A mixed arrangement type building foundation pit retaining wall

Abstract

The utility model discloses a mixed arrangement type building foundation pit retaining wall relates to building foundation pit field. This mixed arrangement type building foundation pit retaining wall includes retaining wall body and sets up the drainage mechanism at its bottom. A plurality of drainage holes and multiple vertical flow grooves are seted up on the retaining wall body, and the drainage hole reduces the water pressure of outside, and the vertical flow groove is linked together with longitudinal multiple drainage holes, and the drainage hole is equipped with the filter of reverse filter mechanism and filters the impurity in water. Reverse filter mechanism contains the pipe, can dismantle filter screen, gravel filter layer, sand layer and pull block etc. The drainage mechanism includes the drainage groove and the net board, and the net board blocks up the sundries and enters the drainage groove. This mixed arrangement type building foundation pit retaining wall can discharge the water outside the foundation pit in time through setting up multiple drainage holes on the retaining wall body, can obviously reduce the water pressure of outside of retaining wall, reduces the lateral force of water pressure to retaining wall, thereby strengthens the stability of retaining wall, reduces the risk of retaining wall deformation, breakage or even collapse, guarantees the safety of foundation pit construction.

Description

Technical Field

[0001] This utility model relates to the field of building foundation pits, and in particular to a hybrid arrangement of building foundation pit retaining walls. Background Technology

[0002] The common method for underground structure construction in building engineering is the open-cut method. In the open-cut method, the foundation pit needs to be excavated first, and then the structure construction can be carried out. In order to ensure the safety of underground structure construction and the surrounding environment of the foundation pit, it is necessary to adopt support, reinforcement and protection measures for the side walls of the foundation pit and the surrounding environment. Generally, retaining wall devices are set up to protect the foundation pit and prevent the soil at the top of the foundation pit from collapsing during the construction process.

[0003] However, traditional retaining walls for building foundation pits have some problems in practical applications. During the rainy season, the increased rainfall leads to higher water pressure outside the pit, resulting in significant lateral pressure on the retaining wall. If this water pressure cannot be reduced effectively and promptly, it can cause deformation, cracking, or even collapse of the retaining wall, seriously affecting the safety of foundation pit construction. Existing retaining walls are usually cast in one piece, which prevents water from draining from the outside of the pit in a timely manner. This results in higher water pressure outside the pit during the rainy season, easily creating more leakage points in the retaining wall, which can eventually lead to cracking or even collapse. Therefore, developing a hybrid arrangement retaining wall for building foundation pits that can effectively solve the above problems is of significant practical importance. Summary of the Invention

[0004] The purpose of this utility model is to provide a hybrid arrangement retaining wall for building foundation pits, in order to solve the problem that existing retaining walls are usually cast in one piece, which leads to the inability of water outside the foundation pit to be discharged in time. This results in high water pressure outside the foundation pit during the rainy season, which easily causes more leakage points in the retaining wall, and eventually leads to cracking or even collapse of the retaining wall.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A mixed-arrangement building foundation pit retaining wall includes a retaining wall body and a drainage mechanism disposed at its bottom. The retaining wall body is provided with multiple drainage holes and multiple vertical flow channels. The drainage holes are used to reduce the water pressure on the outside of the retaining wall body. The vertical flow channels are connected to the multiple drainage holes in the longitudinal direction. A reverse filtration mechanism is provided in the drainage holes. The reverse filtration mechanism is used to filter impurities in the water.

[0006] Preferably, the reverse filtration mechanism includes an insert tube, a removable filter screen, a pebble filter layer, a sand layer, and a pull block. The insert tube is inserted into a drain hole, the removable filter screen is disposed at the outer end of the insert tube, the pebble filter layer is disposed on the inner side of the removable filter screen, the sand layer is disposed on one side of the pebble filter layer, and the pull block is fixedly connected to the inner end of the insert tube.

[0007] Preferably, the pull block is provided with a pin, the pin passes through the pull block and is inserted into the retaining wall body, and the pin is used to fix the insertion pipe.

[0008] Preferably, a baffle is provided on one side of the sand layer, which is used to divide the insertion tube into a filter chamber and a cavity.

[0009] Preferably, the drainage mechanism includes a drainage trough and a mesh plate. The drainage trough is located on the bottom inner side of the retaining wall body, and the mesh plate is installed on the top of the drainage trough. The mesh plate is used to block debris from entering the drainage trough.

