Water backflow prevention device and slope retaining wall drainage pipe structure
By designing a waterproof reversal device at the exit of the drainage pipeline of the wall, the combination of steel wire ripple rubber pipes and waterproof foam plates is used to solve the problem of water pouring irrigation, improve the safety and reliability of the drainage system, and ensure the slope of the ground. Stability and security.
Patent Information
- Application Number
- CN202420536993.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-19
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-03-19
AI Technical Summary
Under extreme weather conditions, water may flow back into the retaining wall drain pipe, affecting the drainage effect and causing damage to the retaining wall structure, affecting the stability and safety of the slope structure.
A waterproof inverting device is designed, including the steel wire ripple ripple rubber tube connected to the exit of the drainage pipe of the slope gear. When the waterproof foam board rises, it floats and blocks the exit of the steel wire ripple rubber tube to prevent water pouring.
Effectively prevent water pouring water, improve the safety and reliability of the drainage system, and ensure the stability and safety of the slope to block the soil wall.
Smart Images
Figure CN222413398U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of civil engineering, and specifically relates to a waterproof backflow device and a slope retaining wall drainage pipe structure. Background Art
[0002] The roadbed is affected by natural factors for a long time. Under the influence of unfavorable hydrological conditions, the physical and mechanical properties of rock and soil decay, resulting in roadbed diseases. In order to ensure that the roadbed has sufficient strength and stability, roadbed protection, support and reinforcement are indispensable engineering measures.
[0003] Retaining walls are wall structures that support roadbed fill or hillside soil and prevent fill or soil from deforming and becoming unstable. In highway fill slopes, retaining walls are often required to prevent roadbed slope sliding or slope soil from becoming unstable, while shrinking the slope foot, reducing land occupation and demolition.
[0004] Whether the drainage treatment of the retaining wall is proper directly affects the safety and use effect of the retaining wall. The drainage pipe of the retaining wall is an important component, which is used to remove the accumulated water behind the retaining wall and maintain the stability of the retaining wall.
[0005] However, under extreme weather conditions, such as heavy rain, floods, etc., or when the groundwater level rises, water may flow back into the retaining wall drainage pipe and into the backfill area of the retaining wall, which will not only affect the drainage effect, but may also damage the retaining wall structure and affect the stability and safety of the slope structure. Utility Model Content
[0006] The utility model aims to provide a waterproof backflow device and a slope retaining wall drainage pipe structure to solve the above problems existing in the prior art.
[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0008] On the one hand, the utility model provides a waterproof backflow device, including a steel wire corrugated rubber tube connected to the outlet of the drainage pipe of the slope retaining wall, the outlet of the steel wire corrugated rubber tube is vertically arranged downward, and a funnel protective cover is connected to the outlet of the steel wire corrugated rubber tube; a first steel wire mesh is installed at the outlet of the steel wire corrugated rubber tube, and a waterproof foam board located in the funnel protective cover is connected below the first steel wire mesh, so that when the water level rises, the waterproof foam board floats with the water level and blocks the outlet of the steel wire corrugated rubber tube at the lower end of the first steel wire mesh, and in a natural state, a water discharge gap is arranged between the edge of the waterproof foam board and the inner wall of the funnel protective cover.
[0009] As a preferred technical solution in the utility model, the funnel protective cover is a circular funnel-shaped structure whose inner diameter gradually increases from top to bottom, and the waterproof foam board is a disc-shaped structure whose center at the upper end is connected to the center of the first steel wire mesh through a spring, and the diameter of the waterproof foam board is not less than the diameter of the first steel wire mesh.
[0010] As a preferred technical solution in the present invention, the edge thickness of the waterproof foam board is 3-4 cm, the middle part of the waterproof foam board is convex upward, and the thickness of the middle part of the waterproof foam board is 5 cm.
[0011] As a preferred technical solution in the present utility model, the distance between the first steel wire mesh and the outlet end of the steel wire corrugated rubber tube is 5 cm.
[0012] As a preferred technical solution in the utility model, the funnel protective cover is made of PVC material.
[0013] As a preferred technical solution in the utility model, a second steel wire mesh is installed at the inlet of the steel wire corrugated rubber tube.
[0014] On the other hand, the utility model also provides a slope retaining wall drainage pipe structure, including the waterproof backflow device described in any of the above items and a PVC drainage pipe installed in the slope retaining wall, the height of the PVC drainage pipe gradually decreases from its inlet to its outlet, and the outlet of the PVC drainage pipe is connected to the inlet of the steel wire corrugated rubber pipe.
