Retaining wall with counterforts

Abstract

The application belongs to the technical field of retaining walls and provides a counter-filtered drainage pipe for a retaining wall, which comprises a pipe body that is obliquely arranged at the bottom of the retaining wall, the low end of the pipe body is outwardly convex and faces the front side of the retaining wall, the outer part of the low end of the pipe body is provided with an annular protrusion in the radial direction, the high end of the pipe body faces the rear side of the retaining wall and extends outward to be buried in the counter-filtered layer, the buried section of the pipe body is provided with a water-permeable hole, and the outer part of the pipe body is wrapped with a water-permeable layer through a clamp corresponding to the water-permeable hole, the clamp is provided with a pair of clamps to clamp the two ends of the water-permeable layer and the pipe body, respectively, the two clamp plates of the clamp are oppositely arranged on the outer part of the pipe body in the left-right direction, and a side support structure and a vertical support structure are arranged between the two clamps. The counter-filtered pipe structure can effectively resist the pressure and transverse displacement stress caused by the displacement of the counter-filtered layer due to the subsidence of the backfill soil body, has a strong supporting effect, is good in stability, is not easy to be damaged, and effectively ensures the normal discharge of the water contained in the soil body behind the retaining wall.

Description

Technical Field

[0001] This application relates to the field of retaining wall technology, and in particular to a buttress-type retaining wall reverse filter drainage pipe. Background Technology

[0002] A buttress retaining wall refers to a retaining wall formed by adding buttresses at regular intervals along the vertical arm of a cantilever retaining wall, connecting the vertical arm to the heel plate. It is generally a reinforced concrete structure. To remove moisture from the soil behind the retaining wall and thus reduce the horizontal thrust exerted by the soil on the retaining wall, drainage pipes are installed in the retaining wall during construction.

[0003] Currently, to prevent soil erosion, a filter layer is usually installed behind the retaining wall, along with a drainage pipe with a filter function. In actual use, the drainage pipe needs to protrude a section behind the retaining wall as a filter section, which is covered by the filter layer. After completion, due to rainwater, the backfill soil is prone to settlement, and the filter layer structure may also shift, causing the drainage pipe to be subjected to stress in different directions. If the drainage pipe does not have sufficient resistance, it is easy to break and fail to drain properly.

[0004] Therefore, there is a need to provide an improved technical solution that addresses the shortcomings of the existing technology. Utility Model Content

[0005] The purpose of this application is to provide a buttress-type retaining wall reverse filter drainage pipe to solve or alleviate the problem that the currently used reverse filter pipe is prone to breakage due to the settlement of backfill soil and the displacement of the reverse filter layer.

[0006] To achieve the above objectives, this application provides the following technical solution: This application provides a buttress-type retaining wall reverse filter drainage pipe, comprising: a pipe body obliquely installed at the bottom of the retaining wall, the lower end of the pipe body facing the front side of the retaining wall and protruding outward, an annular protrusion radially provided on the outer side of the lower end of the pipe body, and the upper end of the pipe body facing the rear side of the retaining wall and extending outward to be buried by a reverse filter layer; the buried section of the pipe body is provided with permeable holes, and a permeable layer is fixedly wrapped around the outside of the pipe body by clamps corresponding to the permeable holes; a pair of clamps are provided to respectively clamp the two ends of the permeable layer to the pipe body, the two clamp plates of the clamps are clamped to the outside of the pipe body in the left and right direction, and a side support structure and a vertical support structure are provided between the two clamps, the side support structure is provided above the pipe body to resist the lateral stress on the pipe body, and the vertical support structure is provided below the pipe body to resist the pressure on the pipe body.

[0007] Preferably, the clamp opening size is smaller than the diameter of the pipe body, so that a connection gap is reserved at the connection point of the two clamp plates of the clamp.

[0008] Preferably, the side support structure includes: a connecting column and a side support arm; The connecting post is located directly above the pipe body, so that both ends of the connecting post extend into the connection interval of the two clamps respectively, and are fixed by bolts.

