A permeable sidewalk structure
By using a multi-layered permeable structure design and drainage components, the problems of gap clogging and insufficient base strength in permeable pavement structures during long-term use have been solved, enabling rapid rainwater infiltration and penetration, and improving the drainage efficiency and structural stability of the pavement.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WEIFANG MUNICIPAL ENG DESIGN & RES INST CO LTD
- Filing Date
- 2025-09-24
- Publication Date
- 2026-07-28
AI Technical Summary
After long-term use, the gaps between the bricks in existing permeable sidewalk structures are easily blocked, resulting in decreased permeability and insufficient strength of the base structure. This can easily lead to settlement and cracking, affecting urban drainage and structural stability.
The system adopts a multi-layer permeable structure design, including an impermeable layer, a permeable cushion layer, a permeable base layer, a leveling layer, and a permeable paving layer. Combined with drainage components, it utilizes materials such as impermeable membranes, expanded clay, graded crushed stone, permeable concrete, and permeable bricks to enhance permeability and structural support. Water collection pipes and infiltration holes are installed to enable rapid infiltration and diversion of rainwater.
It enables rapid infiltration and penetration of rainwater, reduces surface runoff, improves the load-bearing capacity and stability of sidewalks, reduces settlement and cracking, and ensures the structural condition and functional performance during long-term use.
Smart Images

Figure CN224564996U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of municipal sidewalk technology, and more specifically, it relates to a permeable sidewalk structure. Background Technology
[0002] With the accelerating pace of urbanization and the increasing coverage of urban infrastructure, traditional impermeable pavements prevent rainwater from infiltrating in a timely manner, easily leading to urban flooding and other problems. As an important component of urban roads, the permeability of sidewalks directly impacts the urban ecological environment.
[0003] Based on the above, the existing permeable sidewalk structures currently only use permeable bricks for paving. After long-term use, the gaps between the bricks are easily blocked, resulting in a decrease in permeability. Moreover, the base structure is not strong enough, and it is prone to settlement, cracking and other phenomena. Utility Model Content
[0004] To address the aforementioned technical problems, this utility model relates to a permeable pedestrian walkway structure. This structure solves the issues of easily clogged gaps between existing permeable pedestrian walkway bricks and insufficient strength of the base structure. Through a multi-layered permeable structure design, rainwater can rapidly infiltrate and penetrate, effectively reducing surface runoff and alleviating urban flooding. The permeable base layer and leveling layer provide solid support for the upper structure, improving the overall load-bearing capacity and stability, reducing settlement and cracking, and ensuring the pedestrian walkway maintains good structural condition and functional performance over long-term use.
[0005] This utility model discloses a permeable pedestrian walkway structure, achieved through the following specific technical means:
[0006] A permeable sidewalk structure, specifically comprising: a foundation soil layer and a permeable road structure;
[0007] A permeable road structure is laid on top of the foundation soil layer, and the permeable road structure includes the following components:
[0008] Impermeable layer: Located at the top of the foundation soil layer, the impermeable layer is composed of an impermeable membrane;
[0009] Permeable cushion layer: laid on top of the impermeable layer, the permeable cushion layer is made of ceramsite;
[0010] Permeable base course: Lay on top of the permeable subbase, the permeable base course is composed of graded crushed stone;
[0011] Leveling layer: laid on top of the permeable base layer, the leveling layer is made of permeable concrete;
[0012] Permeable pavement layer: laid on top of the leveling layer, the permeable pavement layer is made of permeable bricks, and the gaps in the permeable pavement layer are filled with permeable mortar.
[0013] Furthermore, the permeable base layer is provided with a drainage component inside, which includes an installation groove, a water collection pipe and a permeation hole. The permeable base layer is provided with an installation groove inside, and a water collection pipe is provided inside the installation groove. A permeation hole is opened at the top of the water collection pipe.
[0014] Furthermore, the water collection pipe is provided with 10 pipes, and each water collection pipe is spaced 2 meters apart.
[0015] Furthermore, one end of the water collection pipe is fixedly connected to a central pipe, and the top of the central pipe is provided with a curbstone, the interior of which is provided with a protective groove.
[0016] Furthermore, a drainage bend is fixedly connected to the middle of the central pipe.
[0017] Furthermore, the impermeable layer is provided with water-permeable holes, and the spacing between the water-permeable holes is 15 centimeters.
