Anti-blocking pervious concrete pavement structure

Abstract

The utility model relates to concrete pavement technical field, especially a kind of anti-clogging pervious concrete pavement structure, including rammed soil layer, and rammed soil layer upper end is provided with multiple groups of flow guide base, and flow guide base upper end is provided with first inclined groove, and flow guide base lower end is provided with second square groove;Second square groove inside is equipped with drain pipe, and first inclined groove upper end is wider than first inclined groove lower end, and first inclined groove lower end width is equal to second square groove width, and first inclined groove inside is filled with fine sand layer, and fine sand layer upper end is provided with coarse sand layer, and coarse sand layer upper end is provided with pervious concrete surface layer.In the utility model, pervious concrete surface layer provides initial penetration channel, and coarse sand layer and fine sand layer are layered and intercept different particle size impurities, to avoid blockage;The first inclined groove of flow guide base uses gradient to guide rainwater directional convergence, and after transition by second square groove, it is concentrated by drain pipe and is discharged, completely change the condition that rainwater is dispersed and detained in base layer, avoid base layer long-term waterlogging from root.

Description

Technical Field

[0001] This utility model relates to the field of concrete pavement technology, and in particular to an anti-clogging permeable concrete pavement structure. Background Technology

[0002] Permeable concrete pavement is a new type of urban paving material with highly efficient drainage capabilities. Its core principle is to optimize the pore structure to achieve natural rainwater infiltration and circulation. This type of structure typically consists of a permeable surface layer, a high-strength permeable base layer, and a water storage and drainage layer, forming a complete "infiltration-retention-storage-purification" water cycle system, allowing rainwater to quickly infiltrate and participate in the natural water cycle. In terms of application scenarios, it is widely applicable to municipal streets, commercial areas, residential areas, leisure areas, transportation hubs, parking lots, and ecologically sensitive areas, adapting to different urban environmental needs.

[0003] In actual use, existing permeable concrete pavement structures cannot effectively concentrate and divert rainwater after it seeps into the base layer, resulting in the base layer and bottom being in a damp state for a long time. This not only affects the stability and durability of the pavement structure, but may also cause the base layer materials to suffer from reduced strength due to long-term water immersion. Moreover, the long-term damp base environment becomes a breeding ground for bacteria. During the process of bacteria multiplying in large numbers, they produce an unpleasant odor. As water vapor evaporates or diffuses into the pavement surface through the pores, the pavement develops a noticeable foul smell, affecting the surrounding environment and pedestrian experience. Utility Model Content

[0004] To address the technical problems existing in the background art, the utility model provides an anti-clogging permeable concrete pavement structure, which solves the problem mentioned in the background art that rainwater cannot be effectively concentrated and diverted after infiltrating into the base layer, resulting in the base layer and bottom being in a damp state for a long time, affecting the stability and durability of the pavement structure. Moreover, the long-term damp base layer environment becomes a breeding ground for bacteria. During the process of bacteria multiplying in large numbers, they produce an unpleasant odor, which, as water vapor evaporates or diffuses into the pavement surface through pores, causes obvious foul smell problems on the pavement.

[0005] To achieve the above objectives, the technical solution provided by this utility model is as follows: A clog-resistant permeable concrete pavement structure includes a compacted soil layer, a guide base, a fine sand layer, a coarse sand layer, and a permeable concrete surface layer. Multiple sets of guide bases are provided at the upper end of the compacted soil layer. A first inclined groove is formed at the upper end of each guide base, and a second square groove is formed at the lower end of each guide base. A drainage pipe is installed inside the second square groove. The upper end of the first inclined groove is wider than its lower end, and the width of the lower end of the first inclined groove is equal to the width of the second square groove. The first inclined groove is filled with a fine sand layer, and a coarse sand layer is provided above the fine sand layer. The permeable concrete surface layer is provided above the coarse sand layer.

[0006] Preferably, filter screens are provided at both the upper and lower ends of the coarse sand layer.

[0007] Preferably, an activated carbon layer is provided on the outside of the drain pipe, and the activated carbon layer fills the inside of the second tank.

[0008] Preferably, the drain pipe has multiple sets of water inlet holes on its outer side, and a mesh screen is installed on the outer side of the drain pipe.

[0009] Preferably, the bottom surface of the flow guide base is provided with anti-slip protrusions.

