Anti-streaming device for diaphragm wall

Abstract

The utility model belongs to the technical field of underground diaphragm wall construction, and particularly relates to an underground diaphragm wall anti-streaming device which comprises a rigid connector, two T-shaped grooves are formed in the left side and the right side of the rigid connector respectively, protruding blocks are connected into the T-shaped grooves respectively in a sliding mode, steel frames are fixedly connected to the sides, away from each other, of the protruding blocks respectively, and the steel frames are fixedly connected to the left side and the right side of the rigid connector respectively. A cavity is formed in the space formed by the close sides of the two steel frames, a reinforcement cage is arranged in the cavity, closed steel columns are arranged on the left side and the right side of the rigid connector respectively, a first soil layer is fixedly connected to the rear side of the rigid connector, and a second soil layer is fixedly connected to the front sides of the two closed steel columns. By means of the rigid connectors, the protruding blocks, the steel frames, the cavity reinforcement cages, the closed steel columns, the first soil layer and the second soil layer, the integrity and the waterproof performance of the wall body can be improved, and it is guaranteed that the wall seam connecting quality of adjacent groove sections is firmer.

Description

Technical Field

[0001] The utility model relates to the technical field of diaphragm wall construction, in particular to a diaphragm wall anti-bypass flow device. Background Technique

[0002] The diaphragm wall, as an effective deep foundation pit retaining structure, is widely used in various underground projects. The diaphragm wall provides a continuous wall to block the intrusion of soil and water, ensuring the safety and smooth progress of construction. However, during the actual construction process, gaps often occur at the connection parts of the diaphragm wall, especially at the section of the H-shaped steel joint, due to improper design or construction, resulting in bypass flow during concrete pouring. This not only affects the overall quality of the diaphragm wall but also poses a serious threat to the stability of the foundation pit.

[0003] The prior art has the following defects or problems: The prior art with the publication number of CN209907368U discloses a device for preventing concrete bypass flow in a diaphragm wall, including: anti-bypass flow iron sheets and H-shaped steel. A steel reinforcement cage is fixed in the U-shaped groove on one side of the H-shaped steel. On the outer sides of a pair of flanges of the H-shaped steel, a pair of support iron sheets with the same structure and mirror symmetry are respectively fixed along its length. One end of a pair of anti-bypass flow iron sheets with the same structure and mirror symmetry is fixed on the top surface or the side surface of the pair of support iron sheets. The other free ends of the pair of anti-bypass flow iron sheets respectively extend towards the steel reinforcement cage and are close to the stratum soil surface and the excavation surface. Beneficial effects: The anti-bypass flow iron sheets have greater flexibility and a large opening force. Under the extrusion of the flowing concrete, the anti-bypass flow iron sheets will closely adhere to the stratum soil surface and the excavation surface to hold the concrete, block the gaps between the steel reinforcement cage and the stratum soil surface and the excavation surface, solve the problem of concrete bypass flow in the diaphragm wall, do not appear mud gap zones, avoid water leakage at the connection part of the diaphragm wall, provide safety guarantee for the subsequent foundation pit excavation, and shorten the construction period.

[0004] During the use of the above-mentioned equipment, it is difficult to install quickly, resulting in the bypass flow of concrete will exacerbate the instability of the groove wall, further increasing the risk of collapse, and the bypass flow path of the concrete will be widened, so that more concrete flows through the outside of the H-shaped steel instead of being solidified at the designed position, thus weakening the overall structural integrity of the wall. In the prior art, the air separation device, the poured concrete cannot be closely combined with the H-shaped steel joint, resulting in water seepage at the H-shaped steel joint of the diaphragm wall, affecting the construction quality of the diaphragm wall and increasing the safety risk during the subsequent foundation pit excavation process.

[0005] It should be noted that the above content belongs to the technical cognition scope of the inventor and does not necessarily constitute the prior art. Content of the Utility Model

[0006] In view of the deficiencies of the prior art, the utility model provides a diaphragm wall anti-bypass flow device, which solves the existing problems.