[0010] Preferably, the opening of the drainage trough is located below the vertical flow channel, and the opening of the drainage trough is provided with a certain slope along the flow direction.

[0011] The technical effects and advantages of this utility model are as follows: 1. This hybrid arrangement of the building foundation pit retaining wall, by opening multiple drainage holes on the retaining wall body, can timely discharge water from the outside of the foundation pit, significantly reduce the water pressure on the outside of the retaining wall, reduce the lateral force of water pressure on the retaining wall, thereby enhancing the stability of the retaining wall, reducing the risk of deformation, cracking or even collapse of the retaining wall, and ensuring the safety of foundation pit construction.

[0012] This hybrid-arranged retaining wall for the building foundation pit features a reverse filtration mechanism within its drainage holes. This mechanism comprises multiple layers of filtration, including removable filter screens, gravel filter layers, and sand layers. It effectively filters impurities from the water, preventing blockages in the drainage channels and ensuring smooth drainage. The insert pipe within the reverse filtration mechanism is secured to the retaining wall body via pull blocks and pins. The removable filter screen design allows for easy removal of the insert pipe from the drainage holes when cleaning or replacing filter components, facilitating cleaning or replacement of each filter layer and reducing maintenance costs and workload. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is an enlarged view of part A of the present invention; Figure 3 This is a cross-sectional schematic diagram of the reverse filtration mechanism of this utility model; Figure 4 This is a side view of the drainage mechanism of this utility model.

[0015] In the diagram: 1. Retaining wall body; 11. Drainage hole; 12. Vertical flow channel; 13. Reverse filtration mechanism; 131. Insert pipe; 132. Removable filter screen; 133. Stone filter layer; 134. Sand layer; 135. Pull block; 2. Drainage mechanism; 21. Drainage channel; 22. Mesh plate. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Example 1: This utility model provides the following... Figures 1-4 The diagram illustrates a hybrid arrangement retaining wall for a foundation pit, comprising a retaining wall body 1 and a drainage mechanism 2 disposed at its bottom. The retaining wall body 1 has multiple drainage holes 11 and multiple vertical flow channels 12. The drainage holes 11 reduce the water pressure outside the retaining wall body 1. The vertical flow channels 12 are connected to the multiple drainage holes 11. A reverse filtration mechanism 13 is installed within each drainage hole 11 to filter impurities from the water. By creating multiple drainage holes 11 on the retaining wall body 1, water outside the foundation pit can be discharged promptly. The discharged water flows downwards along the vertical flow channels 12 until it flows into the drainage mechanism 2, significantly reducing the water pressure outside the retaining wall and decreasing the lateral force exerted by the water pressure on the retaining wall. This enhances the stability of the retaining wall, reduces the risk of deformation, cracking, or even collapse, and ensures the safety of foundation pit construction.

[0018] Furthermore, the reverse filtration mechanism 13 includes an insertion tube 131, a detachable filter screen 132, a gravel filter layer 133, a sand layer 134, and a pull block 135. The insertion tube 131 is inserted into the drain hole 11. The detachable filter screen 132 is located at the outer end of the insertion tube 131. The gravel filter layer 133 is located inside the detachable filter screen 132. The sand layer 134 is located on one side of the gravel filter layer 133. The pull block 135 is fixedly connected to the inner end of the insertion tube 131. During the process of water entering the retaining wall through the drain hole 11, it first passes through the detachable filter screen 132 located at the inner end of the drain hole 11. The detachable filter screen 132 can block larger particles of impurities from entering the drain hole 11. Next, the water passes sequentially through the gravel filter layer 133 and the sand layer 134. These two filtration structures can further filter out fine impurities in the water, making the water discharged from the retaining wall clearer and effectively preventing impurities from clogging the drainage channel and causing soil erosion.

[0019] Furthermore, a pin is provided on the pull block 135, which passes through the pull block 135 and is inserted into the retaining wall body 1. The pin is used to fix the insertion pipe 131. The insertion pipe 131 is fixed to the retaining wall body 1 by the pull block 135 and the pin. The pin on the pull block 135 passes through the pull block 135 and is inserted into the retaining wall body 1, ensuring the stability of the insertion pipe 131 during drainage. When it is necessary to clean or replace the filter components in the reverse filter mechanism 13, simply pull out the pin and pull the insertion pipe 131 out of the drain hole 11 through the pull block 135. This allows for the cleaning or replacement of the detachable filter screen 132, the stone filter layer 133, and the sand layer 134, making the operation convenient and quick.