[0015] As a preferred technical solution in the utility model, the outlet end of the PVC drainage pipe extends 5-10 cm from one end of the slope retaining wall.
[0016] As a preferred technical solution in the utility model, a third steel wire mesh is installed at the inlet end of the PVC drainage pipe, and a side of the third steel wire mesh facing the outlet direction of the PVC drainage pipe is wrapped with an anti-filter geotextile.
[0017] As a preferred technical solution in the utility model, at least two drainage pipe groups are arranged on the slope retaining wall from top to bottom, each drainage pipe group includes a plurality of PVC drainage pipes arranged at intervals on a horizontal plane, and the PVC drainage pipes in any two adjacent drainage pipe groups are arranged in a plum blossom shape.
[0018] Beneficial effect: The utility model is provided with a waterproof foam plate in the funnel protective cover, and a drainage gap is provided between the edge of the waterproof foam plate and the inner wall of the funnel protective cover, which does not affect normal drainage. When the external water level rises, the waterproof foam plate can float with the water level and block the outlet of the steel wire corrugated rubber tube at the lower end of the first steel wire mesh, thereby making the steel wire corrugated rubber tube form a temporary closed state, which can effectively prevent further backflow of water. When the external water level drops, the waterproof foam plate can drop under the action of gravity, or drop under the impact of water when cooperating with the slope retaining wall drainage pipe to drain water, so that the waterproof foam plate is separated from the outlet of the steel wire corrugated rubber tube, which does not affect the overall drainage.
[0019] The utility model can reduce the problem of backflow of the retaining wall drainage pipe caused by rising water level to the greatest extent, thereby improving the safety and reliability of the drainage system and ensuring the stability and safety of the slope retaining wall. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a structural schematic diagram of the waterproof backflow device in the utility model;
[0021] Figure 2 It is a cross-sectional view of the waterproof foam board in the utility model;
[0022] Figure 3 It is a schematic diagram of the drainage pipe structure of the slope retaining wall in the utility model.
[0023] In the figure: 1- steel wire corrugated rubber tube; 2- funnel protection cover; 3- first steel wire mesh; 4- waterproof foam board; 5- spring; 6- second steel wire mesh; 7- slope retaining wall; 8- PVC drainage pipe. DETAILED DESCRIPTION
[0024] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the utility model will be briefly introduced below in combination with the drawings and the description of the embodiments or the prior art. Obviously, the following description of the structure of the drawings is only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. It should be noted that the description of these embodiments is used to help understand the utility model, but does not constitute a limitation of the utility model.
[0025] Example:
[0026] like Figure 1 and Figure 2As shown, this embodiment provides a waterproof backflow device, including a steel wire corrugated rubber tube 1 connected to the outlet of the slope retaining wall drainage pipe, the outlet of the steel wire corrugated rubber tube 1 is arranged vertically downward, and a funnel protective cover 2 is connected to the outlet of the steel wire corrugated rubber tube 1, and the funnel protective cover 2 is also in a vertical state in a natural state, which is convenient for the floating and descending of the waterproof foam board 4 inside it; a first steel wire mesh 3 is installed at the outlet of the steel wire corrugated rubber tube 1, which can prevent debris from entering the steel wire corrugated rubber tube 1 and the slope retaining wall drainage pipe when water flows back, and a waterproof foam board 4 located in the funnel protective cover 2 is connected below the first steel wire mesh 3. The waterproof foam board 4 has buoyancy in water, so that when the water level rises, the waterproof foam board 4 floats with the water level and blocks the bottom of the first steel wire mesh 3. The outlet of the steel wire corrugated rubber tube 1 at the end, and in the natural state, a water discharge gap is set between the edge of the waterproof foam board 4 and the inner wall of the funnel protective cover 2, which does not affect normal drainage. When the external water level rises and the waterproof foam board 4 floats, it is limited by the funnel protective cover 2 to ensure its stability, so that it can be accurately sealed at the outlet of the steel wire corrugated rubber tube 1 at the lower end of the first steel wire mesh 3, thereby making the steel wire corrugated rubber tube 1 form a temporary closed state, which can effectively prevent water from further backflow. When the external water level drops, the waterproof foam board 4 can drop under the action of gravity, or drop under the impact of water when cooperating with the slope retaining wall drainage pipe to drain water, so that the waterproof foam board 4 is separated from the outlet of the steel wire corrugated rubber tube 1, which does not affect the overall drainage.
