Ground sponge city rainwater collecting structure

Abstract

The utility model relates to the field of urban sponge water storage structures, in particular to a ground sponge urban rainwater collecting structure. According to the ground sponge city rainwater collection structure, the seepage-proofing water storage structure base layer, the rainwater collection layer, the transition layer and the decoration layer are arranged from bottom to top, the effects of decoration, water permeation, water storage and supporting are achieved at the same time, and therefore the functions of the ground sponge city rainwater collection structure are diversified; the problem that in the prior art, an urban sponge water storage structure is single in function is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of city sponge water storage structure, especially to a ground sponge city rainwater collection structure. BACKGROUND

[0002] The city sponge water storage structure is a rainwater collection system designed based on the concept of sponge city. Its purpose is to increase the water permeability of the city ground, convert rainwater into usable resources, and reduce the pressure on the city drainage system.

[0003] The existing city sponge water storage structure usually includes water-permeable pavement, sunken green land, rainwater garden, water storage tank and other components. The water-permeable pavement uses materials with water permeability, such as porous concrete and water-permeable bricks, to allow rainwater to penetrate into the ground and reduce surface water. The sunken green land lowers the green land elevation so that the green land is lower than the road, thereby guiding rainwater into the green land. The rainwater garden is a small water conservancy facility that purifies rainwater and allows it to penetrate into the ground by planting plants and setting up a sandstone layer. The water storage tank is used to collect and store rainwater for use when needed.

[0004] However, the above three existing structures cannot simultaneously have the functions of decoration, water permeability, water storage and support, i.e., the existing city sponge water storage structure has the problem of single function. SUMMARY

[0005] The purpose of the present invention is to solve the problems existing in the prior art. The utility model provides a ground sponge city rainwater collection structure.

[0006] In order to solve the problems existing in the prior art, the utility model adopts the following technical solutions:

[0007] A ground sponge city rainwater collection structure, comprising a water storage structure base layer, a rainwater collection layer, a transition layer and a decorative layer arranged from bottom to top.

[0008] As an improvement of the technical scheme of the ground sponge city rainwater collection structure of the utility model, the water storage structure base layer comprises a composite geomembrane.

[0009] As an improvement of the technical scheme of the ground sponge city rainwater collection structure of the utility model, the rainwater collection layer is composed of a plurality of rainwater collection layer modules made of recycled PP polypropylene material.

[0010] As an improvement of the technical scheme of the ground sponge city rainwater collection structure of the utility model, the rainwater collection layer is paved with a 50mm water-permeable concrete layer as a transition layer between the ground rainwater permeation collection surface and the decorative surface.

[0011] As an improvement of the technical scheme of the ground sponge city rainwater collecting structure of the utility model, the transition layer comprises a double-layer dense-line steel filament mesh water-permeable concrete water-permeable layer.

[0012] As an improvement of the technical scheme of the ground sponge city rainwater collecting structure of the utility model, the upper surface of the double-layer dense-line steel filament mesh water-permeable concrete water-permeable layer is paved with a coarse sand layer, and the thickness of the coarse sand layer is 40-60mm.

[0013] As an improvement of the technical scheme of the ground sponge city rainwater collecting structure of the utility model, the ground decoration paving adopts 60mm-thick water-permeable bricks.

[0014] As an improvement of the technical scheme of the ground sponge city rainwater collecting structure of the utility model, the water permeability of the water-permeable brick is not less than 2.5mm / s.

[0015] As an improvement of the technical scheme of the ground sponge city rainwater collecting structure of the utility model, the rainwater collecting layer collecting pipeline guides the filtered rainwater to the rainwater collecting tank to complete the overall sponge water storage, and the collecting pipeline is a DN50-PVC collecting pipeline.

[0016] As an improvement of the technical scheme of the ground sponge city rainwater collecting structure of the utility model, the anti-seepage water storage structure base layer comprises a compacted layer, the compacted layer is arranged on the upper portion of the anti-seepage water storage structure base layer, and the upper surface of the compacted layer is paved with an anti-seepage film.

