Modularized recyclable energy dissipation and shock absorption retaining wall and using method thereof

Abstract

The invention discloses a modular recyclable energy dissipation and shock absorption retaining wall and a using method thereof, and belongs to the technical field of slope protection. The retaining wall comprises a retaining wall steel frame and a supporting arm supporting module fixedly supported on the inner side of the retaining wall steel frame, the retaining wall steel frame is of a detachable steel frame structure, and the retaining wall steel frame comprises a foundation module, a front center wall module, a left corner wall module, a right corner wall module, a left side wall module, a right side wall module and a top cover plate module. Rubber shock pads are arranged at the joints of the modules of the retaining wall steel frame, and the modules are spliced and connected through bolts. The modular design is adopted, each wall frame is of a detachable steel frame structure, the construction efficiency is effectively improved, meanwhile, the wall body defined by the three wall bodies can be filled with ore or muck on a construction site, enough friction force between the retaining wall foundation and a foundation is guaranteed, the stability of the retaining wall is guaranteed, and the retaining wall is convenient to construct. And the problem that the landscape coordination is damaged by a large-area masonry structure can be effectively solved.

Description

Technical Field

[0001] The present invention relates to the technical field of slope protection, and in particular to a modular and recyclable energy dissipation and shock absorption retaining wall and a use method thereof. Background Art

[0002] In existing retaining wall technology, two types of retaining walls are widely used: cast-in-place concrete retaining walls and steel retaining walls. Cast-in-place concrete retaining walls have a long history of use, are relatively mature in technology, and are readily available, making them widely adopted. However, traditional cast-in-place concrete retaining walls suffer from low construction efficiency, the generation of construction waste, dust, and noise, high carbon emissions, and poor ecological compatibility. Therefore, traditional cast-in-place concrete retaining walls are at odds with current global carbon reduction goals. In addition to concrete retaining walls, another widely used retaining wall structure in the ore crushing industry is steel retaining walls. While steel retaining walls address the challenges of concrete retaining walls in terms of construction efficiency, carbon emissions, and poor ecological compatibility, they still have some drawbacks due to their inherent material properties. For example, steel structures require high corrosion protection requirements, are prone to rusting in humid environments, are prone to structural resonance during construction, and have a lower fire resistance than concrete, requiring additional fire retardant coating. Therefore, the field of slope protection technology urgently needs a retaining wall that meets the current needs and addresses these shortcomings.

[0003] In response to the above shortcomings, a modular and recyclable energy dissipation and shock absorption retaining wall and its use method are proposed. Summary of the Invention

[0004] The purpose of this invention is to utilize a reusable modular steel frame structure for the retaining wall, allowing the size and working surface of the retaining wall to be freely adjusted according to the actual on-site engineering needs. Furthermore, the modular design facilitates construction and improves efficiency. The cavity enclosed by the three steel retaining walls can be filled with ore or slag, ensuring sufficient friction between the retaining wall foundation and the subsoil. This effectively addresses the issue of large-scale masonry structures disrupting the harmony of the landscape. The introduction of rubber shock-absorbing pads and adaptively adjustable damping arm support modules facilitates energy dissipation and vibration reduction, reducing the risk of collapse of the steel retaining wall due to high-frequency vibration.

[0005] To achieve the above-mentioned objectives, the present invention provides a modular, recyclable energy-dissipating and shock-absorbing retaining wall, comprising a retaining wall steel frame and an arm support module fixedly supported on the inner side of the retaining wall steel frame. The retaining wall steel frame adopts a detachable steel frame structure. The retaining wall steel frame comprises: a basic module, a front center wall module, a left corner wall module, a right corner wall module, a left wall module, a right wall module and a top cover module. Rubber shock-absorbing pads are provided at the connections between the modules of the retaining wall steel frame, and are all assembled and connected with bolts. The top cover module is fixedly installed on the top of the left wall module, the front center wall module and the right wall module.

[0006] Preferably, the basic module includes an H-shaped frame beam, a base plate and an armrest beam ear plate for fixedly connecting the armrest support module, and the base plate and the armrest beam ear plate are welded and fixedly connected to the top of the H-shaped frame beam.

[0007] Preferably, the front center wall module includes a first variable-section H-shaped steel column, a first H-shaped steel column arranged in the middle position of the first variable-section H-shaped steel column, a ground connecting beam, and a cross beam for welding and fixing the connection. The ground connecting beam is fixedly installed at the bottom of the first variable-section H-shaped steel column. The first H-shaped steel column and the ground connecting beam are connected to the arm support module through the arm beam ear plate. The top of the first variable-section H-shaped steel column is provided with a cantilevered cover beam for fixedly connecting the top cover module. The connection ends of the front center wall module are fixedly connected through the rubber shock-absorbing pads. The rubber shock-absorbing pads are made of rubber material with a small compression deformation rate and a large damping coefficient.