[0018] This utility model provides a permeable pedestrian walkway structure, the beneficial effects of which are:
[0019] 1. Through the multi-layer permeable structure design of the permeable road structure, rainwater can be rapidly infiltrated and penetrated, effectively reducing surface runoff and alleviating urban flooding problems.
[0020] 2. The permeable base layer and leveling layer provide solid support for the superstructure, improve the overall load-bearing capacity and stability of the structure, reduce settlement and cracking, and ensure that the sidewalk maintains good structural condition and functional performance during long-term use.
[0021] 3. By installing drainage components, rainwater not only infiltrates quickly and is efficiently drained, but it can also be rapidly guided to roadside sewers, significantly reducing surface runoff and effectively alleviating urban flooding problems. Simultaneously, these components effectively prevent groundwater backflow, avoiding damage to the road structure due to backflow and ensuring the long-term stable operation of sidewalks, thus improving drainage efficiency while also ensuring structural safety. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the structure of this utility model.
[0023] Figure 2 This is a schematic diagram of the disassembled structure of the permeable road structure of this utility model.
[0024] Figure 3 This is a cross-sectional schematic diagram of the permeable road structure of this utility model.
[0025] Figure 4This is a cross-sectional structural diagram of the drainage component of this utility model.
[0026] Figure 5 This is a schematic diagram of the drainage component structure of this utility model.
[0027] In the diagram, the correspondence between component names and drawing numbers is as follows:
[0028] 1. Foundation soil layer;
[0029] 2. Permeable road structure;
[0030] 201. Impermeable layer;
[0031] 202. Permeable subbase;
[0032] 203. Permeable base course;
[0033] 204. Leveling layer;
[0034] 205. Permeable pavement layer;
[0035] 3. Drainage components;
[0036] 301. Mounting groove; 3011. Water collection pipe; 3012. Permeation hole;
[0037] 302. Centralized pipe; 3021. Curbstone; 3022. Protective trench;
[0038] 303. Drainage bend. Detailed Implementation
[0039] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.
[0040] Example 1: As shown in the attached document Figure 1 To be continued Figure 5 As shown:
[0041] This utility model provides a permeable sidewalk structure, including: a foundation soil layer 1 and a permeable road structure 2;
[0042] A permeable road structure 2 is laid on top of the foundation soil layer 1. The permeable road structure 2 includes the following components:
[0043] Impermeable layer 201: Located on top of foundation soil layer 1, impermeable layer 201 is composed of an impermeable membrane;
[0044] Permeable cushion layer 202: laid on top of the impermeable layer 201, the permeable cushion layer 202 is made of ceramsite;
[0045] Permeable base course 203: Lay on top of permeable subbase 202, permeable base course 203 is composed of graded crushed stone;
[0046] Leveling layer 204: laid on top of permeable base layer 203, leveling layer 204 is made of permeable concrete.
[0047] Permeable pavement layer 205: laid on top of leveling layer 204. Permeable pavement layer 205 is made of permeable bricks, and the gaps in permeable pavement layer 205 are filled with permeable mortar.
[0048] The geomembrane prevents excessive rainwater infiltration and groundwater pollution, while the permeable pores control the rate and amount of rainwater infiltration, allowing rainwater to fully infiltrate and purify within the structural layer. Lightweight and porous, expanded clay aggregates possess excellent water absorption and permeability, serving to store and infiltrate rainwater while reducing the structure's weight. Graded crushed stone exhibits good permeability and load-bearing capacity, enabling rapid rainwater infiltration into the permeable subbase 202 and providing stable support for the superstructure. The leveling layer 204, constructed from permeable concrete, adjusts the flatness of the permeable pavement layer 205, further enhancing the structure's permeability and load-bearing capacity. Permeable bricks offer excellent permeability, allowing rainwater to infiltrate quickly. Permeable mortar ensures the bonding strength between bricks while also possessing a certain degree of permeability, preventing gap blockage and ensuring overall permeability.
[0049] Example 2: Based on Example 1, wherein, as Figure 4 and Figure 5 As shown, the permeable base layer 203 is provided with a drainage component 3 inside. The drainage component 3 includes an installation groove 301, a water collection pipe 3011 and a permeation hole 3012. The permeable base layer 203 is provided with an installation groove 301 inside. The installation groove 301 is provided with a water collection pipe 3011 inside. The top of the water collection pipe 3011 is provided with a permeation hole 3012.