[0007] To achieve the above object, the present utility model provides the following technical solutions:

[0008] A diaphragm wall anti-bypass flow device includes a rigid joint. Two T-shaped grooves are respectively formed on the left and right sides of the rigid joint. A plurality of bumps are respectively slidably connected inside the T-shaped grooves. Steel frames are respectively fixedly connected to the far sides of the plurality of bumps. A cavity is formed in the space formed by the adjacent sides of the two steel frames. A steel reinforcement cage is arranged inside the cavity. Closed steel columns are respectively arranged on the left and right sides of the rigid joint. A first layer of soil is fixedly connected to the rear side of the rigid joint. A second layer of soil is fixedly connected to the front sides of the two closed steel columns. A plurality of anti-bypass flow components are arranged outside the rigid joint.

[0009] As a preferred technical solution of the present utility model, the plurality of anti-bypass flow components include anti-bypass flow iron sheets. A plurality of clamping columns are slidably connected inside the anti-bypass flow iron sheets. Two openings are respectively formed inside the plurality of clamping columns. A plurality of receiving grooves are formed inside the steel frames. Springs are fixedly connected inside the receiving grooves. Clamping blocks are fixedly connected to the left sides of the two springs.

[0010] As a preferred technical solution of the present utility model, the plurality of steel frames are slidably connected to the inner wall of the rigid joint. The rear sides of the bumps are fixedly connected to the rear sides of the steel frames.

[0011] As a preferred technical solution of the present utility model, the outer side of the steel reinforcement cage is in contact with the front side of the first layer of soil. The rear side of the second layer of soil is in contact with the front side of the rigid joint.

[0012] As a preferred technical solution of the present utility model, the rear sides of the two closed steel columns are in contact with the front side of the first layer of soil.

[0013] As a preferred technical solution of the present utility model, the rear sides of the plurality of anti-bypass flow iron sheets are respectively in contact with the front sides of the steel frames. The outer sides of the clamping columns are slidably connected inside the steel frames.

[0014] As a preferred technical solution of the present utility model, the outer side of the clamping block is in contact with the inner wall of the opening. The outer side of the clamping block is slidably connected to the inner wall of the steel frame.

[0015] Compared with the prior art, the present utility model provides a diaphragm wall anti-bypass flow device, which has the following beneficial effects:

[0016] 1. A diaphragm wall anti-bypass device. By setting a rigid joint, bumps, a steel frame, a cavity steel cage, a closed steel column, a first layer of soil, and a second layer of soil, the rigid joint and the closed steel column are first installed in the groove between the first layer of soil and the second layer of soil, then the bumps and the steel frame are installed along the T-shaped groove on the rigid joint, and then the steel cage is installed on the cavity, so as to ensure that the concrete is poured in the correct position, thereby improving the integrity and waterproof performance of the wall, and can effectively prevent the concrete from bypassing into the steel section, ensuring that the wall joint connection quality between adjacent slots is more firm.

[0017] 2. A diaphragm wall anti-bypass device. By setting anti-bypass iron sheets, clamping columns, receiving grooves, springs, clamping blocks, and openings, the clamping columns are manually inserted into the anti-bypass iron sheets and the steel frame, so that the anti-bypass iron sheets are fixed on the steel frame. The clamping columns will contact the clamping blocks and push the clamping blocks to slide inside the receiving grooves, causing the clamping blocks to compress the springs, and then the clamping blocks move into the openings through the elasticity of the springs to complete the locking and fixing, so that the poured concrete can be closely combined with the H-shaped steel joint, avoiding water seepage at the steel section joint of the diaphragm wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0019] Figure 2 is a structural schematic diagram of the rigid joint of the present utility model;

[0020] Figure 3 is a structural schematic diagram of the anti-bypass iron sheet of the present utility model;

[0021] Figure 4 is Figure 3 the enlarged view at A in

[0022] In the figure: 1. Rigid joint; 2. Bump; 3. Steel frame; 4. Cavity; 5. Steel cage; 6. Closed steel column; 7. First layer of soil; 8. Second layer of soil; 9. Anti-bypass iron sheet; 10. Clamping column; 11. T-shaped groove; 12. Receiving groove; 13. Spring; 14. Clamping block; 15. Opening. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] In order to more clearly understand the above objects, features, and advantages of the present utility model, the following further describes the present utility model with reference to the drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] Embodiment 1

