Retaining wall structure

Abstract

The invention relates to the field of civil engineering, in particular to a retaining wall structure which comprises a wall panel, a base platform and a buttress, the wall panel is provided with a soil leaning face and a soil backing face which are oppositely distributed, the base platform is fixed to the lower end of the wall panel, the buttress is fixed to the soil leaning face of the wall panel, and a primary fixing assembly is arranged on the soil backing face of the wall panel. The primary fixing assembly is connected with an anchor rod set, one end of the anchor rod set penetrates through the wall panel to be connected with an anchoring plate, the plane where the anchoring plate is located is perpendicular to the anchor rod set, and the part, extending into the soil layer, of the anchor rod set is further provided with a buffering assembly. Through cooperative arrangement of the anchor rod set, the primary fixing assembly and the anchor plate, one end of the anchor rod set is fixed to the wall panel, the other end of the anchor rod set extends into the soil layer, the connecting strength of the wall panel and the soil layer is improved, and the retaining wall has better impact resistance; the stability of the whole structure is improved.

Description

Technical Field

[0001] The present application relates to the technical field of civil engineering, and in particular to a retaining wall structure. Background Art

[0002] As a common civil engineering structure, retaining wall is mainly used to prevent earth collapse and maintain soil stability. Traditional retaining wall structures usually include wall panels, abutments and buttresses, which work together to withstand soil pressure. However, in the long-term practical process, traditional retaining wall structures are easily affected by the impact force of the soil layer, resulting in decreased structural stability and even safety accidents. Therefore, how to enhance the stability of the retaining wall structure and reduce the impact force of the soil layer on the wall panel has become a problem that needs to be solved urgently.

[0003] In the related technology, although some improvement measures such as increasing the thickness of the wall panel and reinforcing the base have been applied to improve the stability of the retaining wall, the effect of reducing the impact force of the soil layer is not significant. Therefore, it is of great practical significance to develop a new retaining wall structure that can maintain structural stability and effectively simplify the impact force of the soil layer. Summary of the invention

[0004] In order to enhance the impact resistance of a retaining wall and improve its structural stability, the present application provides a retaining wall structure.

[0005] The retaining wall structure provided in this application adopts the following technical solution:

[0006] A retaining wall structure comprises a wall panel, a base and a buttress plate, wherein the wall panel has a soil-facing surface and a soil-repelling surface that are relatively distributed, the base is fixed to the lower end of the wall panel, the buttress plate is fixed to the soil-facing surface of the wall panel, and a primary fixing component is arranged on the soil-repelling surface of the wall panel, the primary fixing component is connected to an anchor rod group, one end of the anchor rod group extends through the wall panel into the soil layer and is connected to an anchor plate, the plane where the anchor plate is located is perpendicular to the anchor rod group, and the portion of the anchor rod group extending into the soil layer is also provided with a buffer component, and the buffer component is used to mitigate the impact force of the soil layer on the wall panel.

[0007] By adopting the above technical solution, one end of the anchor rod group is connected to the wall panel via a primary fixing component, and the other end extends into the soil layer and is provided with an anchor plate. The anchor plate can increase the adhesion of the anchor rod group in the soil layer, thereby improving the adhesion of the wall panel connected to the anchor rod group. The setting of the buffer component can further reduce the impact force of the soil layer on the wall panel, thereby improving the structural stability and impact resistance of the retaining wall.

[0008] Optionally, the buffer assembly includes a mounting plate formed on the surface of the anchor rod group, in which a buffer rod is rotatably connected. The buffer assembly also includes an elastic steel component, which is arranged between the buffer rod and the anchor rod group to provide resistance to the rotation of the buffer rod toward a side away from the wall panel.

[0009] By adopting the above technical solution, in some extreme environments such as earthquakes or soil collapse, the wall panel is subjected to the impact force of the soil layer, which will drive the anchor rod group to tend to tilt away from the soil layer. At this time, the buffer rod tends to rotate relative to the anchor rod group, and the elastic steel member prevents the anchor rod group from rotating, thereby playing a buffering role. Compared with the existing technology, the overall impact resistance of the retaining wall is improved.

[0010] Optionally, the primary fixing assembly includes a beam pre-buried in the wall panel and perpendicular to the back soil surface, a pedestal fixed on the beam, and a pressure pad fixed on the pedestal, the pedestal and the pressure pad are both provided with mounting holes, and a fastener 1 is correspondingly provided at the mounting hole, and the anchor rod group is fixed to the pedestal by fastener 1.

