CN213740409U - Sponge urban drainage road surface - Google Patents
Sponge urban drainage road surface Download PDFInfo
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- CN213740409U CN213740409U CN202022051027.7U CN202022051027U CN213740409U CN 213740409 U CN213740409 U CN 213740409U CN 202022051027 U CN202022051027 U CN 202022051027U CN 213740409 U CN213740409 U CN 213740409U
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Abstract
The utility model relates to a sponge urban drainage road surface relates to road drainage's technical field, and it includes: an underlayer; the drainage pipeline is arranged on the subbase layer, and the wall of the drainage pipeline is provided with a filter hole; the first gravel layer is laid on the underlayer and wraps the outer side of the drainage pipeline; the second crushed stone layer is laid on the first crushed stone layer, and the particle size of the second crushed stone layer is smaller than that of the first crushed stone layer; the permeable concrete layer is laid on the second gravel layer; the lower half part of the drainage pipeline is embedded in the underlayer, and the upper half part of the drainage pipeline protrudes out of the surface of the underlayer; the filtering holes are arranged on the part of the pipe wall of the drainage pipe, which protrudes out of the subbase layer. This application can alleviate the rainwater to the washing away of road, has the strong effect of drainage effect simultaneously.
Description
Technical Field
The application relates to the technical field of road drainage, in particular to a sponge urban drainage pavement.
Background
The sponge city is a new generation of city rainfall flood management concept, is embodied in directional drainage, collection and reuse of rainwater, enables the city to be like a sponge, and has good elasticity in the aspects of adapting to environmental changes, bringing natural disasters to rainwater and the like.
At present, in the aspect of dealing with water drainage and storage of roads, drainage ditches are generally arranged on two sides of a road, and when a rainy day occurs, rainwater flows into the drainage ditches along the road to the two sides and enters a specified area under the directional guiding action of the drainage ditches, so that the drainage and collection of the rainwater are realized. However, in the drainage mode, firstly, the rainwater easily scours the road in the process of flowing to the drainage ditches at two sides, and the sand on the surface layer of the road is brought into the drainage ditches, and secondly, the water is easily accumulated in the center of the road, and the drainage effect is poor.
SUMMERY OF THE UTILITY MODEL
In order to alleviate the rainwater to the washing away of road, strengthen drainage effect simultaneously, this application provides a sponge city drainage road surface.
The application provides a sponge urban drainage road surface adopts following technical scheme:
a sponge urban drainage pavement comprising:
an underlayer;
the drainage pipeline is arranged on the subbase layer, and the wall of the drainage pipeline is provided with a filter hole;
the first gravel layer is laid on the underlayer and wraps the outer side of the drainage pipeline;
the second crushed stone layer is laid on the first crushed stone layer, and the particle size of the second crushed stone layer is smaller than that of the first crushed stone layer; and
and the pervious concrete layer is laid on the second gravel layer.
Through adopting above-mentioned technical scheme, during the rainy day, the rainwater is at first downward infiltration through the concrete layer that permeates water, loops through second metalling and first metalling, finally gets into in the drainage pipe through the filtration pore, along the directional discharge of drainage pipe. The permeable concrete layer is arranged on the topmost layer of the whole pavement and is used for enhancing the integral compressive strength of the pavement surface layer; the second gravel layer has smaller particle size, the integrity of the second gravel layer is second to that of the pervious concrete layer, so that the pavement structure is not too loose, the stability is stronger, rainwater can downwards permeate to the first gravel layer along the tiny gaps of the stones, the particle size of the first gravel layer is larger than that of the second gravel layer, the infiltration of accumulated water is facilitated, and the accumulated water can quickly enter the drainage pipeline; finally, the drainage pipelines are arranged under the road surface instead of the two sides of the road, rainwater on the whole road surface can permeate downwards and be discharged, rainwater is prevented from being accumulated in the center of the road surface, and the rainwater is prevented from washing the road surface.
Preferably, the lower half part of the drainage pipeline is embedded in the bottom base layer, and the upper half part of the drainage pipeline protrudes out of the surface of the bottom base layer;
the filtering holes are arranged on the part of the pipe wall of the drainage pipe, which protrudes out of the subbase layer.