[0009] Preferably, the side support arm is composed of a V-shaped rod and a top support tube, with the middle section of the V-shaped rod horizontally inserted into the middle of the connecting column; Both ends of the V-shaped rod are threaded with top support tubes, which can be rotated to adjust the length of both ends of the V-shaped rod.

[0010] Preferably, a pressure plate is connected to the end of the top support tube; A connecting sleeve is hinged to one side of the pressure plate, and the connecting sleeve is fitted onto the outside of the end of the top support tube.

[0011] Preferably, the vertical support structure includes a main arm and a secondary arm, one end of the main arm being rotatably disposed within the connection interval of the clamp adjacent to the retaining wall, and the swing end of the main arm being supported against the retaining wall by the secondary arm; The swing end of the main arm is equipped with a support plate.

[0012] Preferably, the auxiliary arm is composed of a screw and a sleeve, and one end of the screw is rotatably disposed within the connection interval of the clamp away from the retaining wall; The sleeve is threaded onto the outside of the other end of the screw.

[0013] Preferably, the end of the sleeve is provided with an adapter, which consists of a U-shaped plate and an adapter. The two ends of the U-shaped plate and the swing end of the main arm are hinged together on the support plate, and the swing end of the main arm is located inside the U-shaped opening of the U-shaped plate.

[0014] Preferably, the adapter is mated to the outside of the middle plate of the U-shaped plate, and the adapter is fitted onto the outside of the end of the sleeve.

[0015] Compared with the closest prior art, the technical solution of this application has the following beneficial effects: The filter pipe structure provided in this application can effectively resist the pressure and lateral displacement stress caused by the displacement of the filter layer due to the settlement of the backfill soil. It has a strong supporting effect, good stability, is not easily damaged, and effectively ensures the normal drainage of water contained in the soil behind the retaining wall. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. Wherein: Figure 1 This is a schematic diagram of the front view of this application; Figure 2 This is a schematic diagram of the overall structure of this application; Figure 3 This is a schematic diagram of the overall structure of the tube in this application.

[0017] In the diagram: 1. Pipe body; 2. Annular protrusion; 3. Water-permeable hole; 4. Water-permeable layer; 5. Clamp; 6. Connecting column; 7. V-shaped rod; 8. Top support pipe; 9. Pressure plate; 10. Connecting sleeve; 11. Main arm; 12. Support plate; 13. Screw; 14. Sleeve; 15. U-shaped plate; 16. Adapter. Detailed Implementation

[0018] The present application will now be described in detail with reference to the accompanying drawings and embodiments. Various examples are provided by way of explanation and not by way of limitation. In fact, those skilled in the art will recognize that modifications and variations can be made to the present application without departing from the scope or spirit thereof. For example, a feature shown or described as part of one embodiment may be used in another embodiment to produce yet another embodiment. Therefore, it is desirable that the present application encompass such modifications and variations that fall within the scope of the appended claims and their equivalents.

[0019] In the following description, the terms "first / second / third" are used merely to distinguish similar objects and do not represent a specific order of objects. It is understood that "first / second / third" may be interchanged in a specific order or sequence where permitted, so that the embodiments of this application described herein can be implemented in an order other than that illustrated or described herein.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used herein is for the purpose of describing embodiments of this disclosure only and is not intended to limit this disclosure.

[0021] In the description of this application, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," and "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and do not require that this application be constructed and operated in a specific orientation, and therefore should not be construed as limiting this application. The terms "connected," "linked," and "set up" used in this application should be interpreted broadly. For example, they can refer to fixed connections or detachable connections; direct connections or indirect connections through intermediate components; wired connections, radio connections, or wireless communication signal connections. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0022] This embodiment aims to provide a buttress-type retaining wall reverse filter drainage pipe, whose main function is to provide high strength and high stability, and it will not easily break due to the pressure or displacement of the reverse filter layer.