[0011] By adopting the above technical solution, the pedestal is fixed on the beam to be connected with the wall panel, and the fastener fixes the anchor rod group on the pedestal, thereby connecting the wall panel to the anchor rod group. The pressure pad is set to play a buffering role, reduce the pressure on the pedestal, and extend the service life of the components.

[0012] Optionally, the base includes a wall toe plate and a wall heel plate connected to each other, one end of the wall toe plate extends to a side close to the back soil surface, one end of the wall heel plate extends to a side close to the soil surface, one side of the buttress plate is fixedly connected to the wall panel, and the other side is fixedly connected to the wall heel plate.

[0013] By adopting the above technical solution, the wall toe plate and the wall heel plate are arranged in cooperation to provide a stable foundation support for the wall panel and the buttress plate, and to increase the contact area between the retaining wall as a whole and the foundation, thereby improving stability and impact resistance.

[0014] Optionally, a cushion beam is embedded inside the wall panel, and a connecting rod extending vertically downward is connected to the bottom of the cushion beam. The connecting rod passes through the base and extends into the soil layer. A counterweight block is embedded in the soil layer, and the connecting rod is fixedly connected to the counterweight block.

[0015] By adopting the above technical solution, the arrangement of the cushion beam, connecting rod and counterweight block can move the center of gravity of the retaining wall as a whole downward, making the center of gravity closer to the foundation, and further improving the overall stability and impact resistance of the retaining wall.

[0016] Optionally, the anchor rod group includes two relatively distributed tie rods, the two tie rods are respectively arranged on both sides of the buttress plate, the buttress plate is provided with a secondary fixing assembly, the two tie rods are connected to the buttress plate through the secondary fixing assembly, and the buttress plate is arranged in the middle of the wall panel.

[0017] By adopting the above technical solution, the secondary fixing assembly connects the tie rod to the buttress plate, and the connection strength is improved by increasing the connection points between the anchor rod group and the retaining wall as a whole.

[0018] Optionally, the secondary fixing assembly includes a connecting plate, a locking sleeve and a second fastener, the connecting plate is pre-embedded in the buttress plate, the locking sleeve is formed on the connecting plate and is coaxially distributed with the pull rod, the second fastener is passed through the locking sleeve, and a locking hole is formed on the part of the pull rod extending into the locking sleeve, and the second fastener is screwed into the locking hole.

[0019] By adopting the above technical solution, the pull rod is inserted into the retracted sleeve, and when the second fastener is tightened in the locking hole, the pull rod can be firmly connected to the locking hole, thereby improving the overall connection strength between the anchor rod group and the retaining wall.

[0020] Optionally, the secondary fixing assembly further includes a reinforcing rib plate, which is disposed on the buttress plate and connected to the connecting plate to enhance the structural strength of the connecting plate.

[0021] By adopting the above technical solution, the arrangement of the reinforcing ribs is used to increase the structural strength between the buttress plate and the connecting plate, thereby preventing the connection between the connecting plate and the buttress plate from being damaged or broken.

[0022] Optionally, a through reserved hole is formed in the middle of the anchor plate, and a mounting sleeve is fixedly connected in the reserved hole. The mounting sleeve is coaxially distributed with the pull rod, and the pull rod extends through the mounting sleeve to one side of the anchor plate. A fastener three is screwed on the surface of the pull rod, and the fastener three connects the pull rod with the mounting sleeve.

[0023] By adopting the above technical solution, the anchor plate installation sleeve and the fastener are arranged in coordination, which improves the connection strength between the anchor plate and the tie rod to prevent the connection between the tie rod and the anchor plate from breaking when the soil layer exerts a large pressure on the tie rod.

[0024] Optionally, an accommodating cavity is reserved between the mounting sleeve and the pull rod, and an elastic telescopic part and a matching part are arranged in the accommodating cavity. One end of the elastic telescopic part is fixed to the inner wall of the telescopic sleeve, and the other end is connected to the matching part and extends toward the pull rod. A groove is formed on the surface of the pull rod, and the matching part is embedded in the groove.

[0025] By adopting the above technical solution, the coordinated arrangement of the elastic telescopic part, the matching part and the pull rod can transmit part of the external force to the elastic telescopic part through the pull rod to play a buffering role when the pull rod is subjected to external pressure, thereby improving the shear resistance of the connection between the pull rod and the anchor plate.

