Sponge facility structure capable of increasing permeable pavement area

Abstract

The utility model discloses a sponge facility structure capable of increasing a permeable pavement area, and belongs to the technical field of sponge city construction. The sponge facility structure is arranged on the permeable pavement ground and sequentially comprises a washed rubble layer, a rainwater gutter, a grating steel plate and a pebble bed from bottom to top, the washed rubble layer extends to the area of the impermeable pavement ground, a water seepage pipe is arranged in the washed rubble layer, and the water seepage pipe is communicated with the interior of the rainwater gutter through a group of pipelines. According to the utility model, based on the arrangement of a multi-layer structure, rainwater can permeate into ground rainwater in an impermeable ground area through the facility, and on the basis of reducing the construction area of a permeable area in the ground, the proportion requirement of a green rainwater infrastructure on the permeable pavement area is met; and through arrangement of a water seepage pipe, the water permeability performance of the washed gravel layer can be guaranteed, and impurities in seepage water can be conveniently cleaned.

Description

Technical Field

[0001] This utility model belongs to the field of sponge city construction technology, specifically relating to a sponge facility structure that can increase the permeable paving area. Background Technology

[0002] A green building rating of two stars requires the use of site space to install green rainwater infrastructure, meeting at least three of the following criteria:

[0003] 1) The combined area of ​​green spaces and water bodies with rainwater regulation and storage functions accounts for 60% of the total green space area;

[0004] 2) Connect and guide no less than 80% of roof rainwater into ground-level ecological facilities;

[0005] 3) Connect and guide no less than 80% of road rainwater into ground ecological facilities;

[0006] 4) The proportion of permeable pavement in hard paved surfaces reaches 50%.

[0007] To meet the required proportion of permeable pavement area, a certain area of ​​permeable pavement needs to be constructed. However, too much permeable pavement can affect the overall flatness and aesthetics of the ground. Utility Model Content

[0008] In view of the above-mentioned problems in the existing technology, the purpose of this utility model is to provide a sponge facility structure that can increase the permeable paving area, thereby increasing the permeable paving area inside the ground layer, thereby reducing the construction area of ​​permeable paving on the ground and improving the overall flatness and aesthetics of the ground.

[0009] This utility model provides the following technical solution: a sponge facility structure that can increase the area of ​​permeable paving. The sponge facility structure is set at the permeable paving ground and includes, from bottom to top, a washed gravel layer, a rainwater ditch, a steel grating plate and a pebble layer. The washed gravel layer extends to the impermeable paving ground area and is equipped with a seepage pipe. The seepage pipe is connected to the inside of the rainwater ditch through a set of pipes.

[0010] Furthermore, a set of seepage holes are provided at the bottom of the rainwater ditch, and each seepage hole is connected to a seepage pipe through a pipe.

[0011] Furthermore, the seepage pipe is a porous plastic blind pipe, which is wrapped with a permeable geotextile.

[0012] Furthermore, the washed gravel layer is wrapped with a permeable geotextile.

[0013] Furthermore, the rainwater ditch and the infiltration pipe are connected to the rainwater inlet, and the infiltration pipe is provided with a pipe plug at the rainwater inlet.

[0014] By adopting the above-mentioned technology, the beneficial effects of this utility model compared with the prior art are as follows:

[0015] In this utility model, the multi-layer structure allows rainwater to infiltrate into the impermeable ground area, reducing the construction area of ​​the impermeable area while meeting the requirement for the proportion of permeable paving area in green rainwater infrastructure. Furthermore, the infiltration pipes ensure the permeability of the washed gravel layer and facilitate the cleaning of impurities in the infiltration water. Attached Figure Description

[0016] Fig. 1 This is a cross-sectional structural diagram of the overall structure of this utility model;

[0017] Fig. 2 This is a schematic diagram of the planar structure of the rainwater inlet of this utility model;

[0018] Fig. 3 This is a schematic diagram of the planar structure of the seepage pipe of this utility model. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the scope of the present utility model.

[0020] Conversely, this utility model encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this utility model as defined in the claims. Furthermore, to provide the public with a better understanding of this utility model, certain specific details are described in detail in the following description. However, those skilled in the art will fully understand this utility model even without these detailed descriptions.