Through adopting above-mentioned technical scheme, the rainwater passes through inside back of filtration pore entering drainage pipe, flows along drainage pipe's bottom, because drainage pipe's the latter half does not have the filtration pore, and the rainwater can not permeate to the soil body on every side once more through drainage pipe in, has guaranteed the directional emission of rainwater.
Preferably, the surface of the subbase layer is paved with a waterproof felt.
Through adopting above-mentioned technical scheme, the setting up of waterproof felt firstly can play directional guide to the rainwater, guarantees in the rainwater gets into drainage pipe fast, secondly can effectively protect the subbase, prevents under the long-term erosion effect of rainwater that the subbase subsides to lead to whole road surface to subside.
Preferably, in a vertical section of the road surface, the drainage pipeline is located in the middle of the underlayer, the surface of the underlayer is an inclined plane which is symmetrical relative to the drainage pipeline, and the inclined plane gradually rises from the center of the underlayer to two sides.
By adopting the technical scheme, the inclined plane is used for directionally guiding the seeped water, so that the rainwater enters the drainage pipeline along the inclined planes on the two sides.
Preferably, the outside of the drainage pipeline is covered with a filter screen.
Through adopting above-mentioned technical scheme, the setting of filter screen is in order to separate the fender to the stone, prevents in the use on construction or later stage road surface that the stone in the first rubble layer blocks up the filtration pore, has also born partial pressure simultaneously, effectively protects drainage pipe.
Preferably, the upper surface of the pervious concrete layer is also provided with brick bodies side by side, and a gap is formed between every two adjacent brick bodies.
Through adopting above-mentioned technical scheme, the setting up of the brick body has further strengthened the compressive strength on road surface layer, is equipped with the clearance moreover between the brick body, and the rainwater can permeate through the clearance downwards, can not influence the emission of rainwater.
Preferably, a plurality of inclined holes are formed in the brick body, and drain holes communicated with the inclined holes are formed in the surface of the brick body.
By adopting the technical scheme, rainwater on the surface of the brick body can be discharged downwards through the drain hole, enter the inclined hole and be discharged into the gap between the adjacent brick bodies along the inclined hole, and accumulated water on the surface of the brick body is avoided.
Preferably, each inclined hole is correspondingly communicated with a plurality of drainage holes.
By adopting the technical scheme, the drainage way of rainwater is increased.
In summary, the present application has the following beneficial technical effects:
the permeable concrete layer is arranged on the topmost layer of the whole pavement and is used for enhancing the integral compressive strength of the pavement surface layer; the second gravel layer has smaller particle size, the integrity of the second gravel layer is second to that of the pervious concrete layer, so that the pavement structure is not too loose, the stability is stronger, rainwater can downwards permeate to the first gravel layer along the tiny gaps of the stones, the particle size of the first gravel layer is larger than that of the second gravel layer, the infiltration of accumulated water is facilitated, and the accumulated water can quickly enter the drainage pipeline; finally, the drainage pipelines are arranged under the road surface instead of the two sides of the road, rainwater on the whole road surface can permeate downwards and be discharged, rainwater is prevented from being accumulated in the center of the road surface, and the rainwater is prevented from washing the road surface.
Drawings
FIG. 1 is a schematic overall structure diagram of a sponge urban drainage pavement provided by the embodiment of the application.
FIG. 2 is a sectional view taken along the axis of the drainpipe in FIG. 1.
FIG. 3 is a sectional view taken perpendicular to the axis of the drainpipe of FIG. 1.
In the figure, 1, an underlayer; 2. a water discharge pipeline; 21. filtering holes; 22. filtering with a screen; 3. a first crushed stone layer; 4. a second crushed stone layer; 5. a pervious concrete layer; 6. a waterproof felt; 7. a brick body; 71. an oblique hole; 72. and (4) draining the water.
Detailed Description
The present application is described in further detail below with reference to figures 1-3.
Referring to fig. 1, a sponge urban drainage pavement disclosed in the embodiments of the present application includes an underlayer 1, a first gravel layer 3, a second gravel layer 4, and a permeable concrete layer 5 sequentially disposed from the bottom of a predetermined foundation pit upward, and a drainage pipeline 2 is embedded between the underlayer 1 and the first gravel layer 3.
