery.
[0075] The storage space module 200 is equipped with a mortise and tenon type snap-fit structure on its periphery, consisting of two parts: a protruding tenon and a recessed tenon. The head of the protruding tenon has a guide bevel, and the interior of the recessed tenon has an elastic locking device. By aligning a protruding tenon with the recessed tenon and applying a light pressure, a locking mechanism can be achieved. This connection method not only ensures a tight connection and prevents loosening during use, but also ensures flatness.
[0076] Combination Figure 3 , Figure 4 As shown, Figure 3 This is a structural schematic diagram of the compression-resistant side plate 500 provided in one embodiment of this application. Figure 4 This is a top view of the compression-resistant side plate 500 provided in one embodiment of this application.
[0077] In some embodiments, a pressure-resistant side plate 500 is further included, the pressure-resistant side plate 500 including a side plate body 510, two support members 520 disposed inside the side plate body 510 and protruding inward, and a through hole 530 penetrating the side plate body 510; the center of the through hole 530 and the center point of the two support members 520 are triangularly distributed on the plane of the side plate body 510; the two support members 520 are symmetrically arranged with respect to the vertical center line of the through hole 530.
[0078] The compression-resistant side plate 500 includes a side plate body 510, two support members 520, and a through hole 530. The center of the through hole 530 and the center point of the two support members 520 form a triangular distribution.
[0079] Furthermore, the support member 520 is a block-shaped protrusion; the support member 520 has a support surface that matches the curvature of the side wall of the support column 210 of the storage space module 200, and abuts against the side wall of the support column 210.
[0080] The support component 520 is a block-shaped protrusion, and it is integrally injection molded with the side plate body. The support surface of the support component 520 has an arc that matches the side wall of the support column 210, ensuring maximum surface contact area and effectively distributing load pressure.
[0081] Furthermore, the backwash flushing pipe 400 passes through the through hole 530 of the pressure-resistant side plate 500; the backwash flushing pipe 400, the through hole 530, and the two support members 520 together form a support structure.
[0082] The backwash flushing pipe 400 passes through the through hole 530, forming a triangular support structure together with the two support members 520. When subjected to lateral loads, the force is effectively transferred to the backwash flushing pipe 400 through the support members 520, and then dispersed and offset by the triangular support structure, enabling the pressure-resistant side plate 500 to withstand greater lateral pressure.
[0083] Furthermore, the through hole 530 can also be used to thread cables and other components, achieving a compact layout and optimizing the spatial structure.
[0084] Furthermore, the pressure-resistant side plate 500 is connected to the periphery of the storage space module 200 via a snap-fit structure; the bottom edge of the pressure-resistant side plate 500 is provided with a snap-fit member 540 for connecting with the slot on the side of the storage space module 200.
[0085] The buckle 540 at the bottom of the pressure-resistant side plate 500 adopts an elastic locking design, which forms an interference fit with the slot on the side of the storage space module 200, so as to achieve quick and accurate positioning and installation while ensuring connection reliability.
[0086] During actual installation, the buckle 540 at the bottom of the pressure-resistant side plate 500 is aligned with the slot on the side of the storage space module 200, and pressed down until it is locked, so that the supporting surface of the support member 520 is in contact with the side wall of the support column 210, thereby forming a support structure.
[0087] By combining the compression-resistant side plate 500 and the support column 210 to form a triangular load-bearing system, the lateral pressure resistance is improved, and the stability and reliability are enhanced.
[0088] Combination Figure 7 , Figure 8 As shown, Figure 7 This is a structural schematic diagram of the permeable pavement surface layer 100 provided in one embodiment of this application. Figure 8This is a top view of a permeable pavement surface layer 100 provided in one embodiment of this application.
[0089] In some embodiments, the permeable pavement surface layer 100 includes a surface layer body 110, a grid reinforcing rib 120 completely embedded and buried inside the surface layer body 110, and a plurality of locking grooves 130 disposed on the lower surface of the grid reinforcing rib 120 and opening downward; the grid reinforcing rib 120 is located in the lower half of the thickness of the surface layer body 110; the surface layer body 110 is integrally formed by vibration and compression molding of permeable concrete and the grid reinforcing rib 120.
