Combined counterweight retaining wall and construction method thereof

Abstract

The application belongs to the technical field of retaining walls, and particularly relates to a combined counterweight retaining wall and a construction method thereof, which comprises a retaining wall, the side surface of the retaining wall is fixedly connected with a clamping assembly mechanism, the front surface of the retaining wall is fixedly connected with an arc-shaped plate, and the inner side wall of the arc-shaped plate is fixedly connected with an anti-extrusion mechanism; the clamping assembly mechanism is provided, the self-weight of the counterweight structure is used to stabilize the base and is matched with the mechanical interlocking constraint, a self-weight and interlocking double anti-sliding and anti-overturning system is formed, the counterweight structure can resist soil side pressure, earthquakes or uneven settlement more than a single structure, the clamping assembly mechanisms are mutually embedded to form integral stress, block misplacement and sliding are avoided, even if local stress concentration occurs, the clamping assembly mechanisms will not cause chain collapse, the risk resistance of the structure is improved, in addition, after the interlocking blocks are tightly engaged, the gap is extremely small, the rainwater can be effectively blocked from penetrating into the wall body by cooperating with the fence grid and the drainage groove plate, backfill soil softening and water and soil loss are avoided, and the counterweight platform and the foundation stability are protected.

Description

Technical Field

[0001] This invention belongs to the field of retaining wall technology, specifically a combined counterweight retaining wall and its construction method. Background Technology

[0002] Retaining walls are support structures used to prevent soil collapse and maintain slope stability. Their core value lies in balancing the lateral pressure on the soil through their own weight or anchoring force. They are widely used in infrastructure, municipal engineering, water conservancy and other fields.

[0003] Existing retaining walls consist of blocks that rely on mortar bonding or simple self-weight for fixation, lacking mechanical interlocking constraints and failing to form an integrated load-bearing system. When subjected to soil lateral pressure, settlement, or earthquakes, the blocks are prone to misalignment, slippage, or even partial collapse. The overall anti-sliding and anti-overturning capacity is insufficient, and the interlocking structure lacks flexibility and adaptability. It is unable to disperse stress through small displacements between blocks, and rigid connections are prone to cracking due to deformation.

[0004] Therefore, the present invention provides a combined counterweight retaining wall and its construction method. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0006] The technical solution adopted by the present invention to solve its technical problem is as follows: The present invention provides a combined counterweight retaining wall, including a retaining wall, a snap-fit ​​assembly mechanism fixedly connected to the side of the retaining wall, an arc-shaped plate fixedly connected to the front of the retaining wall, an anti-compression mechanism fixedly connected to the inner side wall of the arc-shaped plate, a hole groove opened on the surface of the arc-shaped plate, an A reinforcing rib fixedly installed inside the hole groove, a B reinforcing rib staggeredly snapped onto the outer surface of the A reinforcing rib, and the A reinforcing ribs and B reinforcing ribs arranged in a staggered linear array inside the hole groove on the surface of the arc-shaped plate;

[0007] The snap-fit ​​assembly mechanism includes a connecting plate, one end of which is fixedly connected to the side of the retaining wall. A connecting block is fixedly connected to the edge of the surface of the connecting plate. Snap-fit ​​blocks are rotatably connected to both sides of the connecting block via A rotating rods. An installation block is rotatably connected to the middle of the snap-fit ​​block via B rotating rods. A snap-fit ​​block is fixedly connected to the inner side wall of the snap-fit ​​block. A connecting rod is fixedly connected to the back of the connecting plate. A limit rod is fixedly connected to one end of the connecting rod via a bearing. A nut is threaded onto the outer surface of the limit rod.

[0008] As a preferred embodiment of the present invention, the anti-compression mechanism includes a compression rod, one end of which is fixedly connected to the inner wall of the arc-shaped plate. A pressure-bearing cylinder is sleeved on the outer surface of the compression rod. A positioning cone A is fixedly connected to the bottom of the pressure-bearing cylinder. A buffer pad is fixedly connected inside the pressure-bearing cylinder. A spring is fixedly connected to one end of the buffer pad. One end of the spring is fixedly connected to the other end of the compression rod. Guide blocks are fixedly connected to both sides of the outer surface of the compression rod. A sliding groove is formed on the surface of the pressure-bearing cylinder. The outer surface of the guide block is slidably connected to the inside of the sliding groove.