[0027] The utility model is provided with a waterproof foam plate 4 in the funnel protective cover 2, and a water discharge gap is provided between the edge of the waterproof foam plate 4 and the inner wall of the funnel protective cover 2, which does not affect normal drainage. When the external water level rises, the waterproof foam plate 4 can float with the water level and block the outlet of the steel wire corrugated rubber tube 1 at the lower end of the first steel wire mesh 3, thereby making the steel wire corrugated rubber tube 1 form a temporary closed state, which can effectively prevent further backflow of water. When the external water level drops, the waterproof foam plate 4 can drop under the action of gravity, or drop under the impact of water when cooperating with the slope retaining wall drainage pipe to drain water, so that the waterproof foam plate 4 is separated from the outlet of the steel wire corrugated rubber tube 1, which does not affect the overall drainage.
[0028] The utility model can reduce the problem of backflow of the retaining wall drainage pipe caused by rising water level to the greatest extent, thereby improving the safety and reliability of the drainage system and ensuring the stability and safety of the slope retaining wall.
[0029] As a preferred implementation scheme in this embodiment, it needs to be further explained that the funnel protective cover 2 is a circular funnel-shaped structure with an inner diameter gradually increasing from top to bottom. Preferably, the inner diameter of the upper end of the funnel protective cover 2 is equal to the inner diameter of the steel wire corrugated rubber tube 1, or the upper end of the funnel protective cover 2 is sleeved on the outside of the outlet of the steel wire corrugated rubber tube 1, which does not affect the waterproof foam board 4 floating into the steel wire corrugated rubber tube 1. The waterproof foam board 4 is a disc-shaped structure with the center of the upper end connected to the center of the first steel wire mesh 3 through a spring 5. The structure is regular and the design is simple, which is convenient for lifting and lowering in the funnel protective cover 2. The diameter of the waterproof foam board 4 is not less than the diameter of the first steel wire mesh 3. Preferably, the diameter of the waterproof foam board 4 is equal to the diameter of the first steel wire mesh 3. In this way, when the waterproof foam board 4 is in place, the outlet of the steel wire corrugated rubber tube 1 at the lower end of the first steel wire mesh 3 can be just blocked.
[0030] As a preferred implementation scheme in this embodiment, it needs to be further explained that the edge thickness of the waterproof foam board 4 is 3-4 cm, the middle part of the waterproof foam board 4 bulges upward, and the thickness of the middle part of the waterproof foam board 4 is 5 cm, which ensures the structural stability and can also ensure that there will be no water accumulation on the upper end surface of the waterproof foam board 4 during drainage.
[0031] As a preferred implementation scheme in this embodiment, it needs to be further explained that the distance between the first steel wire mesh 3 and the outlet end of the steel wire corrugated rubber tube 1 is 5 cm, so that the waterproof foam board 4 can be embedded when subjected to the buoyancy of water to form a blockage.
[0032] As a preferred implementation scheme in this embodiment, it needs to be further explained that the funnel protective cover 2 is made of PVC material, which has a stable structure and a long service life.
[0033] As a preferred implementation scheme in this embodiment, it needs to be further explained that a second steel wire mesh 6 is installed at the inlet of the steel wire corrugated rubber tube 1 to prevent debris from entering the steel wire corrugated rubber tube 1 during normal drainage.
[0034] Embodiment 2:
[0035] like Figure 3 As shown, the utility model provides a slope retaining wall drainage pipe structure, including the waterproof backflow device described in any one of the implementation modes in Example 1 and a PVC drainage pipe 8 installed in the slope retaining wall 7. The height of the PVC drainage pipe 8 gradually decreases from its inlet to the outlet, and preferably retains a 1% slope to facilitate the smooth discharge of water inside the drainage pipe, and the outlet of the PVC drainage pipe 8 is connected to the inlet of the steel wire corrugated rubber tube 1, forming a waterproof backflow structure of the slope retaining wall drainage pipe, ensuring the overall drainage effect and solving the problem of backflow.
[0036] As a preferred implementation scheme in this embodiment, it needs to be further explained that the outlet end of the PVC drainage pipe 8 extends 5-10 cm from one end of the slope retaining wall 7, leaving a certain space for the bending of the steel wire corrugated rubber tube 1, thereby ensuring that the lower end of the steel wire corrugated rubber tube 1 is in a natural vertical downward state.