[0026] As Figure 1 - Figure 4 shown, the present invention provides a technical solution: a diaphragm wall anti-bypass flow device, including a rigid joint 1. Two T-shaped grooves 11 are respectively opened on the left and right sides of the rigid joint 1. A plurality of bumps 2 are respectively slidably connected inside the T-shaped grooves 11. The rear sides of the bumps 2 are fixedly connected to the rear side of a steel frame 3. The relatively far sides of the plurality of bumps 2 are respectively fixedly connected to a steel frame 3. The exteriors of the plurality of steel frames 3 are slidably connected to the inner wall of the rigid joint 1. A cavity 4 is formed in the space formed by the relatively close sides of the two steel frames 3. A steel reinforcement cage 5 is arranged inside the cavity 4. The exterior of the steel reinforcement cage 5 is in contact with the front side of the first layer of soil 7. Closed steel columns 6 are respectively arranged on the left and right sides of the rigid joint 1. The rear sides of the two closed steel columns 6 are in contact with the front side of the first layer of soil 7. The rear side of the rigid joint 1 is fixedly connected to the first layer of soil 7. The front sides of the two closed steel columns 6 are fixedly connected to the second layer of soil 8. The rear side of the second layer of soil 8 is in contact with the front side of the rigid joint 1. A plurality of anti-bypass flow components are arranged outside the rigid joint 1.

[0027] In this embodiment, the rigid joint 1 and the closed steel columns 6 are first installed in the groove between the first layer of soil 7 and the second layer of soil 8. The rigid joint 1 serves as the core part of the entire structure, connecting each component and maintaining the rigidity of the structure. The exterior of the steel frame 3 is slidably connected to the inner wall of the rigid joint 1 to enhance the stability of the structure. The closed steel columns 6 are arranged on the left and right sides of the rigid joint 1, and their rear sides are in contact with the front side of the first layer of soil 7 to close the wall and transfer the load. Then, the bumps 2 and the steel frames 3 are installed along the T-shaped grooves 11 on the rigid joint 1. Then, the steel reinforcement cage 5 is installed on the cavity 4. The steel reinforcement cage 5 is located inside the cavity 4, and its exterior is in contact with the front side of the first layer of soil 7 to enhance the bearing capacity and anti-deformation ability of the wall. The first layer of soil 7 and the second layer of soil 8 are respectively fixedly connected to the rear side of the rigid joint 1 and the front side of the closed steel columns 6 to protect the wall from soil pressure and water flow erosion.

[0028] Embodiment 2

[0029] As Figure 1 - Figure 4As shown in the figure, a plurality of anti-flow-around components include anti-flow-around iron sheets 9. The rear sides of the plurality of anti-flow-around iron sheets 9 are respectively in contact with the front side of the steel frame 3. A plurality of clamping posts 10 are slidably connected inside the anti-flow-around iron sheets 9. The outside of the clamping posts 10 is slidably connected inside the steel frame 3. Two openings 15 are respectively formed inside the plurality of clamping posts 10. A plurality of receiving grooves 12 are formed inside the steel frame 3. A spring 13 is fixedly connected inside the receiving groove 12. The left sides of the two springs 13 are fixedly connected with a clamping block 14. The outside of the clamping block 14 is in contact with the inner wall of the opening 15. The outside of the clamping block 14 is slidably connected to the inner wall of the steel frame 3.

[0030] In this embodiment, the clamping posts 10 are manually inserted into the anti-flow-around iron sheets 9 and the steel frame 3. The anti-flow-around iron sheet 9 is the main part of the anti-flow-around component. It is in contact with the front side of the steel frame 3 and is used to prevent water or other fluids from flowing around the wall, so that the anti-flow-around iron sheet 9 is fixed on the steel frame 3. The clamping posts 10 will contact the clamping blocks 14 and push the clamping blocks 14 to slide inside the receiving grooves 12, so that the clamping posts 10 can move when needed for adjustment or maintenance. The clamping blocks 14 compress the springs 13, and then the elastic force of the springs 13 makes the clamping blocks 14 move into the openings 15. The clamping blocks 14 contract inward when subjected to external forces and return to their original positions by the force of the springs 13 after the external forces disappear, completing the locking and fixing.