[0009] As a preferred embodiment of the present invention, a frame is fixedly connected to the back of the retaining wall, honeycomb blocks are embedded inside the frame, an abutment plate is fixedly connected to the back of the frame, and an adjustment mechanism is fixedly connected to the back of the abutment plate.

[0010] As a preferred embodiment of the present invention, the honeycomb blocks are provided in multiple form and arranged in a linear array inside the frame, with the center of each honeycomb block being hollowed out.

[0011] As a preferred technical solution of the present invention, the adjustment mechanism includes a support plate, the surface of which is fixedly connected to the back of the abutment plate, and the two ends of the support plate are threadedly connected to support rods via threaded rods. A retainer is fixedly connected to the upper surface of the top of the support rod, and a B-positioning cone is fixedly connected to the bottom of the support rod.

[0012] As a preferred technical solution of the present invention, the inside of the ferrule is connected to a positioning block by a fixing bolt A, the outer surface of the fixing bolt A is connected to a nut B, and a rubber pad is attached to the bottom of the positioning block.

[0013] As a preferred embodiment of the present invention, the upper surface of the positioning block is provided with a threaded hole, the inside of the threaded hole is connected to a B fixing bolt, and the outer surface of the B fixing bolt is connected to a C nut.

[0014] As a preferred embodiment of the present invention, a grid is fixedly connected to the bottom of the connecting plate, a base plate is fixedly connected to the bottom of the grid, and a drainage channel plate is fixedly connected to the side of the base plate.

[0015] This invention also discloses a construction method for a composite counterweight retaining wall, which uses the aforementioned composite counterweight retaining wall and includes the following steps:

[0016] S1. Two sets of interlocking and symmetrical snap-fit ​​assembly mechanisms are used to assemble and install the two sets of retaining walls. The two sets of snap-fit ​​blocks are snapped together, and then the limiting rod is turned inward. The limiting rod presses the connecting rod through the bearing. When the connecting rod is pressed and moved, it drives the connecting block to move through the connecting plate. The connecting block drives the snap-fit ​​block to rotate through the A rotating rod and the B rotating rod. One end of the snap-fit ​​block is tilted and pressed, so that the two sets of snap-fit ​​blocks are assembled with the retaining wall through the snap-fit ​​blocks. The A nut is used to strengthen the fixation.

[0017] S2. Adjust the angle of the support rod inside the support plate using the threaded rod, use the B positioning cone for initial positioning and reinforcement, then use the A fixing bolt to adjust the angle between the sleeve and the positioning block to match the angle of the support plate and the support rod, and use the B fixing bolt to fix the positioning block on the support plate.

[0018] S3. When retaining soil, the A and B reinforcing ribs inside the arc plate are used to strengthen the structure. When subjected to compression, the arc plate is pressed against the compression rod. The compression rod is compressed inside the pressure cylinder through the spring and buffer pad. The pressure cylinder is positioned by the A positioning cone and then bears the pressure.

[0019] The beneficial effects of this invention are as follows:

[0020] 1. The present invention discloses a combined counterweight retaining wall and its construction method. Through the set interlocking assembly mechanism, the self-weight stabilizing foundation of the counterweight structure is combined with the interlocking mechanical interlocking constraint to form a dual anti-sliding and anti-overturning system of self-weight and interlocking. It can resist soil lateral pressure, earthquake or uneven settlement more effectively than a single structure. The interlocking assembly mechanism is interlocked to form an integral force, avoiding block misalignment and slippage. Even if local stress is concentrated, it will not cause a chain collapse, thus improving the structure's risk resistance. In addition, the gaps between the interlocking blocks are extremely small after they are tightly interlocked. With the help of the fence and drainage channel plate, it can effectively prevent rainwater from seeping into the interior of the wall, avoid backfill soil softening and soil erosion, and protect the stability of the counterweight platform and foundation.