[0010] Preferably, the density of the inlet holes on both sides of the drain pipe is higher than the density of the inlet holes on the top and bottom sides of the drain pipe. This invention has the following advantages and beneficial effects: In this utility model: The permeable concrete surface layer provides initial infiltration channels, while the coarse sand layer and fine sand layer intercept impurities of different particle sizes to avoid clogging. The first inclined groove of the guide base uses the slope to guide rainwater to converge in a specific direction. After passing through the second square groove, it is discharged centrally through the drainage pipe, which completely changes the situation of rainwater being dispersed and stagnant in the base layer, realizing the rapid discharge of rainwater and preventing long-term water accumulation in the base layer from the root. Attached Figure Description

[0011] Figure 1 This is a partial cross-sectional schematic diagram of an anti-clogging permeable concrete pavement structure proposed in this utility model; Figure 2 This is a side view of a permeable concrete pavement structure for clogging prevention proposed in this utility model. Figure 3 This is a front view schematic diagram of an anti-clogging permeable concrete pavement structure proposed in this utility model; Figure 4 This is a schematic diagram of a permeable concrete pavement structure for preventing clogging, as proposed in this utility model.

[0012] Attached reference numerals: 1-Compacted soil layer, 2-Guiding base, 21-Anti-slip ridge, 3-First inclined trough, 4-Second square trough, 5-Fine sand layer, 6-Activated carbon layer, 7-Drainage pipe, 71-Water inlet hole, 72-Screen mesh, 8-Filter screen, 9-Coarse sand layer, 10-Permeable concrete surface layer. Detailed Implementation

[0013] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0014] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0015] Example like Figures 1-4 As shown, a permeable concrete pavement structure for preventing clogging includes a compacted soil layer 1, a guide base 2, a fine sand layer 5, a coarse sand layer 9, and a permeable concrete surface layer 10. Multiple sets of guide bases 2 are provided at the upper end of the compacted soil layer 1. A first inclined groove 3 is formed at the upper end of the guide base 2, and a second square groove 4 is formed at the lower end of the guide base 2. A drainage pipe 7 is installed inside the second square groove 4. The upper end of the first inclined groove 3 is wider than the lower end of the first inclined groove 3, and the width of the lower end of the first inclined groove 3 is equal to the width of the second square groove 4. The first inclined groove 3 is filled with a fine sand layer 5, and a coarse sand layer 9 is provided at the upper end of the fine sand layer 5. The permeable concrete surface layer 10 is provided at the upper end of the coarse sand layer 9.

[0016] During use, the permeable concrete surface layer 10 serves as the road surface layer, directly receiving rainwater and providing initial infiltration channels. The coarse sand particles are relatively large and have moderate porosity, which can intercept larger impurities brought by rainwater from the permeable concrete surface layer 10, preventing impurities from entering deeper structures and causing blockages. The fine sand layer 5 has fine sand particles and dense pores, which can further filter fine impurities in the rainwater. The first inclined trough 3 has an inclined structure design that is "wider at the top and narrower at the bottom", that is, the first inclined trough 3 is a conical trough structure. Its inclined slope uses gravity to guide the rainwater in the fine sand layer 5 to flow to the lower end of the trough, solving the problem of "dispersed infiltration and inability to concentrate" of rainwater in the base layer. The compacted soil layer 1 is the bottom foundation of the entire road structure, bearing the load of all structures above.

[0017] like Figures 1-4 As shown, filter screens 8 are installed at both the upper and lower ends of the coarse sand layer 9. The filter screens 8 at the upper and lower ends of the coarse sand layer 9 mainly play the roles of interlayer separation, particle barrier and functional protection. They can prevent coarse sand particles in the coarse sand layer 9 from moving upward into the pores of the permeable concrete surface layer 10 due to external forces such as vehicle crushing or water flow impact, thus avoiding the surface layer pores being blocked by coarse sand and reducing permeability. At the same time, the filter screens 8 allow rainwater filtered by the coarse sand layer 9 to smoothly penetrate into the fine sand layer 5, which not only ensures the continuity of water flow, but also prevents fine sand particles from moving upward to the coarse sand layer 9 due to water flow scouring, maintains the functional stability of the two sand layers, and ultimately ensures the long-term effectiveness of the entire filtration-guidance system.

[0018] like Figures 1-4As shown, an activated carbon layer 6 is provided on the outside of the drain pipe 7. The activated carbon layer 6 fills the inside of the second square groove 4. Activated carbon has a rich pore structure and strong adsorption performance, which can adsorb residual bacteria, microorganisms and metabolites in rainwater and inhibit the growth and reproduction of bacteria around the drain pipe 7. The activated carbon layer 6 fills the inside of the second square groove 4 and wraps the outside of the drain pipe 7. By utilizing the dense stacking characteristics between the activated carbon particles, it provides uniform lateral support for the drain pipe 7.

[0019] like Figures 1-4 As shown, multiple sets of water inlet holes 71 are opened on the outside of the drain pipe 7, and a mesh 72 is installed on the outside of the drain pipe 7. With its fine mesh structure, the mesh 72 can intercept activated carbon particles and prevent them from entering the interior of the drain pipe 7 through the water inlet holes 71. At the same time, it allows rainwater to pass smoothly through the mesh and enter the pipe. This ensures that the water flow function of the water inlet holes 71 is not affected, and also prevents the drain pipe 7 from failing due to blockage by foreign objects, thus maintaining smooth drainage for a long time.