[0021] Please see Figs. 1-3 A sponge facility structure that can increase the area of ​​permeable pavement is installed on the permeable pavement surface. It consists of a washed gravel layer 1, a rainwater ditch 2, a steel grating plate 3, and a pebble layer 4 from bottom to top.

[0022] Specifically, the rainwater ditch 2 is located underground, the grating steel plate 3 is installed on the rainwater ditch 2, and a layer of pebbles is laid on the grating steel plate 3 to form a pebble layer 4. The pebble layer 4 is located on the ground and is flush with the paving layer / road on the ground.

[0023] The bottom of the rainwater ditch 2 has multiple seepage holes with a diameter of 50mm. These seepage holes are arranged at equal intervals along the length of the rainwater ditch 2, with a spacing of 5m between them.

[0024] Specifically, the washed gravel layer 1 extends from the permeable pavement area to the impermeable pavement area. It is a gravel permeable layer, and a permeable pipe 5 is installed inside it below the rainwater ditch 2. The permeable pipe 5 is a De110UPVC plastic porous blind pipe, and is wrapped with a permeable geotextile 6.

[0025] Specifically, the rainwater ditch 2 and the infiltration pipe 5 are normally connected to the rainwater inlet 7. The infiltration pipe 5 is fitted with a pipe plug 8 or a pipe cap on the side of the rainwater inlet. Depending on daily management needs, the pipe plug 8 or pipe cap should be opened every six months or once a year to clear the silt from the pipe to the rainwater inlet. The silt can then be used in the planting area.

[0026] Normal rainwater drainage flows to the roadside storm drain ditch 2. The bottom of storm drain 2 has infiltration holes, and pipes are installed at these holes to connect to the infiltration pipe 5 below the drain. The infiltration pipe 5 is covered with permeable geotextile 6. A gravel permeable layer or a permeable layer is then constructed on the outer side. Rainwater with low sediment content seeps through the infiltration pipe 5 into the washed gravel layer 1, ensuring the outer permeable layer maintains its permeability for a long time.

[0027] The storm drain ditch 2 and the infiltration pipe 5 are normally connected to the storm drain inlet 7. A pipe plug 7 or a pipe cap is installed on the infiltration pipe 5 on the side of the storm drain inlet. Depending on daily management needs, the pipe plug 7 or pipe cap is opened every six months or one year to clear the silt from the pipe to the storm drain inlet. The silt can then be used in planting areas. This prevents the permeable layer in the backfill layer from becoming filled with silt and losing its permeability when there is no infiltration pipe 5. This allows normally impermeable paving to achieve the effect of normally permeable paving, meeting the standard requirement that the proportion of permeable paving area in hard paving should reach 50% and that at least 80% of road rainwater should be connected and guided into the ground ecological facilities.

[0028] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A sponge facility structure capable of increasing the permeable paving area, characterized in that, The sponge facility structure is set at the impermeable paved ground. It consists of a washed gravel layer (1), a rainwater ditch (2), a steel grating plate (3), and a pebble layer (4) from bottom to top. The washed gravel layer (1) extends to the impermeable paved ground area and is equipped with a seepage pipe (5). The seepage pipe (5) is connected to the inside of the rainwater ditch (2) through a set of pipes.

2. The sponge facility structure according to claim 1, which can increase the permeable paving area, is characterized in that, The bottom of the rainwater ditch (2) is provided with a set of seepage holes, and each seepage hole is connected to the seepage pipe (5) through a pipe.

3. A sponge facility structure capable of increasing the permeable paving area according to claim 2, characterized in that, The seepage pipe (5) is a plastic porous blind pipe, which is wrapped with a permeable geotextile (6).

4. A sponge facility structure capable of increasing the permeable paving area according to claim 1, characterized in that, The washed gravel layer (1) is wrapped with a permeable geotextile (6).

5. A sponge facility structure capable of increasing the permeable paving area according to claim 1, characterized in that, The rainwater ditch (2), the infiltration pipe (5) are connected to the rainwater inlet (7), and the infiltration pipe (5) is provided with a pipe plug (8) at the rainwater inlet.

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