CN219586493U - Pavement structure for preventing and controlling slurry pollution of permeable pavement - Google Patents
Pavement structure for preventing and controlling slurry pollution of permeable pavement Download PDFInfo
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- CN219586493U CN219586493U CN202320515628.XU CN202320515628U CN219586493U CN 219586493 U CN219586493 U CN 219586493U CN 202320515628 U CN202320515628 U CN 202320515628U CN 219586493 U CN219586493 U CN 219586493U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The utility model relates to a pavement structure for preventing and treating slurry pollution of a permeable pavement, which comprises a cushion layer (E), a base layer (D), a reverse filtering layer (C), a bonding layer (B) and a surface layer (A); the cushion layer (E), the base layer (D), the reverse filtering layer (C), the bonding layer (B) and the surface layer (A) are sequentially laminated from bottom to top. The pavement structure adopts the material with better water permeability, and solves the problems of slow water discharge and low water discharge efficiency of pavement area.
Description
Technical Field
The utility model belongs to the technical field of sponge city design, and particularly relates to a pavement structure for preventing and treating slurry-turning pollution of a permeable pavement.
Background
The permeable pavement is used as a new environment-friendly and ecological road, has excellent characteristics of environment protection, ecology, comfort and the like, and has very high utilization rate in accelerating infrastructure construction and permeable pavement in sponge city construction in China at present. However, under the repeated cyclic load, the permeable pavement has the adverse phenomena that the roadbed soil slurry is extruded and ascended to the pavement after being liquefied, so that pavement pollution and pedestrian traffic are blocked, and therefore, the pavement structure for preventing and controlling the permeable pavement slurry pollution is provided.
Disclosure of Invention
The utility model provides a pavement structure for preventing and controlling slurry pollution of a permeable pavement, which is used for solving the problems of pavement pollution and pedestrian traffic blockage caused by the fact that soil slurry is extruded to the pavement after being liquefied under repeated cyclic load in sponge city construction. The pavement structure of the utility model also solves the problems of slow water discharge and low water discharge efficiency of pavement areas.
The utility model is realized by adopting the following technical scheme.
The pavement structure for preventing and controlling the slurry pollution of the permeable pavement comprises a cushion layer E, a base layer D, a reverse filtering layer C, a bonding layer B and a surface layer A; the cushion layer E, the base layer D, the reverse filtering layer C, the bonding layer B and the surface layer A are sequentially laminated from bottom to top;
the surface layer A comprises water permeable bricks 1 and T-shaped surface bricks 2 which are horizontally paved; the T-shaped brick 2 comprises a plane part 2.1 which is horizontally arranged and a vertical plane part 2.2 which is vertically arranged; the vertical surface part 2.2 is arranged at the lower part of the plane part 2.1;
the bonding layer B comprises a plurality of groups of slotted hole segments 3;
the reverse filter layer C comprises a first groove 4; the first groove 4 is arranged right below the slot segment 3 and is matched with the slot segment 3 in size;
the base layer D includes a second groove 5; the second groove 5 is arranged right below the first groove 4, and the first groove 4 is connected with the second groove 5 in a jogged manner;
the vertical surface part 2.2 of the T-shaped surface brick 2 passes through the slotted hole segment 3 and then is abutted with the slot surface of the first groove 4; the groove bottom of the first groove 4 is abutted with the groove surface of the second groove 5.
Furthermore, the utility model arranges a water collecting layer 6 at the lower part of the cushion layer E, and a first drain pipe 7 is embedded in the water collecting layer 6; a second drain pipe 8 is connected and arranged at the side part of the catchment layer 6.
Furthermore, the material of the surface layer A is water permeable brick, and the water permeability coefficient is more than or equal to 1.0 multiplied by 10 -2 cm/s。
Further, the bonding layer B is a middle sand layer.
Furthermore, the reverse filtering layer C is a composite geotechnical cloth layer.
Furthermore, the material of the base layer D is cement stabilized macadam, and the continuous porosity is more than or equal to 10%.
Further, the material of the cushion layer E is graded broken stone.
Furthermore, the pipe wall of the first drain pipe 7 is provided with plum blossom holes.
The utility model has the beneficial effects that: the pavement structure for preventing and treating the slurry-turning pollution of the permeable pavement is characterized in that a reverse filtering layer C is paved on the lower part of a pavement structure combining layer B, and the reverse filtering layer C is interlocked by combining a T-shaped pavement brick, so that the seepage water can permeate downwards rapidly by utilizing the reverse filtering layer C, and the characteristic of blocking the passage of soil particles is utilized, and the problems that the permeable pavement in sponge city construction is extruded to rise to the pavement after being liquefied by construction quality factors or repeated cyclic loads, and the pavement pollution and the pedestrian passage are blocked are solved; the pavement structure adopts the material with better water permeability, and solves the problems of slow water discharge and low water discharge efficiency of pavement area.