[0023] Reference Figures 1-3 The system includes: a pipe body 1, made of metal; an inclined hole for the pipe body 1 to pass through is drilled at the lower part of the retaining wall; the pipe body 1 is placed in the inclined hole, with its lower end facing the front of the retaining wall and protruding outwards; and an annular protrusion 2 is welded radially to the outside of the lower end of the pipe body 1 to limit its movement; the upper end of the pipe body 1 faces the rear of the retaining wall and extends outwards for a distance to be covered and buried by the filter layer; and permeable holes 3 are distributed circumferentially along the buried section of the pipe body 1. 3. A permeable layer 4 is fixedly wrapped around the outside of the pipe body 1 by clamps 5. The permeable layer 4 can be geotextile, which has good water permeability and can block debris from entering the inside of the pipe body 1. It can also effectively prevent sand and soil loss. At the same time, filter blocks can be filled inside the pipe body 1 corresponding to the water permeable holes 3, and the filter blocks can cover the entire permeable surface. The filter blocks are made of permeable concrete, which can effectively block sand and soil loss while allowing water to pass through. If the permeable layer 4 is damaged, the filter blocks can also ensure the normal operation of the filter pipe.

[0024] Reference Figure 1 and Figure 2A pair of clamps 5 are provided to tighten both ends of the permeable layer 4 to the pipe body 1. The length of the filter block should also cover the positions of the two clamps 5. The two clamp plates that make up the clamp 5 are clamped to the outside of the pipe body 1 in the left and right direction. The clamp plates are conventionally connected by bolts. The clamp opening size of the clamp 5 is smaller than the diameter of the pipe body 1 so that a connection gap can be reserved at the connection of the two clamp plates of the clamp 5. A side support structure and a vertical support structure are provided between the front and rear clamps 5. The side support structure is located above the pipe body 1 to resist the lateral stress on the pipe body 1, and the vertical support structure is located below the pipe body 1 to resist the pressure on the pipe body 1, thereby enhancing the stability of the pipe body 1.

[0025] Specifically, the side support structure includes: a connecting column 6 and a side support arm. The connecting column 6 is located directly above the pipe body 1, so that both ends of the connecting column 6 extend into the connection interval of the two clamps 5 and are fixed by bolts. The side support arm consists of a V-shaped rod 7 and a top support tube 8. The middle section of the V-shaped rod 7 is horizontally inserted into the middle of the connecting column 6 and can rotate. The top support tube 8 is threaded onto both ends of the V-shaped rod 7, so that the length of both ends of the V-shaped rod 7 can be adjusted by rotating the top support tube 8. Combined with the annular protrusion 2 at the front end of the pipe body 1, it allows... The end of the V-shaped rod 7 can be supported against the rear side of the retaining wall, thereby ensuring that the V-shaped rod 7 maintains a stable horizontal support shape. The end of the top support pipe 8 is connected to a pressure plate 9, and a tubular connecting sleeve 10 is hinged to one side of the pressure plate 9. The connecting sleeve 10 is fitted onto the outside of the end of the top support pipe 8, and the connecting sleeve 10 can rotate to ensure that the end of the V-shaped rod 7 can stably contact the rear side of the retaining wall after being extended, thereby providing lateral support for the pipe body 1 and preventing the pipe body 1 from breaking due to the displacement of the filter layer.

[0026] Reference Figure 1 and Figure 2 The vertical support structure includes a main boom 11 and a secondary boom. One end of the main boom 11 is rotatably mounted in the connection interval of the front clamp 5, which is adjacent to the retaining wall, and is conventionally fixed with bolts. At this time, the bolts are used as hinge shafts. The swing end of the main boom 11 is extended by the secondary boom and abuts against the retaining wall. Specifically, the swing end of the main boom 11 is provided with a support plate 12. The secondary boom is composed of a screw 13 and a sleeve 14. One end of the screw 13 is rotatably mounted in the connection interval of the rear clamp 5, which is away from the retaining wall, and is conventionally fixed with bolts. At this time, the bolts are also used as hinge shafts. The sleeve 14 is threaded onto the other end of the screw 13.

[0027] The end of the sleeve 14 is provided with an adapter, which consists of a U-shaped plate 15 and an adapter 16. The two ends of the U-shaped plate 15 and the swing end of the main arm 11 are hinged to the support plate 12, and the swing end of the main arm 11 is located inside the U-shaped opening of the U-shaped plate 15. The adapter 16 is connected to the outside of the middle plate of the U-shaped plate 15. The adapter 16 is the sleeve 14, so that the adapter 16 is fitted onto the outside of the end of the sleeve 14. The adapter 16 is provided so as not to affect the rotation of the sleeve 14 to change the length of the auxiliary arm.