Referring to fig. 2 and 3, the sub-base layer 1 is located at the bottommost part of the foundation pit, has the highest compactness, and bears the pressure from the upper soil layer and the earth surface; the drainage pipeline 2 is positioned on the upper surface of the subbase layer 1, the pipe wall of the drainage pipeline 2 is provided with the filter holes 21, rainwater can enter the drainage pipeline 2 through the filter holes 21, and multiple groups of drainage pipelines 2 can be arranged in practical application to increase the drainage path of the rainwater; the particle size of the stones in the first crushed stone layer 3 is larger than that of the stones in the second crushed stone layer 4; the pervious concrete layer 5 is positioned on the top of the second gravel layer 4, the pervious concrete layer 5 is mainly formed by stirring and mixing concrete, small stones and a pervious agent, and the overall strength and compactness of the pervious concrete layer are greater than those of the second gravel layer 4.
In rainy days, rainwater firstly permeates downwards through the pervious concrete layer 5, sequentially passes through the second gravel layer 4 and the first gravel layer 3, finally enters the drainage pipeline 2 through the filter holes 21, and is discharged directionally along the drainage pipeline 2. The pervious concrete layer 5 is arranged on the topmost layer of the whole pavement and is used for enhancing the overall compressive strength of the pavement surface layer; the second gravel layer 4 is smaller in particle size and second in integrity to the pervious concrete layer 5, so that the pavement structure is not too loose, the stability is stronger, rainwater can downwards permeate to the first gravel layer 3 along the tiny gaps of the stones, the particle size of the first gravel layer 3 is larger than that of the second gravel layer 4, seeper can be more favorably permeated, and the seeper can quickly enter the drainage pipeline 2; finally, the drainage pipeline 2 is arranged under the road surface, but not on two sides of the road, rainwater on the whole road surface can be downward permeated and discharged, so that rainwater accumulated in the center of the road surface is avoided, and the rainwater is prevented from washing the road surface.
Referring to fig. 2 and 3, as a specific implementation of the sponge urban drainage pavement provided by the embodiment of the present application, half of the drainage pipeline 2 is embedded in the sub-base 1, and the other half protrudes from the surface of the sub-base 1, and meanwhile, the filter pores 21 are only opened at the part of the pipe wall of the drainage pipeline 2 protruding from the sub-base 1. After rainwater enters the interior of the drainage pipeline 2 through the filter holes 21, the rainwater flows along the bottom of the drainage pipeline 2, and because the lower half part of the drainage pipeline 2 is free of the filter holes 21, the rainwater cannot permeate into the surrounding soil body again through the drainage pipeline 2, so that the directional drainage of the rainwater is ensured.
Further, in the construction process of the road surface, after the subbase 1 is paved, the waterproof felt 6 is paved on the surface of the subbase 1, and the drainage pipeline 2 is arranged above the waterproof felt 6. When the rainwater penetrates to the bottom of the first gravel layer 3, the rainwater cannot penetrate downwards, flows to the drainage pipeline 2 along the waterproof felt 6 and enters the drainage pipeline 2; the waterproof felt 6 is arranged to be capable of guiding rainwater directionally, so that rainwater can enter the drainage pipeline 2 quickly, the sub-base layer 1 can be effectively protected, the sub-base layer 1 is prevented from being settled under the long-term erosion effect of the rainwater, and the whole pavement is settled.
Referring to fig. 2 and 3, further, in a vertical section of the road surface, the drainage pipe 2 is located at a middle position of the sub-base 1, and an upper surface of the sub-base 1 is provided as an inclined surface, specifically, the inclined surface is symmetrically arranged with respect to the drainage pipe 2 and gradually rises from the position of the drainage pipe 2 to both sides. The function of the inclined surface is also to guide the seeped water in a directional way, so that the rainwater enters the drainage pipeline 2 along the inclined surfaces at the two sides.
Referring to fig. 2 and 3, as a specific implementation of the sponge urban drainage pavement provided in this embodiment of the present application, a filter screen 22 is coated outside the drainage pipeline 2, and the filter screen 22 is arranged to block stones, so as to prevent the stones in the first gravel layer 3 from blocking the filter holes 21 during construction or later use of the pavement, and bear a part of pressure, thereby effectively protecting the drainage pipeline 2.