[0020] like Figures 1-4 As shown, the bottom surface of the flow guide base 2 is provided with anti-slip protrusions 21. Through the physical interlocking of the protrusions with the surface of the compacted soil layer 1, the friction between the flow guide base 2 and the lower compacted soil layer 1 is increased. The distribution density of the water inlet holes 71 on both sides of the drainage pipe 7 is higher than that of the water inlet holes 71 on the upper and lower sides of the drainage pipe 7. The differentiated distribution design ensures efficient collection of water flow on both sides while taking into account the structural stability of the drainage pipe 7 and avoiding strength loss caused by ineffective openings.

[0021] When using the anti-clogging permeable concrete pavement structure, during rainfall, rainwater first falls on the permeable concrete surface layer 10 and seeps downward through the interconnected pores of the surface layer. Larger impurities such as fallen leaves and gravel are intercepted by the surface layer. The infiltrated rainwater enters the coarse sand layer 9, which filters out larger particles of impurities in the rainwater with its moderate pores. At the same time, the upper and lower filter screens 8 respectively prevent coarse sand particles from moving up to the surface layer and fine sand particles from moving up to the coarse sand layer 9, maintaining the functional stability of the two sand layers. The rainwater filtered by the coarse sand layer 9 continues to seep into the fine sand layer 5, where the dense pores further filter out fine mud and other impurities.

[0022] Because the first inclined trough 3 has an inclined design that is "wider at the top and narrower at the bottom", under the action of gravity, the rainwater in the fine sand layer 5 flows down the slope of the trough, which solves the problem of the difficulty in concentrating the dispersed infiltration of rainwater in the traditional base layer and realizes the directional collection of rainwater. The rainwater collected at the bottom of the first inclined trough 3 passes through the fine sand layer 5 and enters the activated carbon layer 6 of the second square trough 4. The activated carbon adsorbs harmful substances such as bacteria and microorganisms remaining in the rainwater with its rich pores, inhibiting their growth around the drainage pipe 7.

[0023] The purified rainwater enters the drain pipe 7 through the inlet hole 71 on the outside of the drain pipe 7. Because the inlet hole 71 on both sides of the drain pipe 7 has a higher distribution density, it can efficiently collect the main water flow from both sides, while avoiding strength loss caused by ineffective openings on the top and bottom sides. The mesh 72 on the outside of the drain pipe 7 intercepts activated carbon particles through its fine mesh, preventing them from clogging the inlet hole 71, ensuring that rainwater enters the drain pipe 7 smoothly and is eventually discharged.

[0024] This is merely a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A permeable concrete pavement structure for preventing clogging, comprising a compacted soil layer (1), a guide base (2), a fine sand layer (5), a coarse sand layer (9), and a permeable concrete surface layer (10), characterized in that: Multiple sets of flow guide bases (2) are provided at the upper end of the compacted soil layer (1). A first inclined groove (3) is provided at the upper end of the flow guide base (2), and a second square groove (4) is provided at the lower end of the flow guide base (2). The second square trough (4) is equipped with a drainage pipe (7). The upper end of the first inclined trough (3) is wider than the lower end of the first inclined trough (3). The width of the lower end of the first inclined trough (3) is equal to the width of the second square trough (4). The first inclined trough (3) is filled with a fine sand layer (5). A coarse sand layer (9) is provided on the upper end of the fine sand layer (5). A permeable concrete surface layer (10) is provided on the upper end of the coarse sand layer (9).

2. The anti-clogging permeable concrete pavement structure according to claim 1, characterized in that: The first inclined groove (3) is an inclined structure that is wider at the top and narrower at the bottom.

3. The anti-clogging permeable concrete pavement structure according to claim 1, characterized in that: The coarse sand layer (9) is equipped with filter screens (8) at both the top and bottom.

4. The anti-clogging permeable concrete pavement structure according to claim 1, characterized in that: An activated carbon layer (6) is provided on the outside of the drain pipe (7), and the activated carbon layer (6) fills the inside of the second groove (4).

5. The anti-clogging permeable concrete pavement structure according to claim 1, characterized in that: The drain pipe (7) has multiple sets of water inlet holes (71) on its outer side, and a mesh screen (72) is installed on the outer side of the drain pipe (7).

6. The anti-clogging permeable concrete pavement structure according to claim 1, characterized in that: The bottom surface of the flow guide base (2) is provided with anti-slip protrusions (21).

7. The anti-clogging permeable concrete pavement structure according to claim 1, characterized in that: The distribution density of the water inlet holes (71) on both sides of the drain pipe (7) is higher than the density of the water inlet holes (71) on the upper and lower sides of the drain pipe (7).

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