Sponge city drainage structure
By incorporating a gravel drainage layer, a spiral diversion channel, and a geotextile layer into the drainage structure of sponge cities, the problem of soil clogging in conventional road drainage systems has been solved, achieving efficient drainage and structural stability, and reducing the risk of urban flooding.
Patent Information
- Application Number
- CN202423000180.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-05
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2034-12-05
AI Technical Summary
In existing technologies, rainwater from the slopes of excavated sections of conventional roads carries soil into the drainage ditches or rainwater pipes, causing blockages in the rainwater pipes, resulting in low drainage efficiency, difficult maintenance, and a high risk of urban flooding under extreme weather conditions.
Design a sponge city drainage structure, including a compacted soil foundation, a gravel drainage layer, drainage pipes, a geotextile layer, and a cover layer. By setting spiral protruding diversion channels, water inlets, limiting blocks, and bolt connection components, combined with the segmented design of the geotextile layer and Velcro adhesive rings, the structure's stability and soil erosion can be enhanced.
It improves drainage efficiency, reduces the risk of urban flooding, enhances structural stability, prevents drainage pipe blockage and soil erosion, and facilitates the disassembly and replacement of geotextile layers.
Smart Images
Figure CN223853475U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to drainage equipment technical field especially relates to a sponge city drainage structure. BACKGROUND
[0002] In the process of sponge city construction, rainwater collection is an important part, the conventional road excavation section, the side slope rainwater will pass through the drainage ditch or rainwater pipe, will bring in part of the soil, causes the rainwater pipe's blockage, and there is low drainage efficiency, maintenance difficult etc. Problem, in the extreme weather conditions such as heavy rain, it is easy to lead to urban waterlogging, therefore, a kind of novel sponge city drainage structure is designed. UTILITY MODEL CONTENT
[0003] The utility model discloses a main purpose is to provide a kind of sponge city drainage structure, to solve the conventional road excavation section in prior art, the side slope rainwater will pass through the drainage ditch or rainwater pipe, will bring in part of the soil, causes the rainwater pipe's blockage Problem.
[0004] To achieve the above object, the utility model provides the following technical scheme:
[0005] A kind of sponge city drainage structure, including soil ramming foundation, it is characterized in that, the upper side of the soil ramming foundation is provided with gravel drainage layer, drainage pipe is equipped in the gravel drainage layer, the geotextile layer is covered outside the drainage pipe, the geotextile layer is segmented and set, the upper side of the drainage pipe is provided with several water inlets, the water inlets are arranged at intervals;
[0006] The upper side of the gravel drainage layer is provided with replacement soil layer, the upper side of the replacement soil layer is provided with covering layer, and the covering layer is connected to the soil ramming foundation by connecting assembly.
[0007] The inner wall of the drainage pipe is provided with several spiral protrusions, and the area between the spiral protrusions forms a spiral flow guide groove.
[0008] As a further limitation of the technical solution, the connecting assembly includes a limiting block and a bolt, the limiting block is fixed to the two side edge positions of the covering layer, the limiting block is several and uniformly arranged, the side surface of the limiting block can contact the inner vertical surface of the soil ramming foundation, the limiting block is threadedly connected with the bolt, and the bolt can be screwed into the soil ramming foundation.
[0009] As a further limitation of the technical solution, the outer peripheral surface of the drainage pipe is fixed with several uniformly arranged magic tape adhesive rings, one side of the geotextile layer is fixed with an adhesive layer matched with the magic tape adhesive ring, for bonding the geotextile layer on the surface of the drainage pipe.
[0010] As a further limitation of the technical solution, the thickness of the replacement soil layer is 500 mm.
[0011] As a further limitation of the technical solution, the drain pipe is a DN150 pipe.
[0012] As a further limitation of the technical solution, the geotextile layer is connected by several segments to form a complete geotextile, which wraps and protects the drain pipe.