[0021] 2. The composite counterweight retaining wall and its construction method described in this invention, through the setting of an anti-compression mechanism, can absorb the lateral compression energy of the soil, disperse the concentrated pressure to a larger stress surface, and prevent the counterweight platform and wall panel from cracking or sinking due to excessive local stress. The anti-compression mechanism can enhance the coordinated stress of the wall panel, counterweight platform and backfill soil, and prevent the relative displacement of each module due to compression, thus consolidating the overall stability of the counterweight foundation and composite structure.

[0022] 3. The composite counterweight retaining wall and its construction method described in this invention, by adding A-reinforcing ribs and B-reinforcing ribs inside the arc-shaped plate, forms a three-dimensional mesh structure with cross-arranged reinforcing ribs. This can disperse the lateral pressure and compressive stress of the soil in all directions, avoiding cracking and damage of the wall caused by local stress concentration. The cross-arranged arrangement can enhance the interlocking friction with the soil and concrete substrate, restrain the lateral deformation of the backfill soil, and further improve the anti-sliding and anti-overturning capabilities, making it suitable for complex working conditions such as high slopes and earthquakes. Attached Figure Description

[0023] The invention will now be further described with reference to the accompanying drawings.

[0024] Figure 1 This is a schematic diagram of the overall structure of a combined counterweight retaining wall and its construction method;

[0025] Figure 2 This is a schematic diagram of the installation of the abutment plate in a composite counterweight retaining wall and its construction method.

[0026] Figure 3 This is a schematic diagram of the installation of the snap-fit ​​block in a composite counterweight retaining wall and its construction method.

[0027] Figure 4 This is a schematic diagram of the installation of the clamping sleeve in a combined counterweight retaining wall and its construction method.

[0028] Figure 5 This is a schematic diagram of the installation of reinforcing bar A in a composite counterweight retaining wall and its construction method.

[0029] Figure 6 This is a schematic diagram of the installation of honeycomb cylinders in a combined counterweight retaining wall and its construction method.

[0030] Figure 7 A schematic diagram of the grid structure in a composite counterweight retaining wall and its construction method;

[0031] Figure 8 This is a schematic diagram of the diversion channel plate in a combined counterweight retaining wall and its construction method.

[0032] Figure 9 This is a cross-sectional schematic diagram of the bearing cylinder in a composite counterweight retaining wall and its construction method.

[0033] In the diagram: 1. Retaining wall; 2. Curved plate; 3. A reinforcing rib; 4. B reinforcing rib; 5. Connecting plate; 6. Connecting block; 7. Clip-on block; 8. Mounting block; 9. Clip; 10. Connecting rod; 11. Bearing; 12. Limiting rod; 13. A nut; 14. Extrusion rod; 15. Pressure bearing cylinder; 16. Buffer pad; 17. Spring; 18. Guide block; 19. Frame; 20. Honeycomb block; 21. Abutment plate; 22. Support plate; 23. Support rod; 24. Sleeve; 25. A fixing bolt; 26. Positioning block; 27. B nut; 28. B fixing bolt; 29. ​​C nut; 30. Grid mesh; 31. Base plate; 32. Drainage channel plate; 33. Threaded rod. Detailed Implementation

[0034] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0035] Reference Figure 1 - Figure 9 This invention provides two technical solutions: Example 1:

[0036] A composite counterweight retaining wall includes a retaining wall 1. A snap-fit ​​assembly mechanism is fixedly connected to the side of the retaining wall 1. An arc-shaped plate 2 is fixedly connected to the front of the retaining wall 1. An anti-compression mechanism is fixedly connected to the inner wall of the arc-shaped plate 2. The surface of the arc-shaped plate 2 has slots. A reinforcing ribs 3 are fixedly installed inside the slots. B reinforcing ribs 4 are staggered and snap-fitted to the outer surface of the A reinforcing ribs 3. The A reinforcing ribs 3 and B reinforcing ribs 4 are arranged in a staggered linear array inside the slots on the surface of the arc-shaped plate 2. By adding A reinforcing ribs 3 and B reinforcing ribs 4 inside the arc-shaped plate 2, the staggered reinforcing ribs form a three-dimensional mesh structure, which can disperse the lateral pressure and compressive stress of the soil in all directions, avoid cracking and damage of the wall caused by local stress concentration. The staggered arrangement can enhance the interlocking friction with the soil and concrete substrate, restrain the lateral deformation of the backfill soil, and further improve the anti-sliding and anti-overturning capabilities, making it suitable for complex working conditions such as high slopes and earthquakes.