[0017] The utility model has the advantages of:

[0018] In the utility model, the anti-seepage water storage structure base layer, the rainwater collecting layer, the transition layer and the decoration layer are arranged from bottom to top, the effects of decoration, water permeability, water storage and support are realized at the same time, the function of the ground sponge city rainwater collecting structure of the utility model is diversified, and the problem of single function of the prior art city sponge water storage structure is solved. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a sectional view structural schematic drawing of the utility model.

[0020] Mark explanation: 1-anti-seepage water storage structure base layer, 2-rainwater collecting layer, 3-transition layer, 4-decoration layer, 5-collecting pipeline, 6-compacted layer, 7-anti-seepage film, 8-coarse sand layer. DETAILED DESCRIPTION

[0021] In order to make the purpose of the invention, technical solutions and beneficial effects of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in combination with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments.

[0022] like Figure 1 As shown, a ground sponge city rainwater collection structure includes an anti-seepage water storage structure base layer 1, a rainwater collection layer 2, a transition layer 3 and a decorative layer 4 arranged from bottom to top.

[0023] This utility model's ground-level sponge urban rainwater collection structure is used for urban sponge water storage. In this utility model, the anti-seepage water storage structure's base layer 1 primarily stores and regulates rainwater while preventing it from seeping into the ground. The rainwater collection layer 2 collects rainwater for easy utilization. A transition layer 3 separates the decorative layer 4 from the rainwater collection layer 2, preventing contact between them and providing support. The decorative layer 4 also decorates the ground, ensuring the landscape of the urban landscape.

[0024] In the present invention, by arranging the anti-seepage water storage structure base layer 1, the rainwater collection layer 2, the transition layer 3 and the decorative layer 4 from bottom to top, the effects of decoration, water permeability, water storage and support are achieved at the same time, making the functions of the ground sponge urban rainwater collection structure of the present invention diversified, and solving the problem of the relatively single function of the urban sponge water storage structure in the existing technology.

[0025] As some embodiments of the present invention, the anti-seepage water storage structure base layer 1 includes a composite geomembrane.

[0026] In detail, the anti-seepage water storage structure base layer 1 includes a composite geomembrane, which is mainly used for anti-seepage and isolation. Among them, the composite geomembrane is composed of multiple layers of materials, has high physical and mechanical properties such as tensile strength, tear strength and bursting strength, and can effectively prevent water penetration. At the same time, the material has excellent durability and aging resistance, and can maintain its performance and use effect for a long time. Preferably, the composite geomembrane can adopt polymer materials such as high-density polyethylene (HDPE) or linear low-density polyethylene (LLDPE). These materials have good chemical stability and aging resistance, and can ensure long-term use effect.

[0027] As some embodiments of the present invention, the anti-seepage water storage structure base layer 1 includes a compaction layer 6, which is placed on the upper part of the anti-seepage water storage structure base layer 1; an anti-seepage membrane 7 is laid on the compaction layer 6, and preferably, the anti-seepage membrane 7 is a 3 mm thick anti-seepage membrane 7.

[0028] Preferably, the compacted layer 6 is a subgrade compacted layer 6, and the heavy compaction degree of the subgrade compacted layer 6 is greater than or equal to 90%.

[0029] As some embodiments of the present application, the rainwater collecting layer 2 is a plurality of rainwater collecting layer 2 modules made of recycled PP polypropylene material.