[0026] In summary, the present application includes at least one of the following beneficial technical effects:

[0027] 1. Through the coordinated arrangement of the anchor rod group, the primary fixing assembly and the anchor plate, one end of the anchor rod group is fixed on the wall panel, and the other end extends into the soil layer, thereby improving the connection strength between the wall panel and the soil layer as a whole, thereby making the retaining wall have better impact resistance. The secondary fixing assembly is used to improve the connection strength between the anchor rod group and the retaining wall, and improve the stability of the overall structure;

[0028] 2. Through the setting of the buffer assembly, since the elastic steel component has good elastic deformation ability, when the retaining wall is subjected to the impact force of the soil layer, the impact force is transmitted to the anchor rod group, so that the buffer rod tends to rotate away from the anchor rod group. At this time, the elastic steel component undergoes elastic deformation, thereby absorbing and dispersing the impact force, further protecting the retaining wall as a whole from damage;

[0029] 3. Through the matching arrangement of the mounting sleeve and the fastener three, the end of the pull rod extending toward the anchor plate passes through the mounting sleeve, and the fastener three is arranged at both ends of the mounting sleeve and connected to the pull rod to improve the connection strength between the pull rod and the anchor plate. In addition, the arrangement of the elastic telescopic portion and the matching portion can buffer the external pressure when the pull rod is subjected to external pressure, thereby improving the shear resistance of the connection between the pull rod and the anchor plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a side view cross-sectional structural schematic diagram of the overall embodiment of the present application.

[0031] Figure 2 It is a schematic diagram of the overall top-view cross-sectional structure of the embodiment of the present application.

[0032] Figure 3 It is another side view cross-sectional structural schematic diagram of the overall embodiment of the present application.

[0033] Figure 4 yes Figure 1 A schematic diagram of the enlarged structure at point A in the middle.

[0034] Figure 5 yes Figure 1 A magnified schematic diagram of the structure at point B in the middle.

[0035] Figure numerals: 1. wall panel; 2. base; 21. wall toe plate; 22. wall heel plate; 3. buttress plate; 4. primary fixing assembly; 41. crossbeam; 42. pedestal; 43. pressure pad; 44. fastener one; 5. anchor rod group; 51. pull rod; 6. anchor plate; 7. buffer assembly; 71. mounting plate; 72. buffer rod; 73. elastic steel member; 8. pad beam; 9. connecting rod; 10. counterweight; 11. secondary fixing assembly; 111. connecting plate; 112. locking sleeve; 113. fastener two; 114. reinforcing rib plate; 12. drain pipe; 13. geotextile; 14. filter layer; 15. mounting sleeve; 16. fastener three; 17. elastic telescopic part; 18. matching part. DETAILED DESCRIPTION

[0036] The following is combined with Figure 1-5 This application is described in further detail.

[0037] Example 1

[0038] The present application embodiment discloses a retaining wall structure. Figure 1 The invention aims to enhance the connection stability between the retaining wall and the soil layer, and at the same time reduce the impact force of the soil layer on the wall panel, thereby improving the service life and safety of the retaining wall. A retaining wall structure includes a wall panel 1, a base 2 and a buttress plate 3, and a series of fixing and buffering components 7.

[0039] Specifically, the wall panel 1, as the main part bearing soil pressure, stands vertically on the foundation. The wall panel 1 has a relatively distributed soil-facing surface and a soil-repelling surface. It can be understood that the soil-facing surface is the side of the wall panel 1 that contacts the soil layer and directly bears the soil layer pressure; the soil-repelling surface is the other side opposite to the surface. The base 2 is fixed to the lower end of the wall panel 1. The base 2 is generally a horizontal plate-like structure. The wall panel 1 is fixed on the base 2. The base 2 can be further divided into a wall toe plate 21 and a wall heel plate 22. One end of the wall toe plate 21 is connected to the wall heel plate 22. The connection point between the wall panel 1 and the base 2 is located at the connection between the wall toe plate 21 and the wall heel plate 22.

[0040] Furthermore, the end of the wall toe plate 21 away from the wall panel 1 extends to the side close to the soil surface, and the end of the wall heel plate 22 away from the wall panel 1 extends to the side close to the soil surface. And the length of the wall heel plate 22 is greater than the length of the wall toe plate 21, so that the lower end of the retaining wall as a whole can be deeper into the soil layer, thereby improving its stability.

[0041] Reference Figure 1 and Figure 2On the back soil surface of the wall panel 1, a primary fixing assembly 4 is specially arranged, and the primary fixing assembly 4 is connected to an anchor rod group 5, and one end of the anchor rod group 5 passes through the wall panel 1 and extends into the soil layer and is connected to an anchor plate 6, and the plane where the anchor plate 6 is located is perpendicular to the anchor rod group 5. This structure improves the overall grip of the retaining wall on the soil layer, thereby improving its performance in resisting the impact force of the soil layer.