[0037] The snap-fit ​​assembly mechanism includes a connecting plate 5, one end of which is fixedly connected to the side of the retaining wall 1. A connecting block 6 is fixedly connected to the edge of the surface of the connecting plate 5. Both sides of the connecting block 6 are rotatably connected to snap-fit ​​blocks 7 via A-rotor rods. An installation block 8 is rotatably connected to the middle of the snap-fit ​​block 7 via B-rotor rods. A snap-fit ​​block 9 is fixedly connected to the inner wall of the snap-fit ​​block 7. A connecting rod 10 is fixedly connected to the back of the connecting plate 5. One end of the connecting rod 10 is fixedly connected to a limit rod 12 via a bearing 11. A nut 13 is threaded onto the outer surface of the limit rod 12. (The last sentence appears to be a separate, unrelated statement: "counterweight structure...") The self-weight stabilizing foundation combined with interlocking mechanical interlocking constraints forms a dual anti-sliding and anti-overturning system based on self-weight and interlocking. This system is more resistant to soil lateral pressure, earthquakes, or uneven settlement than a single structure. The interlocking assembly mechanism interlocks to form an integrated force-bearing structure, preventing block misalignment and slippage. Even if there is localized stress concentration, it will not cause a chain collapse, thus improving the structure's risk resistance. In addition, the interlocking blocks have very small gaps after being tightly interlocked. Together with the grid 30 and drainage channel plate 32, it can effectively prevent rainwater from seeping into the interior of the wall, avoid softening of backfill soil and soil erosion, and protect the stability of the counterweight platform and foundation. Example 2:

[0038] The anti-compression mechanism includes a compression rod 14, one end of which is fixedly connected to the inner wall of the arc-shaped plate 2. A pressure-bearing cylinder 15 is sleeved on the outer surface of the compression rod 14. A positioning cone A is fixedly connected to the bottom of the pressure-bearing cylinder 15. A buffer pad 16 is fixedly connected inside the pressure-bearing cylinder 15. A spring 17 is fixedly connected to one end of the buffer pad 16. One end of the spring 17 is fixedly connected to the other end of the compression rod 14. Guide blocks 18 are fixedly connected to both sides of the outer surface of the compression rod 14. A groove is opened on the surface of the pressure-bearing cylinder 15. The outer surface of the guide block 18 is slidably connected to the inside of the groove. The anti-compression mechanism can absorb the lateral compression energy of the soil and disperse the concentrated pressure to a larger force-bearing surface, preventing the counterweight platform and wall panel from cracking or sinking due to excessive local stress. The anti-compression mechanism can enhance the coordinated force bearing of the wall panel, counterweight platform and backfill soil, prevent the relative displacement of each module due to compression, and consolidate the overall stability of the counterweight foundation and the combined structure.

[0039] A frame 19 is fixedly connected to the back of the retaining wall 1. A honeycomb block 20 is embedded inside the frame 19. An abutment plate 21 is fixedly connected to the back of the frame 19. An adjustment mechanism is fixedly connected to the back of the abutment plate 21. Multiple honeycomb blocks 20 are arranged in a linear array inside the frame 19. The center of the honeycomb block 20 is hollow. The honeycomb block 20 has a hollow structure, which replaces part of the solid filler, greatly reducing the overall weight of the retaining wall 1 and reducing the pressure on the foundation. The hexagonal structure of the honeycomb block 20 has a natural compressive strength advantage. After assembly, it forms an overall load-bearing skeleton, which can disperse the lateral pressure of the soil and enhance the wall's resistance to compression and shear.