[0090] The permeable pavement surface layer 100 is made using an integrated vibration compression molding process. The surface layer body 110 is formed by vibration compression of permeable concrete and grid reinforcing ribs 120. The grid reinforcing ribs 120 are embedded inside the surface layer body 110 and located in the lower half of its thickness.
[0091] Furthermore, the surface of the reinforcing ribs 120 of the grid is provided with multiple nail points or protrusions; the grid height of the reinforcing ribs 120 is 10mm to 20mm.
[0092] The reinforcing grating 120 has evenly distributed nail points on its surface, with a nail point height of 10mm-20mm. Raised points, 1mm-2mm high, are evenly distributed on these nail points to enhance the bond with the concrete. The mesh height of the reinforcing grating 120 is within the range of 10-20mm, ensuring both reinforcement and permeability.
[0093] Furthermore, the number of the locking grooves 130 is eight, and they are distributed in a rectangular array; the permeable concrete includes coarse aggregate, fine aggregate and cement binder; the grid reinforcing ribs 120 are grids or welded metal mesh.
[0094] Multiple locking grooves 130 are provided on the lower surface of the grid reinforcing ribs 120 in a rectangular array, corresponding one-to-one with the locking heads 211 on the top of the eight support columns 210 at the bottom, to ensure uniform load transfer and avoid stress concentration.
[0095] The coarse aggregate of permeable concrete is single-size crushed stone, the fine aggregate is medium-coarse sand, and the cement is silicate cement.
[0096] By embedding the integrated reinforcing grating 120 into the permeable pavement surface layer 100, the strength and durability of the permeable pavement surface layer 100 are improved, thereby solving the problems of difficult quality control during on-site pouring and easy damage to traditional permeable pavement.
[0097] Combination Figure 1 As shown, Figure 1 This is a schematic diagram of the structure of a shallow water-retaining permeable pavement road provided in one embodiment of this application.
[0098] In some embodiments, a shallow water-regulating and permeable road system includes, from bottom to top, a foundation 10, a composite geomembrane 20, a graded crushed stone cushion layer 30, a permeable concrete layer 40, a leveling layer 50, and the shallow water-regulating and permeable pavement structure as described above.
[0099] The leveling layer 50 is a dry-hardened mortar leveling layer with a thickness of 30mm-50mm. The permeable concrete layer 40 is C20 permeable concrete.
[0100] The drainage guiding component includes an open-hole water collection blind pipe 320, an overflow pipe 350, and a connecting pipe 310. The open-hole water collection blind pipe 320 is laid in the graded crushed stone cushion layer 30 or the foundation 10; the overflow pipe 350 is set in the storage space module 200, with one end connected to the open-hole water collection blind pipe 320 and the other end located in the upper part of the storage cavity; one end of the connecting pipe 310 is connected to multiple open-hole water collection blind pipes 320 respectively, and the other end is connected to the rainwater well 330 or the rainwater reuse device 340.
[0101] Furthermore, a tee fitting is connected in series on the perforated water collection blind pipe 320, and the branch outlet of the tee fitting is connected to the rainwater reuse device 340. The rainwater reuse device 340 includes a lifting unit and a treatment unit; the branch outlet of the tee fitting is connected to the inlet of the lifting unit through a water supply pipe, and the outlet of the lifting unit is connected to the treatment unit.
[0102] The system has two working modes: penetration and reuse.
[0103] In infiltration mode, rainwater enters the storage space, slowly infiltrates through openings in the bottom slab 220, and is collected and aggregated by the perforated collection pipe 320 to the connecting pipe 310, finally being discharged into the rainwater well 330 and entering the municipal pipe network. When the storage space is full, if rainfall continues, excess rainwater is discharged directly into the connecting pipe 310 through the overflow outlet, then into the rainwater well 330, and finally discharged into the municipal pipe network. The rainwater stored in the storage space continuously and slowly infiltrates and discharges through the openings in the bottom slab, thus achieving the functions of storage and peak-shaving delayed drainage.
[0104] In reuse mode, the stored rainwater flows through the perforated blind collection pipe 320 and is then diverted via a tee fitting. The tee fitting is installed in the perforated blind collection pipe 320, and its branch outlet is connected to the rainwater reuse device 340 via a water supply pipe.