[0037] As a preferred implementation scheme in this embodiment, it needs to be further explained that a third steel wire mesh is installed at the inlet end of the PVC drain pipe 8, and the side of the third steel wire mesh facing the outlet direction of the PVC drain pipe 8 is wrapped with an anti-filter geotextile. The pore size of the third steel wire mesh is smaller than the particle size of the gravel, and is used to filter larger fill or gravel particles behind the retaining wall to prevent blockage of the water inlet, while forming a protective effect on the anti-filter geotextile.
[0038] As a preferred implementation scheme in this embodiment, it needs to be further explained that at least two drainage pipe groups are arranged on the slope retaining wall 7 from top to bottom, and each drainage pipe group includes a plurality of PVC drainage pipes 8 arranged at intervals on the horizontal plane, with a horizontal spacing of about 300 cm and a longitudinal spacing of about 200-300 cm, and the PVC drainage pipes 8 in any two adjacent drainage pipe groups are arranged in a plum blossom shape in an alternating manner to ensure the overall drainage effect.
[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A waterproof backflow device for a slope retaining wall drainage pipe, characterized in that: The invention comprises a steel wire corrugated rubber tube (1) connected to the outlet of the drainage pipe of the slope retaining wall, the outlet of the steel wire corrugated rubber tube (1) is arranged vertically downward, and the outlet of the steel wire corrugated rubber tube (1) is connected to a funnel protective cover (2); a first steel wire mesh (3) is installed at the outlet of the steel wire corrugated rubber tube (1), and a waterproof foam plate (4) located in the funnel protective cover (2) is connected below the first steel wire mesh (3), so that when the water level rises, the waterproof foam plate (4) floats up with the water level and blocks the outlet of the steel wire corrugated rubber tube (1) at the lower end of the first steel wire mesh (3), and in a natural state, a water discharge gap is arranged between the edge of the waterproof foam plate (4) and the inner wall of the funnel protective cover (2).
2. The anti-backflow device according to claim 1, characterized in that: The funnel protection cover (2) is a circular funnel-shaped structure whose inner diameter gradually increases from top to bottom, and the waterproof foam plate (4) is a disc-shaped structure whose upper center is connected to the center of the first steel wire mesh (3) through a spring (5), and the diameter of the waterproof foam plate (4) is not less than the diameter of the first steel wire mesh (3).
3. The anti-backflow device according to claim 1 or 2, characterized in that: The edge thickness of the waterproof foam board (4) is 3-4 cm, the middle part of the waterproof foam board (4) is convex upward, and the thickness of the middle part of the waterproof foam board (4) is 5 cm.
4. The anti-backflow device according to claim 1 or 2, characterized in that: The distance between the first steel wire mesh (3) and the outlet end of the steel wire corrugated rubber tube (1) is 5 cm.
5. The anti-backflow device according to claim 1 or 2, characterized in that: The funnel protective cover (2) is made of PVC material.
6. The anti-backflow device according to claim 1 or 2, characterized in that: A second steel wire mesh (6) is installed at the inlet of the steel wire corrugated rubber tube (1).
7. A slope retaining wall drainage pipe structure, characterized in that: It comprises a waterproof backflow device as described in any one of claims 1 to 6 and a PVC drainage pipe (8) installed in a slope retaining wall (7), wherein the height of the PVC drainage pipe (8) gradually decreases from its inlet to its outlet, and the outlet of the PVC drainage pipe (8) is connected to the inlet of a steel wire corrugated rubber tube (1).
8. The slope retaining wall drainage pipe structure according to claim 7, characterized in that: The outlet end of the PVC drainage pipe (8) extends 5-10 cm from one end of the slope retaining wall (7).
9. The slope retaining wall drainage pipe structure according to claim 7, characterized in that: A third steel wire mesh is installed at the inlet end of the PVC drainage pipe (8), and a side of the third steel wire mesh facing the outlet direction of the PVC drainage pipe (8) is wrapped with an anti-filter geotextile.
10. The slope retaining wall drainage pipe structure according to any one of claims 7 to 9, characterized in that: At least two drainage pipe groups are arranged on the slope retaining wall (7) from top to bottom, each drainage pipe group comprises a plurality of PVC drainage pipes (8) arranged at intervals on a horizontal plane, and the PVC drainage pipes (8) in any two adjacent drainage pipe groups are arranged in a staggered manner in a plum blossom shape.