[0013] The utility model discloses a gravel drainage layer and drain pipe are set up, cooperate the design of water inlet hole, can effectively collect and discharge rainwater, improve the drainage efficiency, reduce the risk of urban waterlogging;
[0014] By setting geotextile between gravel drainage layer and plain soil rammed foundation and between gravel drainage layer and replacement soil layer, the stability of the structure is enhanced, water and soil loss is prevented, and the drain pipe is also protected from soil erosion;
[0015] The geotextile layer wrapped outside the drain pipe is set in sections, and the design of the magic tape adhesive ring makes the geotextile layer easy to disassemble and replace.
[0016] The connecting assembly design of the limiting block and the bolt realizes the stable connection of the covering layer and the plain soil rammed foundation, and enhances the stability of the overall structure. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 The utility model discloses a kind of structure of a kind of sponge city drainage structure of the structure diagram Figure One ;
[0018] Figure 2 The utility model discloses a kind of structure of a kind of sponge city drainage structure of drain pipe and geotextile layer of the structure diagram
[0019] Figure 3 The utility model discloses a kind of structure of a kind of sponge city drainage structure of the partial structure diagram
[0020] Figure 4 The utility model discloses a kind of structure of a kind of sponge city drainage structure of the side view
[0021] Label explanation: 1, plain soil rammed foundation, 2, second geotextile, 21, first geotextile, 3, gravel drainage layer, 4, geotextile layer, 5, drain pipe, 6, magic tape adhesive ring, 7, spiral protrusion, 8, replacement soil layer, 9, covering layer, 10, limiting block, 11, bolt, 13, water inlet hole. DETAILED DESCRIPTION
[0022] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort belong to the scope of protection of the present application.
[0023] As shown in the Figures 1-4 , the present embodiment provides an embodiment of a sponge city drainage structure, in which, referring to Figure 1 , 2 , a sponge city drainage structure, comprising a plain soil rammed foundation 1, the upper side of the plain soil rammed foundation 1 is provided with a gravel drainage layer 3, a drainage pipe 5 is arranged in the gravel drainage layer 3, the drainage pipe 5 is wrapped with a geotextile layer 4, the geotextile layer 4 is arranged in sections, a plurality of water inlet holes 13 are arranged on the upper side of the drainage pipe 5, and the water inlet holes 13 are arranged at intervals.
[0024] The upper side of the gravel drainage layer 3 is provided with a replacement soil layer 8, the upper side of the replacement soil layer 8 is provided with a cover layer 9, and the cover layer 9 is connected to the plain soil rammed foundation 1 through a connecting assembly.
[0025] A plurality of spiral protrusions 7 are arranged on the inner wall of the drainage pipe 5, the area between the spiral protrusions 7 forms a spiral flow guide groove, through the design of the spiral flow guide groove, when the rain flows, the water flow will generate a rotating force along the spiral flow guide structure, this rotating force can make the water flow form a vortex in the pipeline of the drainage pipe 5, thereby enhancing the scouring effect of the water flow on the inner wall of the pipeline, so as to reduce the adhesion of impurities such as soil.
[0026] The spiral protrusions can be made of wear-resistant materials to ensure that they will not be worn out during long-term use.
[0027] In the present embodiment, a first geotextile 21 is arranged between the gravel drainage layer 3 and the plain soil rammed foundation 1, the first geotextile 21 matches the shape of the plain soil rammed foundation 1, a second geotextile 2 is arranged between the gravel drainage layer 3 and the replacement soil layer 8, water penetrates downward from the cover layer 9, penetrates downward through the replacement soil layer 8, enters the gravel drainage layer 3, and is discharged after entering the drainage pipe 5 from the water inlet hole 13.
[0028] The connecting assembly comprises a limiting block 10 and a bolt 11, the limiting block 10 is fixed to the both side edge positions of the cover layer 9, the limiting block 10 is a plurality of and is uniformly arranged, the side surface of the limiting block 10 can contact the inner vertical surface of the plain soil rammed foundation 1, the limiting block 10 is threadedly connected with the bolt 11, and the bolt 11 can be screwed into the plain soil rammed foundation 1.
