CN211713564U

CN211713564U - Sponge permeable pavement with rainwater collection and guiding functions

Info

Publication number: CN211713564U
Application number: CN201922263866.2U
Authority: CN
Inventors: 韩君; 谢爱华
Original assignee: Suzhou Institute Of Landscape Architecture Design Co ltd
Current assignee: Suzhou Landscape Design Institute Co ltd
Priority date: 2019-12-17
Filing date: 2019-12-17
Publication date: 2020-10-20
Anticipated expiration: 2029-12-17

Abstract

The utility model discloses a sponge permeable pavement for rainwater collection and guide, which comprises a tamped plain soil layer, a graded gravel layer is laid above the tamped plain soil layer, a main plain concrete layer is arranged above the graded gravel layer, a single-layer bidirectional steel bar is arranged in the main plain concrete layer, a drainage ditch area is arranged on one side of the main plain concrete layer along the length direction, plastic blind ditch pipes are arranged in the drainage ditch area along the length direction, a geotextile layer is wrapped outside the plastic blind ditch pipes, a gravel buffer layer and a natural stone exposed aggregate permeable concrete surface layer are sequentially arranged above the main plain concrete layer, one side of the graded gravel layer is provided with a rainwater garden foundation area and a rainwater garden water accumulation area, a plurality of overflow ports which are arranged at equal intervals are communicated between the plastic blind ditch pipes and the rainwater garden foundation area, and through the mode, the utility model can effectively achieve the effect of collecting, purifying and recycling of rainwater on the pavement, the cost is lower, is convenient for construct.

Description

Sponge permeable pavement with rainwater collection and guiding functions

Technical Field

The utility model relates to a road surface drainage technical field especially relates to a sponge permeable pavement of direction is collected to rainwater.

Background

The modern people generally advocate ecological landscape construction, the proposal of sponge city and rain flood management concept require that the low-influence development mode is adopted in the city development and construction process, the rainwater is collected, and the initial rainwater containing high-concentration nitrogen and phosphorus is discharged after being purified, so that the pollution to underground water is reduced.

The permeable pavement is an important technical measure of sponge cities and is widely applied to sidewalks, squares, non-motor vehicle lanes of municipal roads and the like, and the permeable pavement can enable rainwater to quickly seep downwards, reduce road surface runoff, relieve urban drainage pressure and improve pavement skid resistance; however, the traditional permeable pavement can only meet the requirement of direct infiltration of rainwater, and cannot be collected, purified and recycled, so that a pavement structure system which can realize rainwater infiltration and can be collected and recycled is urgently needed.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the main technical problem who solves provides a sponge permeable pavement of direction is collected to rainwater, can effectively reach the effect that the purification was recycled in the collection of road surface rainwater, and the cost is lower, the construction of being convenient for.

In order to solve the technical problem, the utility model discloses a technical scheme be: the sponge permeable pavement comprises a rammed plain soil layer, a graded broken stone layer is laid above the rammed plain soil layer, a main plain concrete layer is arranged above the graded broken stone layer, a single-layer bidirectional steel bar is arranged in the main plain concrete layer, a drainage ditch area is arranged on one side of the main plain concrete layer along the length direction, plastic blind ditch pipes are arranged in the drainage ditch area along the length direction, a geotextile layer is wrapped outside the plastic blind ditch pipes, a broken stone buffer layer and a natural stone exposed aggregate permeable concrete surface layer are sequentially arranged above the main plain concrete layer, a rainwater garden foundation area and a rainwater garden water accumulation area are arranged on one side of the graded broken stone layer, and a plurality of overflow ports which are arranged at equal intervals are communicated between the plastic blind ditch pipes and the rainwater garden foundation area.

Preferably, a plain concrete cushion layer is arranged between the drainage ditch area and the graded gravel layer, and the plastic blind ditch pipe is arranged above the plain concrete cushion layer.

Preferably, the plain concrete cushion layer has a gradient of 2.5 to 3.5 percent along the extension direction of the plastic blind ditch pipe.

Preferably, the main plain concrete layer is C30 plain concrete and has a thickness of 100-120 mm.

Preferably, the thickness of the graded broken stone layer is 200-250 mm.

The utility model has the advantages that: the utility model provides a pair of sponge permeable pavement of direction is collected to rainwater can effectively infiltrate the rainwater on road surface on the spot, obtains to collect the purpose of purifying and recycling, and the construction is simple and convenient, has good industrial applicability.

Drawings

Fig. 1 is a schematic structural view of a rainwater collection and guiding sponge permeable pavement of the present invention;

the parts in the drawings are numbered as follows:

1. tamping a plain soil layer; 2. grading a crushed stone layer; 3. a main plain concrete layer; 4. a single layer of bidirectional rebar; 5. a drain area; 6. a plastic blind ditch pipe; 7. a geotextile layer; 8. a macadam buffer layer; 9. natural stone exposed aggregate permeable concrete surface layer; 10. a rain garden foundation area; 11. a rainwater garden catchment area; 12. an overflow port;

13. and (4) a plain concrete cushion layer.

Detailed Description

The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.