[0020] Furthermore, a baffle is provided on one side of the sand layer 134, which is used to divide the insertion tube 131 into a filter chamber and a cavity.

[0021] Example 2: This utility model provides the following... Figures 1-4 The diagram shows a mixed-arrangement building foundation pit retaining wall, including a retaining wall body 1 and a drainage mechanism 2 disposed at its bottom. The retaining wall body 1 has multiple drainage holes 11 and multiple vertical flow channels 12. The drainage holes 11 are used to reduce the water pressure outside the retaining wall body 1. The vertical flow channels 12 are connected to the multiple longitudinal drainage holes 11. A reverse filtration mechanism 13 is disposed in the drainage holes 11. The reverse filtration mechanism 13 is used to filter impurities in the water.

[0022] Furthermore, the drainage mechanism 2 includes a drainage channel 21 and a mesh plate 22. The drainage channel 21 is located on the bottom inner side of the retaining wall body 1, and the mesh plate 22 is installed on the top of the drainage channel 21. The mesh plate 22 is used to block debris from entering the drainage channel 21.

[0023] Furthermore, the opening of the drainage trough 21 is located below the vertical flow channel 12, and the opening of the drainage trough 21 has a certain slope along the flow direction. The drainage mechanism 2 at the bottom includes the drainage trough 21 and a mesh plate 22. The mesh plate 22 can block debris from entering the drainage trough 21 and prevent the drainage trough 21 from becoming clogged. The fact that the opening of the drainage trough 21 is located below the vertical flow channel 12 and has a certain slope along the flow direction facilitates the rapid discharge of water and improves drainage efficiency.

[0024] Working principle: When water accumulates outside the foundation pit, it enters the retaining wall through multiple drainage holes 11 on the retaining wall body 1. Since the vertical flow channel 12 is connected to the multiple drainage holes 11, the water entering the retaining wall flows downwards along the vertical flow channel 12, eventually converging into the drainage trough 21 located on the inner side of the bottom of the retaining wall. The opening of the drainage trough 21 is located below the vertical flow channel 12 and has a certain slope along the flow direction, allowing the water to drain quickly under gravity, thereby effectively reducing the water pressure outside the retaining wall.

[0025] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., 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 mixed-arrangement retaining wall for a building foundation pit, comprising a retaining wall body (1) and a drainage mechanism (2) disposed at its bottom, characterized in that, The retaining wall body (1) is provided with multiple drainage holes (11) and multiple vertical flow channels (12). The drainage holes (11) are used to reduce the water pressure outside the retaining wall body (1). The vertical flow channels (12) are connected to the multiple drainage holes (11) in the longitudinal direction. A reverse filter mechanism (13) is provided in the drainage hole (11). The reverse filter mechanism (13) is used to filter impurities in the water.

2. The hybrid arrangement retaining wall for building foundation pits according to claim 1, characterized in that, The reverse filtration mechanism (13) includes a tube (131), a removable filter screen (132), a stone filter layer (133), a sand layer (134), and a pull block (135). The tube (131) is inserted into the drain hole (11). The removable filter screen (132) is located at the outer end of the tube (131). The stone filter layer (133) is located inside the removable filter screen (132). The sand layer (134) is located on one side of the stone filter layer (133). The pull block (135) is fixedly connected to the inner end of the tube (131).

3. A hybrid arrangement retaining wall for building foundation pits according to claim 2, characterized in that, The pull block (135) is provided with a pin, which passes through the pull block (135) and is inserted into the retaining wall body (1). The pin is used to fix the insertion tube (131).

4. A hybrid arrangement retaining wall for building foundation pits according to claim 2, characterized in that, A baffle is provided on one side of the sand layer (134), which is used to divide the insertion tube (131) into a filter chamber and a cavity.

5. A hybrid arrangement retaining wall for building foundation pits according to claim 1, characterized in that, The drainage mechanism (2) includes a drainage trough (21) and a mesh plate (22). The drainage trough (21) is located on the bottom inner side of the retaining wall body (1), and the mesh plate (22) is installed on the top of the drainage trough (21). The mesh plate (22) is used to block debris from entering the drainage trough (21).

6. A hybrid arrangement retaining wall for building foundation pits according to claim 5, characterized in that, The opening of the drainage trough (21) is located below the vertical flow channel (12), and the opening of the drainage trough (21) is set with a certain slope along the flow direction.

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