[0030] In detail, the recycled PP polypropylene material has excellent impact resistance, cold resistance and heat resistance, and its high fluidity and toughness make it easy to process and manufacture various products. Based on the characteristics of the recycled PP polypropylene material, the application range of this material is very wide, including injection molding, extrusion, wire drawing, etc., and can be used to manufacture electrical shell, chemical barrel, daily necessities, sheet, packing belt and plastic modification series products. In the present application, the rainwater collecting layer 2 is used to collect and / or recycle rainwater, based on the characteristics of the recycled PP polypropylene material, the rainwater collecting layer 2 can better realize the effect of collecting and / or recycling rainwater, and in the present application, the rainwater collecting layer 2 is a collecting layer composed of a plurality of rainwater collecting layer 2 modules, which can facilitate the separation and storage of rainwater in different rainwater collecting layer 2 modules, and can form rainwater collecting layer 2 modules during factory production, facilitating transportation and on-site installation.

[0031] As some embodiments of the present application, the rainwater collecting layer 2 is paved with a 50mm thick permeable concrete layer as a transition layer 3 between the ground rainwater infiltration collecting surface and the decorative surface. The transition layer 3 is a transition layer 3 between the rainwater collecting layer 2 and the decorative layer 4, which separates the decorative layer 4 and the rainwater collecting layer 2, avoids the mutual contact of the decorative layer 4 and the rainwater collecting layer 2, and provides support for the decorative layer 4. Preferably, the transition layer 3 is a 50mm thick permeable concrete layer.

[0032] Further, the transition layer 3 includes a double-layer dense steel filament mesh permeable concrete water permeation layer. Further, a coarse sand layer 8 is laid on the upper surface of the double-layer dense steel filament mesh permeable concrete water permeation layer, and the thickness of the coarse sand layer 8 is 40-60mm.

[0033] As some embodiments of the present application, the ground decoration is paved with 60mm thick permeable bricks, and the permeable rate of the permeable bricks is preferably not less than 2.5mm / s, which not only realizes the effect of decoration, but also guarantees the effect of water permeation.

[0034] As some embodiments of the present application, the rainwater collecting layer 2 collects the filtered rainwater into the rainwater collecting box through the collecting pipeline 5, and completes the overall sponge water storage. The collecting pipeline 5 is preferably a DN50-PVC collecting pipeline 5. The DN50-PVC pipeline has the advantages of light weight, corrosion resistance, not easy to scale, easy to install, low cost, etc.

[0035] Based on the embodiments of the utility model, all other embodiments obtained by the ordinary skilled in the art without making creative labor belong to the range of the utility model protection.

Claims

1. A ground sponge city rainwater collection structure, characterized in that, It comprises, from bottom to top, an anti-seepage water storage structure base layer, a rainwater collection layer, a transition layer and a decorative layer; The anti-seepage water storage structure base layer comprises a composite geomembrane; The rainwater collection layer is composed of a plurality of rainwater collection layer modules made of recycled PP polypropylene material; and the decorative layer is a decorative layer decorated and paved with 60mm-thick water-permeable bricks on the ground. The transition layer is arranged between the rainwater collection layer and the decorative layer, and is a transition layer of a 50mm-thick water-permeable concrete layer laid on the surface of the rainwater collection layer.

2. The ground sponge city rainwater collection structure according to claim 1, characterized in that, The transition layer comprises a double-layer dense steel filament mesh water-permeable concrete water-permeable layer.

3. The ground sponge city rainwater collection structure according to claim 2, characterized in that, A coarse sand layer is laid on the upper surface of the double-layer dense steel filament mesh water-permeable concrete water-permeable layer, and the thickness of the coarse sand layer is 40-60mm.

4. The ground sponge city rainwater collection structure according to claim 1, characterized in that, The water permeability of the water-permeable bricks is not less than 2.5mm / s.

5. The ground sponge city rainwater collection structure according to claim 1, characterized in that, The rainwater collection layer collection pipeline guides the filtered rainwater to a rainwater collection tank to complete overall sponge water storage, and the collection pipeline is a DN50-PVC collection pipeline.

6. The ground sponge city rainwater collection structure according to claim 1, characterized in that, The anti-seepage water storage structure base layer comprises a compacted layer arranged on the upper portion of the anti-seepage water storage structure base layer, and a seepage-proof membrane is laid on the upper surface of the compacted layer.

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