As shown in figure 1, the sponge permeable pavement for rainwater collection and guiding comprises a rammed plain soil layer 1, a graded gravel layer 2 is laid above the rammed plain soil layer 1, the preferred thickness of the graded gravel layer 2 is 200-250 mm, the transition effect of leveling and supporting an upper main plain concrete structure is achieved above the rammed plain soil structure, the structural strength of the pavement is enhanced, and good water permeability and diffusion stress are achieved.

As shown in fig. 1, after the graded broken stone structure is laid, erecting a formwork and pouring a main plain concrete layer 3, wherein the main plain concrete layer 3 is preferably C30 plain concrete with a thickness of 100-120 mm and is used for providing adaptive base support strength; the structure can provide enough supporting strength, but if the toughness of structure is not enough, the cracked phenomenon of settlement may produce, consequently in order to guarantee the toughness and the intensity of structure simultaneously, prevents to subside the fracture problem, is provided with single-deck two-way reinforcing bar 4 in main plain concrete layer 3, and the diameter of reinforcing bar can be selected to 8 ~ 10mm, interval 200 mm.

As shown in fig. 1, a drainage channel area 5 is arranged on one side of a main plain concrete layer 3 along the length direction, plastic blind channel pipes 6 are arranged in the drainage channel area 5 along the length direction, the plastic blind channel pipe structure takes thermoplastic synthetic resin as a main raw material and is modified, thin plastic filaments are extruded out through a nozzle in a hot melting state, and the extruded plastic filaments are welded on nodes through a forming device to form a three-dimensional net-shaped structure.

As shown in fig. 1, in order to filter the rainwater and the silt contained in the road, a geotextile layer 7 is coated outside the plastic blind ditch pipe 6, and the rainwater which permeates is firstly filtered by the geotextile layer 7 and then permeates into the plastic blind ditch pipe 6 to be guided and collected. A plain concrete cushion layer 13 is arranged between the drainage ditch area 5 and the graded crushed stone layer 2, the plastic blind ditch pipe 6 is arranged above the main plain concrete layer 3, and in order to further improve the diversion and collection effect, the plain concrete cushion layer 13 is in a gradient of 2.5-3.5% along the extension direction of the plastic blind ditch pipe 6 by utilizing the flow direction of water flow.

As shown in fig. 1, a broken stone buffer layer 8 and a natural stone exposed aggregate water permeable concrete surface layer 9 are sequentially arranged above the main concrete layer 3, the natural stone exposed aggregate water permeable concrete surface structure has porosity, high water permeability is realized, water can easily pass through, and the broken stone buffer structure is used for assisting in transferring buffer and supporting pavement load and simultaneously permeating rainwater. One side of the graded gravel layer 2 is provided with a rainwater garden foundation area 10 and a rainwater garden ponding area 11, a plurality of overflow ports 12 which are distributed at equal intervals are communicated between the plastic blind ditch pipe 6 and the rainwater garden foundation area 10, rainwater collected by the plastic blind ditch pipe 6 is discharged into the rainwater garden foundation area 10 through the overflow ports 12, the root system in the garden can effectively purify the rainwater, and the purified water is discharged into the rainwater garden ponding area 11 to be recycled in other aspects.

The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.

Claims

1. The utility model provides a sponge permeable pavement of direction is collected to rainwater which characterized in that: the rainwater garden soil layer comprises a rammed plain soil layer (1), a graded broken stone layer (2) is laid above the rammed plain soil layer (1), a main plain concrete layer (3) is arranged above the graded broken stone layer (2), a single-layer bidirectional steel bar (4) is arranged in the main plain concrete layer (3), a drainage ditch area (5) is arranged on one side of the main plain concrete layer (3) along the length direction, plastic blind ditch pipes (6) are arranged in the drainage ditch area (5) along the length direction, a geotextile layer (7) covers the plastic blind ditch pipes (6), a gravel buffer layer (8) and a natural stone exposed aggregate water permeable concrete surface layer (9) are sequentially arranged above the main plain concrete layer (3), a rainwater garden foundation area (10) and a rainwater garden water accumulation area (11) are arranged on one side of the graded broken stone layer (2), and a plurality of overflow ports (12) which are arranged at equal intervals are communicated and arranged between the plastic blind ditch pipes (6) and the rainwater garden foundation area (10) .

2. The sponge permeable pavement for collecting and guiding rainwater according to claim 1, which is characterized in that: a plain concrete cushion layer (13) is arranged between the drainage ditch region (5) and the graded gravel layer (2), and the plastic blind ditch pipe (6) is arranged above the plain concrete cushion layer (13).

3. The sponge permeable pavement for collecting and guiding rainwater according to claim 2, which is characterized in that: the plain concrete cushion layer (13) is 2.5% -3.5% of gradient along the extension direction of the plastic blind ditch pipe (6).

4. The sponge permeable pavement for collecting and guiding rainwater according to claim 1, which is characterized in that: the main plain concrete layer (3) is C30 plain concrete and has a thickness of 100-120 mm.

5. The sponge permeable pavement for collecting and guiding rainwater according to claim 1, which is characterized in that: the thickness of the graded broken stone layer (2) is 200-250 mm.