[0050] There are 10 water collection pipes 3011, and each water collection pipe 3011 is spaced 2 meters apart.
[0051] One end of the water collection pipe 3011 is fixedly connected to a central pipe 302. The top of the central pipe 302 is provided with a curb stone 3021, and a protective groove 3022 is opened inside the curb stone 3021.
[0052] A drain bend 303 is fixedly connected at the middle of the central pipe 302.
[0053] The impermeable layer 201 has permeable holes with a spacing of 15 cm.
[0054] The infiltrated rainwater can also enter the water collection pipe 3011 through the infiltration hole 3012; with the water collection pipe 3011 set at an inclination, the rainwater can be concentrated into the central pipe 302 by gravity, and then quickly guided into the road sewer through the drainage bend 303.
[0055] The specific usage and function of this embodiment are as follows:
[0056] In this invention, the foundation soil layer 1 is first leveled and compacted. Then, an impermeable layer is laid on top of the foundation soil layer 1, with several permeable holes 201 opened on the impermeable membrane to prevent excessive rainwater infiltration and groundwater pollution. The permeable holes control the rate and amount of rainwater infiltration, allowing rainwater to fully infiltrate and purify within the structural layer. Next, a permeable cushion layer 202 is laid on top of the impermeable layer 201, leveled and compacted. Then, a permeable base layer 203 is laid on top of the permeable cushion layer 202, which also needs to be leveled and compacted to ensure sufficient load-bearing capacity and permeability. Finally, a leveling layer 204 is poured on top of the permeable base layer 203 and vibrated. The surface is compacted to ensure a smooth surface. Finally, a permeable pavement layer 205 is laid on top of the leveling layer 204. The gaps between the permeable bricks are then filled with permeable mortar to complete the paving of the sidewalk. Through the multi-layer permeable structure design of the permeable pavement layer 205, leveling layer 204, permeable base layer 203, and permeable underlayment 202, rainwater can be rapidly infiltrated and penetrated, effectively reducing surface runoff and alleviating urban flooding problems. Furthermore, the permeable base layer and leveling layer provide solid support for the upper structure, improving the overall load-bearing capacity and stability of the structure, reducing settlement, cracking, and other phenomena, and ensuring that the sidewalk maintains a good structural condition and functional performance during long-term use.
Claims
1. A permeable pedestrian walkway structure, comprising: Foundation soil layer (1) and permeable road structure (2); A permeable road structure (2) is laid on top of the foundation soil layer (1), characterized in that the permeable road structure (2) comprises the following components: Impermeable layer (201): Located on top of the foundation soil layer (1), the impermeable layer (201) is made of impermeable membrane; Permeable cushion layer (202): laid on top of the impermeable layer (201), the permeable cushion layer (202) is made of ceramsite; Permeable base course (203): Lay on top of the permeable subbase (202), the permeable base course (203) is composed of graded crushed stone; Leveling layer (204): laid on top of permeable base layer (203), the leveling layer (204) is made of permeable concrete; Permeable pavement layer (205): It is laid on top of the leveling layer (204). The permeable pavement layer (205) is made of permeable bricks and the gaps of the permeable pavement layer (205) are filled with permeable mortar.
2. The permeable pedestrian walkway structure as described in claim 1, characterized in that: The permeable base layer (203) is provided with a drainage component (3) inside. The drainage component (3) includes an installation groove (301), a water collection pipe (3011), and a permeation hole (3012). The permeable base layer (203) is provided with an installation groove (301) inside. The installation groove (301) is provided with a water collection pipe (3011) inside. The top of the water collection pipe (3011) is provided with a permeation hole (3012).
3. The permeable pedestrian walkway structure as described in claim 2, characterized in that: The water collection pipe (3011) is provided with 10 pipes, and each water collection pipe (3011) is spaced 2 meters apart.
4. The permeable pedestrian walkway structure as described in claim 2, characterized in that: One end of the water collection pipe (3011) is fixedly connected to a central pipe (302), and the top of the central pipe (302) is provided with a curb stone (3021), and a protective groove (3022) is opened inside the curb stone (3021).
5. The permeable pedestrian walkway structure as described in claim 4, characterized in that: A drain bend (303) is fixedly connected to the middle of the central pipe (302).
6. The permeable pedestrian walkway structure as described in claim 1, characterized in that: The impermeable layer (201) has water-permeable holes with a spacing of 15 cm.