[0031] The working principle of this embodiment: During installation, the rigid joint 1 and the closed steel column 6 are first installed in the groove between the first soil layer 7 and the second soil layer 8. The rigid joint 1 is the core part of the entire structure, connecting each component and maintaining the rigidity of the structure. The outside of the steel frame 3 is slidably connected to the inner wall of the rigid joint 1 to enhance the stability of the structure. The closed steel column 6 is arranged on the left and right sides of the rigid joint 1, and its rear side is in contact with the front side of the first soil layer 7, which is used to close the wall and transfer the load. Then, the convex blocks 2 and the steel frame 3 are installed along the T-shaped grooves 11 on the rigid joint 1. Then, the steel reinforcement cage 5 is installed on the cavity 4. The steel reinforcement cage 5 is located inside the cavity 4, and its outside is in contact with the front side of the first soil layer 7, which is used to enhance the bearing capacity and anti-deformation ability of the wall. The first soil layer 7 and the second soil layer 8 are respectively fixedly connected to the rear side of the rigid joint 1 and the front side of the closed steel column 6 to protect the wall from soil pressure and water flow erosion, thereby improving the integrity and waterproof performance of the wall, and can effectively prevent the concrete from flowing around and entering the steel section, ensuring that the connection quality of the wall joints in adjacent segments is more firm; when water flow or other fluids exert pressure on the anti-flow-around iron sheet 9, the clamping posts 10 and the clamping blocks 14 can move within a certain range to adapt to this pressure change. The springs 13 provide the necessary elasticity, enabling the clamping blocks 14 to contract inward when the pressure increases and return to their original positions when the pressure decreases, thereby maintaining the stability and waterproof performance of the anti-flow-around iron sheet 9, so that the poured concrete can be closely combined with the H-shaped steel joint, avoiding water seepage at the steel section joint of the diaphragm wall.

[0032] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used 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 recorded in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A diaphragm wall anti-bypass device, characterized in that: It includes a rigid joint (1). Two T-shaped grooves (11) are respectively opened on the left and right sides of the rigid joint (1). A plurality of bumps (2) are respectively slidably connected inside the T-shaped grooves (11). Steel frames (3) are respectively fixedly connected to the far sides of the plurality of bumps (2). A cavity (4) is formed in the space composed of the adjacent sides of the two steel frames (3). A steel reinforcement cage (5) is arranged inside the cavity (4). Closed steel columns (6) are respectively arranged on the left and right sides of the rigid joint (1). The first layer of soil (7) is fixedly connected to the rear side of the rigid joint (1). The second layer of soil (8) is fixedly connected to the front sides of the two closed steel columns (6). A plurality of anti-flow-around components are arranged outside the rigid joint (1).

2. The diaphragm wall anti-bypass device according to claim 1, characterized in that: The plurality of anti-flow-around components include anti-flow-around iron sheets (9). A plurality of clamping columns (10) are slidably connected inside the anti-flow-around iron sheets (9). Two openings (15) are respectively formed inside the plurality of clamping columns (10). A plurality of receiving grooves (12) are formed inside the steel frames (3). Springs (13) are fixedly connected inside the receiving grooves (12). Clamping blocks (14) are fixedly connected to the left sides of the two springs (13).

3. The diaphragm wall anti-bypass device according to claim 1, wherein: The plurality of steel frames (3) are slidably connected to the inner wall of the rigid joint (1). The rear sides of the bumps (2) are fixedly connected to the rear sides of the steel frames (3).

4. The diaphragm wall anti-bypass device according to claim 1, characterized in that: The outer side of the steel reinforcement cage (5) is in contact with the front side of the first layer of soil (7). The rear side of the second layer of soil (8) is in contact with the front side of the rigid joint (1).

5. The diaphragm wall anti-bypass device according to claim 1, characterized in that: The rear sides of the two closed steel columns (6) are in contact with the front side of the first layer of soil (7).

6. The diaphragm wall anti-bypass device according to claim 2, characterized in that: The rear sides of the plurality of anti-flow-around iron sheets (9) are respectively in contact with the front sides of the steel frames (3). The outer sides of the clamping columns (10) are slidably connected inside the steel frames (3).

7. The diaphragm wall anti-bypass device according to claim 2, characterized in that: The outer side of the clamping block (14) is in contact with the inner wall of the opening (15). The outer side of the clamping block (14) is slidably connected to the inner wall of the steel frame (3).

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