[0040] The adjustment mechanism includes a support plate 22, the surface of which is fixedly connected to the back of the abutment plate 21. Support rods 23 are threaded to both ends of the support plate 22 via threaded rods 33. A sleeve 24 is fixedly connected to the upper surface of the top of the support rod 23, and a positioning cone B is fixedly connected to the bottom of the support rod 23. A positioning block 26 is threadedly connected to the inside of the sleeve 24 via a fixing bolt A 25. A nut B 27 is threadedly connected to the outer surface of the fixing bolt A 25. A rubber pad is affixed to the bottom of the positioning block 26, and a threaded hole is formed on the upper surface of the positioning block 26. The internal threaded hole is connected to a B fixing bolt 28, and the external threaded surface of the B fixing bolt 28 is connected to a C nut 29. The adjustment mechanism can finely adjust the inclination angle of the retaining wall 1 according to the change of soil lateral pressure, optimize the force balance, avoid structural instability caused by long-term eccentric pressure, and prevent local stress concentration and cracks and damage caused by the mismatch between the fixed inclination angle and the actual force on the retaining wall 1. It can cope with the structural displacement caused by long-term effects such as soil creep and temperature deformation, release stress through fine adjustment, reduce fatigue damage, and delay the aging of the retaining wall 1.

[0041] A grid 30 is fixedly connected to the bottom of the connecting plate 5, and a base plate 31 is fixedly connected to the bottom of the grid 30. A drainage channel plate 32 is fixedly connected to the side of the base plate 31. The gaps between the retaining walls 1 after assembly are extremely small. With the grid 30 and drainage channel plate 32, rainwater can be effectively blocked from seeping into the interior of the wall, avoiding the decrease in shear strength caused by the increase in soil moisture content. The grid 30 can intercept soil particles. With the extremely small assembly gaps, the water and soil erosion channels formed by rainwater erosion are completely blocked, preventing the loss of backfill soil and protecting the stability of the counterweight platform and foundation. The drainage channel plate 32 guides rainwater to be quickly discharged from the surface of the retaining wall 1, avoiding rainwater retention and seepage in the retaining wall 1. At the same time, with the internal drainage mechanism, a dual drainage system of external discharge and internal guidance is formed, reducing the water pressure inside the retaining wall 1, avoiding excessive water pressure from squeezing the retaining wall 1 panel, reducing the generation of cracks, and further improving the structure's resistance to compression and deformation.

[0042] This invention also discloses a construction method for a composite counterweight retaining wall, which uses the aforementioned composite counterweight retaining wall and includes the following steps:

[0043] S1. Two sets of retaining walls 1 are assembled and installed using two sets of staggered and symmetrical snap-fit ​​assembly mechanisms. The two sets of snap-fit ​​blocks 7 are snapped together. Then, the limiting rod 12 is turned inward. The limiting rod 12 presses the connecting rod 10 through the bearing 11. When the connecting rod 10 is pressed and moved, it drives the connecting block 6 to move through the connecting plate 5. The connecting block 6 drives the snap-fit ​​block 7 to rotate through the A rotating rod and the B rotating rod. One end of the snap-fit ​​block 7 is tilted and pressed, so that the two sets of snap-fit ​​blocks 7 are assembled with the retaining wall 1 through the snap-fit ​​block 9. The A nut 13 is used to strengthen the fixation.

[0044] S2. Adjust the angle of the support rod 23 in the support plate 22 through the threaded rod 33, use the B positioning cone for initial positioning and strengthen the fixation, and then use the A fixing bolt 25 to adjust the angle between the sleeve 24 and the positioning block 26 to match the angle of the support plate 22 and the support rod 23. Use the B fixing bolt 28 to fix the positioning block 26 on the support plate 22.

[0045] S3. When retaining soil, the A reinforcing rib 3 and B reinforcing rib 4 in the arc plate 2 are used to strengthen the structure. When subjected to compression, the arc plate 2 is pressed against the compression rod 14. The compression rod 14 is compressed in the pressure cylinder 15 through the spring 17 and the buffer pad 16. The pressure cylinder 15 is positioned by the A positioning cone and then bears the pressure.