[0042] In more detail, the portion of the anchor rod group 5 extending into the soil layer is also equipped with a buffer assembly 7. The main function of this buffer assembly 7 is to mitigate the impact force of the soil layer on the wall panel 1. Specifically, the buffer assembly 7 includes a mounting plate 71 and a buffer rod 72. The mounting plate 71 is arranged on the surface of the anchor rod group 5, and the buffer rod 72 is rotatably connected in the mounting plate 71. In this embodiment, the mounting plate 71 may be composed of two metal plates distributed up and down, the anchor rod group 5 passes through between the two metal plates and is welded to the two metal plates, the buffer rod 72 is also arranged between the two metal plates and is rotatably connected to the two, and the buffer rod 72 and the anchor rod group 5 form a certain angle, and an elastic steel member 73 is arranged in the space formed by the angle, and the elastic steel member 73 can provide resistance to the buffer rod 72 when it rotates.

[0043] With the above structure, when the retaining wall is subjected to the impact force of the soil layer, the wall panel 1 tends to fall away from the soil layer. Under the action of the primary fixing assembly 4, the wall panel 1 applies a pulling force away from the soil layer to the anchor rod group 5. When the anchor rod group 5 is subjected to the pulling force, it tends to move out of the soil layer, thereby driving the buffer rod 72 to move out of the soil layer. At this time, the soil layer will apply a resistance to the buffer rod 72 to prevent the buffer rod 72 from moving outward, thereby preventing the anchor rod group 5 from moving outward, thereby preventing the wall panel 1 from falling away from the soil layer. In addition, when the soil layer applies resistance to the buffer rod 72, the buffer rod 72 actually tends to rotate relative to the anchor rod group 5. The elastic steel member 73 will resist the rotation trend, absorb and disperse the external force on the buffer rod 72, thereby avoiding problems such as fracture between the buffer rod 72 and the anchor rod group 5 or reduction in structural strength.

[0044] Furthermore, the structure of the primary fixing assembly 4 is also carefully designed. It includes a crossbeam 41 pre-buried in the wall panel 1 and perpendicular to the backing soil surface. This crossbeam 41 provides a solid foundation for the entire fixing structure. A pedestal 42 is fixed on the crossbeam 41, and a pressure pad 43 is fixed on the pedestal 42. Mounting holes are provided on the pedestal 42 and the pressure pad 43. These mounting holes are correspondingly provided with fasteners 44. One end of the anchor rod group 5 passes through the mounting hole and is firmly fixed on the pedestal 42 through the fastener 44.

[0045] Example 2

[0046] Based on Example 1, this example further provides other preferred details of the retaining wall structure. Figure 2 and Figure 3 In particular, a cushion beam 8 is embedded in the wall panel 1. This cushion beam 8 not only enhances the structural strength of the wall panel 1, but also has a connecting rod 9 extending vertically downward at its bottom. This connecting rod 9 extends through the base 2 into the soil layer and is fixedly connected to a counterweight 10 embedded in the soil layer. This design further enhances the stability of the retaining wall by adding counterweight.

[0047] In addition, the anchor rod group 5 is specifically configured to consist of two parallel and spaced apart tie rods 51, the mounting plate 71 is fixed on the two tie rods 51, and a buffer rod 72 is rotatably connected to both sides of the mounting plate 71, the two buffer rods 72 are respectively cooperated with the two tie rods 51, and are symmetrically distributed along the center line of the two tie rods 51.

[0048] On this basis, refer to Figure 4 In Embodiment 2, a secondary fixing assembly 11 is further provided on the buttress plate 3, which is used to connect with the tie rod 51 in the anchor rod group 5. Specifically, the buttress plate 3 is provided in the middle of the wall panel 1, and the two tie rods 51 are respectively located on both sides of the buttress plate 3. The secondary fixing assembly 11 includes a connecting plate 111 pre-buried in the buttress plate 3, and a locking sleeve 112 formed on the connecting plate 111 and coaxially distributed with the tie rod 51. The plane where the connecting plate 111 is located is perpendicular to the buttress plate 3, and both ends of the connecting plate 111 extend to both sides of the buttress plate 3. Two locking sleeves 112 are correspondingly provided and are respectively formed integrally at both ends of the connecting plate 111. A second fastener 113 is penetrated on the locking sleeve 112, and a locking hole is opened on the portion of the tie rod 51 extending into the locking sleeve 112. The second fastener 113 can be screwed into the locking hole, thereby ensuring a firm connection between the tie rod 51 and the buttress plate 3.