Referring to fig. 2 and 3, as a specific implementation of the sponge urban drainage pavement provided in the embodiment of the present application, a brick body 7 is disposed on the upper surface of the pervious concrete layer 5, a plurality of brick bodies 7 are disposed side by side on the surface of the pervious concrete layer 5, and a gap is left between each two adjacent brick bodies 7. The setting of the brick body 7 has further strengthened the compressive strength on road surface layer, is equipped with the clearance moreover between the brick body 7, and the rainwater can permeate through the clearance downwards, can not influence the emission of rainwater.
Further, a plurality of oblique holes 71 are formed in the brick body 7 side by side, two ends of each oblique hole 71 are communicated with the side surface of the brick body 7, and a drain hole 72 communicated with the oblique holes 71 is formed in the upper surface of the brick body 7. Rainwater on the surface of the brick body 7 can be discharged downwards through the drainage hole 72 and enter the inclined hole 71. And is discharged into the gap between the adjacent brick bodies 7 along the oblique hole 71, so that water accumulation on the surfaces of the brick bodies 7 is avoided.
Furthermore, each inclined hole 71 is correspondingly communicated with a plurality of drainage holes 72, and the drainage holes 72 are arranged at intervals along the axial direction of the inclined hole 71, so that the drainage path of rainwater on the surface of the brick body 7 is increased.
The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. A sponge urban drainage road surface, its characterized in that includes:
an underlayer (1);
the drainage pipeline (2) is arranged on the subbase layer (1), and the pipe wall of the drainage pipeline (2) is provided with a filter hole (21);
the first gravel layer (3) is laid on the base layer (1) and wraps the outer side of the drainage pipeline (2);
the second crushed stone layer (4) is laid on the first crushed stone layer (3), and the particle size of the second crushed stone layer (4) is smaller than that of the first crushed stone layer (3); and
and the pervious concrete layer (5) is laid on the second gravel layer (4).
2. The sponge urban drainage pavement according to claim 1, characterized in that: the lower half part of the drainage pipeline (2) is embedded in the underlayer (1), and the upper half part of the drainage pipeline protrudes out of the surface of the underlayer (1);
the filtering holes (21) are arranged on the pipe wall of the drainage pipeline (2) and protrude out of the part of the subbase layer (1).
3. The sponge urban drainage pavement according to claim 2, characterized in that: and a waterproof felt (6) is laid on the surface of the subbase layer (1).
4. The sponge urban drainage pavement according to claim 3, characterized in that: in the vertical section of the road surface, the drainage pipeline (2) is positioned in the middle of the underlayer (1), the surface of the underlayer (1) is an inclined plane which is symmetrical relative to the drainage pipeline (2), and the inclined plane is gradually raised from the center of the underlayer (1) to two sides.
5. A sponge urban drainage pavement according to any one of claims 1 to 4, characterized in that: the outside of the drainage pipeline (2) is coated with a filter screen (22).
6. The sponge urban drainage pavement according to claim 1, characterized in that: the upper surface of the pervious concrete layer (5) is also provided with brick bodies (7) side by side, and gaps are formed between the adjacent brick bodies (7).
7. The sponge urban drainage pavement according to claim 6, characterized in that: a plurality of inclined holes (71) are formed in the brick body (7), and drain holes (72) communicated with the inclined holes (71) are formed in the surface of the brick body (7).
8. The sponge urban drainage pavement according to claim 7, characterized in that: each inclined hole (71) is correspondingly communicated with a plurality of drainage holes (72).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022051027.7U CN213740409U (en) | 2020-09-17 | 2020-09-17 | Sponge urban drainage road surface |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022051027.7U CN213740409U (en) | 2020-09-17 | 2020-09-17 | Sponge urban drainage road surface |
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| Publication Number | Publication Date |
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| CN213740409U true CN213740409U (en) | 2021-07-20 |
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| CN202022051027.7U Active CN213740409U (en) | 2020-09-17 | 2020-09-17 | Sponge urban drainage road surface |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114737433A (en) * | 2022-04-02 | 2022-07-12 | 中能建路桥工程有限公司 | Sponge type road pavement structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114737433A (en) * | 2022-04-02 | 2022-07-12 | 中能建路桥工程有限公司 | Sponge type road pavement structure |
| CN114737433B (en) * | 2022-04-02 | 2022-12-13 | 中能建路桥工程有限公司 | Sponge type road paving structure |
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