[0046] Working principle: When assembling the two sets of retaining walls 1, the two sets of interlocking blocks 7 are interlocked, and then the limiting rod 12 is turned inward. The limiting rod 12 presses the connecting rod 10 through the bearing 11. When the connecting rod 10 moves while being pressed, it drives the connecting block 6 to move through the connecting plate 5. The connecting block 6 drives the interlocking block 7 to rotate through the A rotating rod and the B rotating rod. One end of the interlocking block 7 is tilted and pressed, so that the two sets of interlocking blocks 7 are assembled with the interlocking block 9. The A nut 13 is used to strengthen the fixation, thus completing the assembly of the retaining wall 1. Then, the support... The support rod 23 is angled within the support plate 22 via the threaded rod 33. Initial positioning is achieved using the B-positioning cone for reinforcement. Then, the angle between the sleeve 24 and the positioning block 26 is adjusted using the A-fixing bolt 25 to match the angles of the support plate 22 and the support rod 23. Finally, the positioning block 26 is fixed to the support plate 22 using the B-fixing bolt 28, preventing the support rod 23 from slipping and affecting the support effect. During soil retention, the A-reinforcing ribs 3 and B-reinforcing ribs 4 within the arc-shaped plate 2 enhance stability. The staggered reinforcing ribs form a three-dimensional mesh structure, which can... The lateral pressure and compressive stress of the soil are dispersed in all directions, avoiding wall cracking and damage caused by localized stress concentration. The staggered arrangement enhances the interlocking friction with the soil and concrete substrate, restrains the lateral deformation of the backfill soil, and further improves the anti-sliding and anti-overturning capabilities. When subjected to compression, the arc-shaped plate 2 presses against the compression rod 14, which is then compressed within the pressure-bearing cylinder 15 via the spring 17 and the buffer pad 16. The pressure-bearing cylinder 15 bears pressure after being positioned by the A positioning cone. The anti-compression mechanism absorbs the lateral compressive energy of the soil. Concentrated pressure is distributed to a larger load-bearing surface to prevent cracking and denting of the counterweight platform and wall panels due to excessive local stress. The anti-compression mechanism can enhance the synergistic force bearing of the wall panels, counterweight platform and backfill soil, and prevent relative displacement of each module due to compression. This consolidates the overall stability of the counterweight foundation and the combined structure. Subsequently, the gaps between the assembled retaining walls 1 are extremely small. Together with the grid 30 and the drainage channel plate 32, they can effectively prevent rainwater from seeping into the interior of the wall, avoid softening of the backfill soil and soil erosion, and protect the stability of the counterweight platform and foundation.

[0047] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1Based on the perspective of the observer, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0048] In the description of this invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this invention.

[0049] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A composite counterweight retaining wall, characterized in that: The retaining wall (1) is fixedly connected to the side of the retaining wall (1) with a snap-fit ​​assembly mechanism. The front of the retaining wall (1) is fixedly connected to an arc plate (2). The inner side wall of the arc plate (2) is fixedly connected to an anti-compression mechanism. The surface of the arc plate (2) is provided with a slot. A reinforcing rib (3) is fixedly installed inside the slot. B reinforcing rib (4) is staggered and snapped onto the outer surface of the A reinforcing rib (3). The A reinforcing rib (3) and B reinforcing rib (4) are arranged in a staggered linear array inside the slot on the surface of the arc plate (2). The snap-fit ​​assembly mechanism includes a connecting plate (5), one end of which is fixedly connected to the side of the retaining wall (1). A connecting block (6) is fixedly connected to the edge of the surface of the connecting plate (5). Both sides of the connecting block (6) are rotatably connected to snap-fit ​​blocks (7) via A rotating rods. An installation block (8) is rotatably connected to the middle of the snap-fit ​​block (7) via B rotating rods. A snap-fit ​​block (9) is fixedly connected to the inner side wall of the snap-fit ​​block (7). A connecting rod (10) is fixedly connected to the back of the connecting plate (5). One end of the connecting rod (10) is fixedly connected to a limit rod (12) via a bearing (11). A nut (13) is threadedly connected to the outer surface of the limit rod (12). The anti-compression mechanism includes a compression rod (14), one end of which is fixedly connected to the inner wall of the arc plate (2). A pressure-bearing cylinder (15) is sleeved on the outer surface of the compression rod (14). A positioning cone A is fixedly connected to the bottom of the pressure-bearing cylinder (15). A buffer pad (16) is fixedly connected inside the pressure-bearing cylinder (15). A spring (17) is fixedly connected to one end of the buffer pad (16). One end of the spring (17) is fixedly connected to the other end of the compression rod (14). Guide blocks (18) are fixedly connected to both sides of the outer surface of the compression rod (14). A sliding groove is opened on the surface of the pressure-bearing cylinder (15). The outer surface of the guide block (18) is slidably connected to the inside of the sliding groove. The back of the retaining wall (1) is fixedly connected to a frame (19), and a honeycomb block (20) is embedded inside the frame (19). The back of the frame (19) is fixedly connected to an abutment plate (21), and an adjustment mechanism is fixedly connected to the back of the abutment plate (21). The honeycomb blocks (20) are multiple and arranged in a linear array inside the frame (19), and the middle part of the honeycomb blocks (20) is hollow; The bottom of the connecting plate (5) is fixedly connected to a grid (30), the bottom of the grid (30) is fixedly connected to a base plate (31), and the side of the base plate (31) is fixedly connected to a drainage channel plate (32).