[0049] It is worth mentioning that the secondary fixing assembly 11 also includes a reinforcing rib 114 , which is pre-embedded in the buttress plate 3 and connected to the connecting plate 111 , in order to enhance the structural strength of the connecting plate 111 .

[0050] Further, refer to Figure 5 The following connection structure is preferably adopted between the tie rod 51 and the anchor plate 6. A reserved hole is formed in the middle of the anchor plate 6, and a mounting sleeve 15 is arranged in the reserved hole. The mounting sleeve 15 is hollow inside and closed at both ends. Through holes are respectively opened on the two end surfaces of the mounting sleeve 15. The end of the tie rod 51 close to the anchor plate 6 extends to one side of the anchor plate 6 through the two through holes in sequence.

[0051] At least two fasteners 3 16 are screwed on the surface of the tie rod 51, and the two fasteners 3 16 are respectively located at the two end surfaces of the mounting sleeve 15. By rotating the fasteners 3 16 until they are in close contact with the two end surfaces of the mounting sleeve 15, the connection effect between the tie rod 51 and the anchor plate 6 can be improved. Compared with directly welding the tie rod 51 to one side of the anchor plate 6, it has higher shear strength.

[0052] Furthermore, an accommodating cavity is reserved between the inside of the mounting sleeve 15 and the pull rod 51, and an elastic telescopic portion 17 and a matching portion 18 are arranged in the accommodating cavity, wherein a plurality of elastic telescopic portions 17 are provided, and the plurality of elastic telescopic portions 17 are arranged around the outside of the pull rod 51, and one end of each elastic telescopic portion 17 is fixedly connected to the inner wall of the mounting sleeve 15, and the other end is radially close to the pull rod 51, and the matching portion 18 is fixedly arranged at one end of the elastic telescopic portion 17 close to the pull rod 51.

[0053] A groove is provided on the surface of the pull rod 51, and the end of the matching part 18 away from the elastic telescopic part 17 is embedded in the groove, and abuts against the pull rod 51 under the action of the elastic telescopic part 17. When the pull rod 51 is subjected to pressure from the soil layer, part of the pressure is transmitted to the elastic telescopic part 17 through the pull rod 51, and the elastic telescopic part 17 can absorb it to play a buffering role, thereby reducing the force of the pull rod 51 on the anchor plate 6 and improving the connection strength between the two. Preferably, the elastic telescopic part 17 adopts a micro damper, and the matching part 18 is a block structure made of steel material. The side of the matching part 18 facing the pull rod 51 matches the shape of the groove, and can be arc-shaped, square or other shapes, which are not limited here.

[0054] Example 3

[0055] Based on Example 1 and Example 2, this example further provides other preferred details of the retaining wall structure. Figure 1 A hole is reserved inside the wall panel 1 and runs through the soil surface and the soil back surface. A drainage pipe 12 is embedded in the hole. Both ends of the drainage pipe 12 are open to allow the water in the soil layer to be discharged outward through the inside, thereby preventing the water from seeping into the retaining wall. It is understandable that the end of the drainage pipe 12 facing the soil layer should be covered with a geotextile 13 to prevent soil particles from entering the drainage pipe 12 and causing blockage, thereby affecting the drainage efficiency.

[0056] In coordination with this, a filter layer 14 is also provided on the side of the wall panel 1 close to the soil surface. The filter layer 14 is specifically composed of 2-4 layers of materials such as sand, gravel or pebbles with different particle sizes. The particles gradually increase in size along the direction of water flow. The particles of any layer are not allowed to pass through the pores of the adjacent coarser layer, and the particles of the same layer cannot move relative to each other. After the filter layer 14 is provided, when the infiltrated water in the soil layer flows out through the drain pipe 12, it will not take away the soil particles in the soil layer, thereby preventing the occurrence of pipe bursts and soil flow.