The utility model is further explained below with reference to the drawings and the detailed description.
Drawings
FIG. 1 is a schematic view of a three-dimensional structure of a pavement according to the present utility model;
FIG. 2 is a schematic cross-sectional view of the pavement of the present utility model;
FIG. 3 is a schematic perspective view of a T-shaped brick of the present utility model;
fig. 4 is a schematic view of a first drain pipe according to the present utility model.
The reference numerals are: the water permeable brick comprises an A-surface layer, a B-bonding layer, a C-inverse filter layer, a D-base layer, an E-cushion layer and a 1-water permeable brick; 2-T-shaped face bricks; 2.1-planar portions; 2.2-homeotropic portion; 3-slot segments; 4-a first groove; 5-a second groove; 6-a water collecting layer; 7-a first drain pipe; 8-a second drain pipe; 9-seepage hole.
Detailed Description
See fig. 1, 2, 3 and 4. The pavement structure for preventing and controlling the slurry pollution of the permeable pavement comprises a cushion layer E, a base layer D, a reverse filtering layer C, a bonding layer B and a surface layer A; the cushion layer E, the base layer D, the reverse filtering layer C, the bonding layer B and the surface layer A are sequentially laminated from bottom to top; each layer has a high-efficiency water permeability function;
the surface layer A comprises water permeable bricks 1 and T-shaped surface bricks 2 which are horizontally paved; the T-shaped brick 2 comprises a plane part 2.1 which is horizontally arranged and a vertical plane part 2.2 which is vertically arranged; the vertical surface part 2.2 is arranged at the lower part of the plane part 2.1; the T-shaped surface brick 2 has an interlocking function and mainly fixes the inverted filter C;
the bonding layer B comprises a plurality of groups of slotted hole segments 3;
the reverse filter layer C comprises a first groove 4; the first groove 4 is arranged right below the slot segment 3 and is matched with the slot segment 3 in size;
the base layer D includes a second groove 5; the second groove 5 is arranged right below the first groove 4, and the first groove 4 is connected with the second groove 5 in a jogged manner;
the vertical surface part 2.2 of the T-shaped surface brick 2 passes through the slotted hole segment 3 and then is abutted with the slot surface of the first groove 4; the groove bottom of the first groove 4 is abutted with the groove surface of the second groove 5.
Furthermore, the utility model arranges a water collecting layer 6 at the lower part of the cushion layer E, and a first drain pipe 7 is embedded in the water collecting layer 6; a second drain pipe 8 is connected and arranged at the side part of the catchment layer 6.
Furthermore, the material of the surface layer A is water permeable brick, and the water permeability coefficient is more than or equal to 1.0 multiplied by 10 -2 cm/s。
Furthermore, the bonding layer B is a middle sand layer, namely the middle sand is selected as the material, and the bonding layer B has water permeability.
Furthermore, the reverse filtering layer C is a composite geotechnical cloth layer, so that seepage water can be ensured to permeate downwards, and soil particles are prevented from passing through.
Furthermore, the material of the base layer D is cement stabilized macadam, and the continuous porosity is more than or equal to 10%.
Further, the material of the cushion layer E is graded broken stone.
Furthermore, the wall of the first drain pipe 7 is provided with a seepage hole 9.
Description of part of the principle of the utility model: the T-shaped face brick 8 passes through the middle sand layer, and part of the brick is embedded into the reverse filter layer C and reaches the base layer D. The T-shaped surface brick 2 has the function of water permeability and simultaneously extrudes the composite geotextile of the reverse filtering layer C, so that the composite geotextile is embedded and locked into the cement stabilized macadam of the base layer D. The material of the bonding layer B is paved by adopting medium sand and has water permeability.
The effective aperture of the selected composite geotechnical cloth is not larger than the characteristic grain diameter of the soil roadbed so as to prevent the soil grains from rising to the road surface after being extruded.
The continuous void ratio of the cement stabilized macadam is more than 10 percent, and the cement stabilized macadam has water permeability.
The pavement ponding of the sidewalk is permeated into the middle sand layer through the gaps of the permeable bricks 1 and the T-shaped surface bricks 2 and the brick body permeation holes, and is concentrated to collect water into the water collection layer 6 after sequentially passing through the composite geotechnical cloth layer, the permeable cement stabilized macadam and the graded macadam downwards, and the rainwater is discharged to the rainwater system by combining the first drainage pipe 7 and the second drainage pipe 8.
In the process of downward rainwater infiltration, the composite geotechnical cloth layer can infiltrate rainwater, so that soil particles are prevented from being extruded upwards to slurry to pollute the road surface.
The construction method of the utility model comprises the following steps:
and (3) removing unfavorable soil of the soil subgrade, leveling the surface of the subgrade by using a grader and a road roller, and compacting the soil subgrade, wherein the compaction degree of the soil subgrade is more than 92%.