2. A combined counterweight retaining wall according to claim 1, characterized in that: The adjustment mechanism includes a support plate (22), the surface of which is fixedly connected to the back of the abutment plate (21). Both ends of the support plate (22) are threadedly connected to a support rod (23) via a threaded rod (33). A sleeve (24) is fixedly connected to the upper surface of the top of the support rod (23), and a B positioning cone is fixedly connected to the bottom of the support rod (23).

3. A combined counterweight retaining wall according to claim 2, characterized in that: The inside of the sleeve (24) is threadedly connected to a positioning block (26) via a fixing bolt (25) A. The outer surface of the fixing bolt (25) is threadedly connected to a nut (27) B. A rubber pad is attached to the bottom of the positioning block (26).

4. A combined counterweight retaining wall according to claim 3, characterized in that: The upper surface of the positioning block (26) is provided with a threaded hole, and the inside of the threaded hole is connected to a B fixing bolt (28), and the outer surface of the B fixing bolt (28) is connected to a C nut (29).

5. A construction method for a composite counterweight retaining wall, wherein the method employs the composite counterweight retaining wall described in claim 4, characterized in that: Includes the following steps: S1. Using two sets of interlocking and symmetrical snap-fit ​​assembly mechanisms, assemble and install two sets of retaining walls (1), snap the two sets of snap-fit ​​blocks (7) together, and then screw the limiting rod (12) inward. The limiting rod (12) squeezes the connecting rod (10) through the bearing (11). When the connecting rod (10) is squeezed and moved, it drives the connecting block (6) to move through the connecting plate (5). The connecting block (6) drives the snap-fit ​​block (7) to rotate through the A rotating rod and the B rotating rod. One end of the snap-fit ​​block (7) is tilted and squeezed, so that the two sets of snap-fit ​​blocks (7) assemble the retaining wall (1) through the snap-fit ​​block (9), and use the A nut (13) to strengthen the fixation. S2. Adjust the angle of the support rod (23) in the support plate (22) through the threaded rod (33), use the B positioning cone for initial positioning and strengthen the fixation, and then use the A fixing bolt (25) to adjust the angle between the sleeve (24) and the positioning block (26) to match the angle of the support plate (22) and the support rod (23), and use the B fixing bolt (28) to fix the positioning block (26) on the support plate (22); S3. When retaining soil, the A reinforcing rib (3) and B reinforcing rib (4) in the arc plate (2) are used to strengthen the solidity. When it is squeezed, the arc plate (2) is squeezed on the compression rod (14). The compression rod (14) is squeezed in the pressure cylinder (15) through the spring (17) and the buffer pad (16). The pressure cylinder (15) is positioned by the A positioning cone and then bears the pressure.

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