[0105] The rainwater reuse device 340 includes a lifting unit and a treatment unit. The lifting unit is a self-priming lifting pump used to draw rainwater stored in the storage space through the water distribution port of a three-way fitting and transport it to the treatment unit. The treatment unit includes a filtration unit and a disinfection unit: the filtration unit is equipped with at least a sand filter layer, an activated carbon filter layer, and a filter screen, which can effectively remove suspended solids, organic matter, and other impurities from the rainwater; the disinfection unit uses a flow-through ultraviolet sterilizer. The water distribution port of the three-way fitting is connected to the inlet of the lifting unit through a water supply pipe, and the outlet of the treatment unit can be connected to water-using equipment such as sprinkler systems and flushing systems to realize the utilization of rainwater resources.
[0106] During rainfall, rainwater first infiltrates through the permeable pavement layer 100 and enters the storage cavity of the storage space module 200 for storage. Simultaneously, some rainwater slowly infiltrates through openings in the base plate 220, is collected by the perforated blind collection pipe 320, and then converges into the connecting pipe 310, ultimately being discharged into the rainwater well 330. When the storage capacity reaches saturation, excess rainwater is discharged through the overflow outlet into the connecting pipe 310 and directly into the rainwater well 330, thus ensuring system safety.
[0107] By setting up a multi-layered road structure and incorporating permeable pavement within the road structure, rainwater infiltration, storage, and reuse can be achieved, ensuring the road's load-bearing capacity while also enabling rainwater recycling and reducing the pressure on municipal drainage.
[0108] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0109] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.
Claims
1. A shallow-layer water-regulating permeable pavement structure, characterized in that, include: Permeable pavement surface layer; A water storage space module is located below the permeable pavement surface layer and is detachably connected to the permeable pavement surface layer; The storage space module is equipped with a support module, and a storage cavity is formed between the support modules. A drainage guide component is disposed on one side of the storage space module and communicates with the storage cavity.
2. The shallow water-regulating permeable pavement structure according to claim 1, characterized in that, The storage space module is connected to the permeable pavement surface layer through a locking structure; the locking structure includes a locking head disposed on the top of the support module, and a locking groove disposed on the lower part of the permeable pavement surface layer and engaging with the locking head.
3. The shallow water-regulating permeable pavement structure according to claim 2, characterized in that, The support module includes a base plate and multiple support columns fixed to the base plate; a first regulating cavity is formed between the support columns.
4. The shallow water-regulating permeable pavement structure according to claim 3, characterized in that, The support column has a second regulating cavity extending from top to bottom inside.
5. The shallow water-regulating permeable pavement structure according to claim 4, characterized in that, The lower part of the side wall of the support column is provided with a first water passage hole, which is used to connect the first storage cavity and the second storage cavity.
6. The shallow water-regulating permeable pavement structure according to claim 4, characterized in that, The top of the support column has multiple through-holes; the multiple vents are spaced apart circumferentially along the top of the support column.
7. The shallow water-regulating permeable pavement structure according to claim 1, characterized in that, The storage space is equipped with a backwashing pipe, and the spray nozzle of the backwashing pipe faces the lower surface of the permeable pavement.
8. The shallow water-regulating permeable pavement structure according to claim 7, characterized in that, The storage space module is provided with a snap-fit structure on its periphery; It also includes a pressure-resistant side plate, which is connected to the periphery of the storage space module via the snap-fit structure; The backwash flushing pipe is located on the pressure-resistant side plate and is connected to the storage cavity.
9. A shallow, permeable pavement for water storage and regulation, characterized in that, It includes, from bottom to top, a foundation, a composite geomembrane, a graded crushed stone cushion layer, a permeable concrete layer, a leveling layer, and a shallow water-regulating permeable pavement structure as described in any one of claims 1-8.
10. The shallow water-regulating and permeable road according to claim 9, characterized in that, The drainage diversion component includes an open-hole water collection blind pipe, an overflow pipe, and a connecting pipe. The open-hole water collection blind pipe is laid in the graded crushed stone cushion layer or foundation. The overflow pipe is set in the storage space module, with one end connected to the open-hole water collection blind pipe and the other end located in the upper part of the storage cavity. One end of the connecting pipe is connected to multiple open-hole water collection blind pipes, and the other end is connected to a rainwater well or rainwater reuse device.