[0029] In the embodiment, the covering layer 9 and the rammed earth foundation 1 are connected by the bolts 11, and the covering layer 9 is further fixed.
[0030] The outer circumferential surface of the drain pipe 5 is fixed with a plurality of magic tape adhesive rings 6 arranged uniformly, and one side of the geotextile layer 4 is fixed with an adhesive layer matched with the magic tape adhesive rings 6, for adhering the geotextile layer 4 to the surface of the drain pipe 5.
[0031] In the embodiment, the geotextile layer 4 is adhered by the magic tape adhesive rings 6, which facilitates the disassembly of the geotextile layer 4, and when the magic tape adhesive rings 6 are damaged, the damaged part can be disassembled and replaced.
[0032] The thickness of the replacement soil layer 8 is 500 mm, so as to provide sufficient water permeation space.
[0033] The drain pipe 5 is a DN150 pipe.
[0034] The geotextile layer 4 is formed by connecting a plurality of segments to form a complete geotextile, which wraps and protects the drain pipe 5.
[0035] During drainage, water penetrates downward from the covering layer 9, continues to penetrate downward through the replacement soil layer 8, enters the gravel drainage layer 3, and is discharged after entering the drain pipe 5 from the water inlet hole 13.
[0036] The specific embodiments of the utility model are described in detail above, but it is only as an example, and the utility model is not limited to the specific embodiments described above. For those skilled in the art, any equivalent modification or replacement to the utility model is also within the scope of the utility model, therefore, equivalent transformation, modification, improvement, etc. made without departing from the spirit and principle range of the utility model should be covered in the scope of the utility model.
Claims
1. A sponge city drainage structure comprising a soil rammed foundation (1), characterized in that, The upper side of the plain soil rammed foundation (1) is provided with a gravel drainage layer (3), the gravel drainage layer (3) is provided with a drainage pipe (5), the drainage pipe (5) is covered with a geotextile layer (4), the geotextile layer (4) is arranged in sections, the upper side of the drainage pipe (5) is provided with a plurality of water inlet holes (13), and the water inlet holes (13) are arranged at intervals. The upper side of the gravel drainage layer (3) is provided with a replacement soil layer (8), the upper side of the replacement soil layer (8) is provided with a cover layer (9), and the cover layer (9) is connected with the plain soil rammed foundation (1) through a connecting assembly; The inner wall of the drainage pipe (5) is provided with a plurality of spiral protrusions (7), and the areas between the spiral protrusions (7) form spiral flow guide grooves; The connecting assembly comprises limiting blocks (10) and bolts (11), the limiting blocks (10) are fixed at both side edge positions of the cover layer (9), the limiting blocks (10) are a plurality of and uniformly arranged, the side surface of the limiting block (10) can contact the inner vertical surface of the plain soil rammed foundation (1), the limiting block (10) is threadedly connected with the bolt (11), and the bolt (11) can be screwed into the plain soil rammed foundation (1). 2.The sponge city drainage structure according to claim 1, characterized in that, The outer circumferential surface of the drainage pipe (5) is fixed with a plurality of uniformly arranged magic tape adhesive rings (6), one side of the geotextile layer (4) is fixed with an adhesive layer matched with the magic tape adhesive ring (6), and the geotextile layer (4) is adhered to the surface of the drainage pipe (5).
3. The sponge city drainage structure according to claim 2, characterized in that, The thickness of the replacement soil layer (8) is 500mm.
4. The sponge city drainage structure according to claim 3, characterized in that, The drainage pipe (5) is a DN150 pipe.
5. The sponge city drainage structure according to claim 4, characterized in that, The geotextile layer (4) is formed by connecting a plurality of sections to form a complete geotextile, and the drainage pipe (5) is wrapped and protected.