[0028] In this embodiment, the rotation angle of the V-shaped rod 7 on the connecting column 6 can be adjusted according to the tilt angle of different pipe bodies 1, so that the V-shaped rod 6 remains horizontal relative to the rear side of the retaining wall.

[0029] The filter pipe structure provided in this embodiment can effectively resist the pressure and lateral displacement stress caused by the displacement of the filter layer due to the settlement of the backfill soil. It has a strong supporting effect, good stability, and is not easily damaged. It can effectively ensure the normal drainage of water contained in the soil behind the retaining wall.

[0030] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A buttress-type retaining wall reverse filter drainage pipe, characterized in that, include: The pipe body is obliquely installed at the bottom of the retaining wall. The lower end of the pipe body faces the front side of the retaining wall and protrudes outward. The outer side of the lower end of the pipe body is provided with an annular protrusion along the radial direction. The upper end of the pipe body faces the rear side of the retaining wall and extends outward to be buried by the filter layer. The buried section of the pipe is provided with water-permeable holes, and a water-permeable layer is fixedly wrapped around the outside of the pipe with clamps corresponding to the water-permeable holes; The clamps are provided in pairs to tighten both ends of the permeable layer to the pipe body. The two clamp plates of the clamps hug the outside of the pipe body in the left-right direction. A side support structure and a vertical support structure are provided between the two clamps. The side support structure is located above the pipe body to resist the lateral stress on the pipe body, and the vertical support structure is located below the pipe body to resist the pressure on the pipe body.

2. The buttress-type retaining wall reverse filter drainage pipe according to claim 1, characterized in that, The clamp opening size is smaller than the diameter of the pipe body, so that a connection gap is reserved at the connection point of the two clamp plates of the clamp.

3. The buttress-type retaining wall reverse filter drainage pipe according to claim 2, characterized in that, The side support structure includes: a connecting column and a side support arm; The connecting post is located directly above the pipe body, so that both ends of the connecting post extend into the connection interval of the two clamps respectively, and are fixed by bolts.

4. The buttress-type retaining wall reverse filter drainage pipe according to claim 3, characterized in that, The side support arm is composed of a V-shaped rod and a top support tube, with the middle section of the V-shaped rod inserted horizontally into the middle of the connecting column; Both ends of the V-shaped rod are threaded with top support tubes, which can be rotated to adjust the length of both ends of the V-shaped rod.

5. The buttress-type retaining wall reverse filter drainage pipe according to claim 4, characterized in that, A pressure plate is connected to the end of the top support tube; A connecting sleeve is hinged to one side of the pressure plate, and the connecting sleeve is fitted onto the outside of the end of the top support tube.

6. The buttress-type retaining wall reverse filter drainage pipe according to claim 3, characterized in that, The vertical support structure includes a main boom and a secondary boom. One end of the main boom is rotatably disposed within the connection interval of the clamp adjacent to the retaining wall, and the swing end of the main boom is supported against the retaining wall by the secondary boom. The swing end of the main arm is equipped with a support plate.

7. The buttress-type retaining wall reverse filter drainage pipe according to claim 6, characterized in that, The auxiliary arm is composed of a screw and a sleeve, with one end of the screw rotatably positioned within the connection interval of the clamp away from the retaining wall; The sleeve is threaded onto the outside of the other end of the screw.

8. The buttress-type retaining wall reverse filter drainage pipe according to claim 7, characterized in that, The end of the sleeve is provided with an adapter, which consists of a U-shaped plate and an adapter. The two ends of the U-shaped plate and the swing end of the main arm are hinged together on the support plate, and the swing end of the main arm is located inside the U-shaped opening of the U-shaped plate.

9. The buttress-type retaining wall reverse filter drainage pipe according to claim 8, characterized in that, The adapter is connected to the outside of the middle plate of the U-shaped plate and is fitted onto the outside of the end of the sleeve.

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