After roadbed excavation, a water collecting layer 6 and a drainage pipeline are implemented, a first drainage pipe 7 is embedded in the water collecting layer, and a second drainage pipe 8 is arranged on the side portion.
Paving a cushion layer E with graded broken stone on the top surface of the soil subgrade, wherein the thickness of the cushion layer E is 10cm;
paving a base layer D with cement stabilized macadam on the upper part of the cushion layer E, wherein the continuous void ratio is more than 10%, and the thickness of the permeable cement stabilized macadam is 18cm;
according to the embedded size of the T-shaped surface brick 2, a second groove 5 is manually excavated on the surface of the base layer D.
The upper part of the base layer D is paved with a reverse filtering layer C by using composite geotextile.
The upper part of the reverse filtering layer C is paved with a bonding layer B by using middle sand.
And paving the T-shaped face bricks according to the excavated grooves, and paving the common water permeable bricks 1 after the T-shaped face bricks are installed.
TABLE 1 Water permeability requirement parameter table for materials of reverse filter layer C under different soil categories
TABLE 2 Water permeability requirement parameter table for B materials of bonding layer under different soil categories
The foregoing is merely an example of the present utility model, and the general knowledge of specific structures and characteristics known in the art (e.g., medium sand, composite geotextile, cement stabilized macadam, graded macadam, etc.) will not be described in any detail herein. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present utility model, which should also be considered as the scope of the present utility model, and which does not affect the effect and practicality of the implementation of the present utility model. The protection scope of the present utility model is subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.
Claims (8)
1. The pavement structure for preventing and controlling the slurry pollution of the permeable pavement is characterized by comprising a cushion layer (E), a base layer (D), a reverse filtering layer (C), a bonding layer (B) and a surface layer (A); the cushion layer (E), the base layer (D), the reverse filtering layer (C), the bonding layer (B) and the surface layer (A) are sequentially laminated from bottom to top;
the surface layer (A) comprises water permeable bricks (1) and T-shaped surface bricks (2) which are horizontally paved; the T-shaped brick (2) comprises a plane part (2.1) which is horizontally arranged and a vertical plane part (2.2) which is vertically arranged; the vertical surface part (2.2) is arranged at the lower part of the plane part (2.1);
the bonding layer (B) comprises a plurality of groups of slotted hole segments (3);
the reverse filter layer (C) comprises a first groove (4); the first groove (4) is arranged right below the slotted hole segment (3) and is matched with the slotted hole segment (3) in size;
the base layer (D) comprises a second groove (5); the second groove (5) is arranged right below the first groove (4), and the first groove (4) is connected with the second groove (5) in a jogged manner;
the vertical surface part (2.2) of the T-shaped surface brick (2) passes through the slotted hole section (3) and then is abutted with the slot surface of the first groove (4); the groove bottom of the first groove (4) is abutted with the groove surface of the second groove (5).
2. The pavement structure for preventing and treating water permeable pavement slurry pollution according to claim 1, wherein a water collecting layer (6) is arranged at the lower part of the cushion layer (E), and a first drain pipe (7) is embedded in the water collecting layer (6); and a second drain pipe (8) is connected and arranged at the side part of the catchment layer (6).
3. The pavement structure for preventing and treating slurry pollution of water permeable pavement according to claim 1, wherein the surface layer (a) is made of water permeable bricks, and the water permeability coefficient is not less than 1.0 x 10 -2 cm/s。
4. The pavement structure for preventing and controlling slurry pollution of water permeable pavement according to claim 1, wherein the bonding layer (B) is a middle sand layer.
5. The pavement structure for preventing and controlling slurry pollution of water permeable pavement according to claim 1, wherein the reverse filtering layer (C) is a composite geotechnical cloth layer.
6. The pavement structure for preventing and treating water permeable pavement slurry pollution according to claim 1, wherein the material of the base layer (D) is cement stabilized macadam, and the continuous porosity is not less than 10%.
7. The pavement structure for preventing and controlling slurry-turning pollution of water permeable pavement according to claim 1, wherein the material of the cushion layer (E) is graded crushed stone.
8. The pavement structure for preventing and treating the slurry-turning pollution of the permeable pavement according to claim 2, wherein the wall of the first drain pipe (7) is provided with a seepage hole (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320515628.XU CN219586493U (en) | 2023-03-16 | 2023-03-16 | Pavement structure for preventing and controlling slurry pollution of permeable pavement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320515628.XU CN219586493U (en) | 2023-03-16 | 2023-03-16 | Pavement structure for preventing and controlling slurry pollution of permeable pavement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219586493U true CN219586493U (en) | 2023-08-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320515628.XU Active CN219586493U (en) | 2023-03-16 | 2023-03-16 | Pavement structure for preventing and controlling slurry pollution of permeable pavement |
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| Country | Link |
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| CN (1) | CN219586493U (en) |
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2023
- 2023-03-16 CN CN202320515628.XU patent/CN219586493U/en active Active
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