[0057] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A retaining wall structure, comprising a wall panel (1), a base (2) and a buttress plate (3), wherein the wall panel (1) has a soil-facing surface and a soil-removing surface that are relatively distributed, the base (2) is fixed to the lower end of the wall panel (1), and the buttress plate (3) is fixed to the soil-facing surface of the wall panel (1), characterized in that: A primary fixing assembly (4) is arranged on the back-to-soil surface of the wall panel (1), the primary fixing assembly (4) is connected to an anchor rod assembly (5), one end of the anchor rod assembly (5) passes through the wall panel (1) and extends into the soil layer and is connected to an anchor plate (6), the plane where the anchor plate (6) is located is perpendicular to the anchor rod assembly (5), and a buffer assembly (7) is also arranged on the portion of the anchor rod assembly (5) extending into the soil layer, the buffer assembly (7) being used to mitigate the impact force of the soil layer on the wall panel (1).

2. A retaining wall structure according to claim 1, characterized in that: The buffer assembly (7) comprises a mounting plate (71) formed on the surface of the anchor rod group (5), a buffer rod (72) being rotatably connected inside the mounting plate (71), and the buffer assembly (7) further comprises an elastic steel component (73), the elastic steel component (73) being arranged between the buffer rod (72) and the anchor rod group (5) and being used to provide resistance to the rotation of the buffer rod (72) toward a side away from the wall panel (1).

3. A retaining wall structure according to claim 1, characterized in that: The primary fixing assembly (4) comprises a crossbeam (41) pre-buried in the wall panel (1), a pedestal (42) fixed on the crossbeam (41), and a pressure-bearing pad (43) fixed on the pedestal (42), the pedestal (42) and the pressure-bearing pad (43) both having mounting holes, and a fastener 1 (44) corresponding to the mounting hole, and the anchor rod group (5) is fixed to the pedestal (42) by the fastener 1 (44).

4. A retaining wall structure according to claim 1, characterized in that: The base (2) comprises a wall toe plate (21) and a wall heel plate (22) connected to each other, one end of the wall toe plate (21) extends to a side close to the back soil surface, and one end of the wall heel plate (22) extends to a side close to the soil surface; one side of the buttress plate (3) is fixedly connected to the wall panel (1), and the bottom is fixedly connected to the wall heel plate (22).

5. The retaining wall structure according to claim 1, characterized in that: A cushion beam (8) is embedded inside the wall panel (1); a connecting rod (9) extending vertically downward is connected to the bottom of the cushion beam (8); the connecting rod (9) passes through the base (2) and extends into the soil layer; a counterweight block (10) is embedded in the soil layer; the connecting rod (9) is fixedly connected to the counterweight block (10).

6. A retaining wall structure according to claim 1, characterized in that: The anchor rod group (5) comprises two relatively distributed tie rods (51), the two tie rods (51) are respectively arranged on both sides of the buttress plate (3), a secondary fixing component (11) is arranged on the buttress plate (3), the two tie rods (51) are connected to the buttress plate (3) via the secondary fixing component (11), and the buttress plate (3) is arranged in the middle of the wall panel (1).

7. A retaining wall structure according to claim 6, characterized in that: The secondary fixing assembly (11) comprises a connecting plate (111), a locking sleeve (112) and a second fastener (113); the connecting plate (111) is pre-buried in the buttress plate (3); the locking sleeve (112) is formed on the connecting plate (111) and is coaxially distributed with the pull rod (51); the second fastener (113) is passed through the locking sleeve (112); a locking hole is provided in the portion of the pull rod (51) extending into the locking sleeve (112); the second fastener (113) is screwed into the locking hole.

8. A retaining wall structure according to claim 7, characterized in that: The secondary fixing assembly (11) further comprises a reinforcing rib plate (114), wherein the reinforcing rib plate (114) is arranged on the buttress plate (3) and connected to the connecting plate (111) so as to enhance the structural strength of the connecting plate (111).

9. The retaining wall structure according to claim 6, characterized in that: A through reserved hole is formed in the middle of the anchor plate (6), and a mounting sleeve (15) is fixedly connected in the reserved hole. The mounting sleeve (15) is coaxially distributed with the pull rod (51), and the pull rod (51) passes through the mounting sleeve (15) and extends to one side of the anchor plate (6). A fastener three (16) is screwed onto the surface of the pull rod (51), and the fastener three (16) connects the pull rod with the mounting sleeve (15).

10. A retaining wall structure according to claim 9, characterized in that: An accommodating cavity is reserved between the installation sleeve (15) and the pull rod (51), and an elastic telescopic portion (17) and a matching portion (18) are arranged in the accommodating cavity. One end of the elastic telescopic portion (17) is fixed to the inner wall of the telescopic sleeve (15), and the other end is connected to the matching portion (18) and extends toward the pull rod (51). A groove is formed on the surface of the pull rod (51), and the matching portion (18) is embedded in the groove.

Images