[0008] Preferably, the left corner wall module and the right corner wall module are fixedly connected to the left and right ends of the front center wall module respectively, and the left corner wall module and the right corner wall module adopt a symmetrical structure, including a second variable-section H-shaped steel column, a second H-shaped steel column, a second anchor beam and two cross beams for welding and fixing the connection, the second H-shaped steel column and the second anchor beam are connected to the arm support module through the arm beam ear plate, the top of the second variable-section H-shaped steel column is beveled at a 45° port and a node plate is provided at the opening, the node plate is fixedly connected to the top cover plate module by bolts, and the other side of the second variable-section H-shaped steel column is provided with a cantilever cover plate beam two for fixedly connecting the top cover plate module.

[0009] Preferably, the left wall module and the right wall module are fixedly installed on both sides of the retaining wall steel frame with a symmetrical structure, including a third variable-section H-shaped steel column, three anchor beams and three cross beams for welding and fixing the connection. The third variable-section H-shaped steel column and the three anchor beams are connected to the arm support module through the arm beam ear plate. The top of the third variable-section H-shaped steel column is beveled at a 45° port and a node plate is provided at the opening. The node plate is fixedly connected to the top cover module by bolts.

[0010] Preferably, the top cover module includes a frame beam and an end beam for fixed connection, the end beam is welded and fixed to one side of the frame beam, the end beam is inclined 45 degrees relative to the plane of the frame beam, bolt holes are provided on the web of the end beam, and a panel is provided on the upper surface of the frame beam.

[0011] Preferably, the armrest support module includes an adaptive damping adjustment top support arm and a connecting ear plate, the adaptive damping adjustment top support arm and the connecting ear plate are welded and fixed to both ends of the adaptive damping adjustment top support arm, the connecting ear plate is connected to the armrest beam ear plate by bolts, and the inner cavity of the adaptive damping adjustment top support arm is filled with silicone-based hydraulic oil with a certain damping, and the damping force can respond in real time and adaptively adjust according to the actual external load.

[0012] Preferably, the basic module, the front center wall module, the left corner wall module, the right corner wall module, the left wall module, the right wall module and the top cover module are assembled into three walls, and a sealing plate is laid on the inner side of the wall.

[0013] Preferably, the surface of the steel components of the retaining wall steel frame is hot-dip galvanized, the zinc layer thickness is ≥80μm, and the outside is coated with epoxy fire retardant paint, and the fire resistance limit is ≥1.5 hours.

[0014] A method for using a modular and recyclable energy dissipation and shock-absorbing retaining wall comprises the following steps:

[0015] S1: Leveling the site before slope protection is required, the site is based on the actual project needs;

[0016] S2: Laying the foundation modules flat, arranging the foundation modules in parallel according to the direction of the slope, leveling and installing them;

[0017] S3: Fix and install the central wall module, place the central wall module on the front side of the slope, connect the first anchor beam of the front central wall module and the foundation module with bolts, then install the arm support module between the front central wall module and the foundation module, align the upper and lower connecting ear plates of the arm support module with the arm beam ear plates on the front central wall module and the foundation module, and fix the two with bolts;

[0018] S4: Install the left and right wall modules, place the left and right wall modules on the side of the slope, and respectively connect the anchor beams 3 and the foundation module in the left and right wall modules with bolts. Then, install the arm support module between the left and right wall modules and the foundation module, align the upper and lower connecting ear plates of the arm support module with the arm beam ear plates on the left and right wall modules and the foundation module, and fix the arm support module with bolts.

[0019] S5: Install the left and right corner wall modules. Place the left and right corner wall modules on the side of the slope. Connect the second anchor beams of the left and right corner wall modules to the front center wall module, the left wall module, the right wall module, and the foundation module respectively with bolts. Then, install the arm support modules between the left and right corner wall modules and the foundation module. Align the upper and lower connecting lugs of the arm support modules with the arm beam lugs on the left and right corner wall modules and the foundation module, and secure the arm support modules with bolts.

[0020] S6: Install the top cover module, and use bolts to sequentially install the top cover module on the top of the front center wall module, the left wall module, the right wall module, the left corner wall module, and the right corner wall module;

[0021] S7: Fill the cavity of the retaining wall steel frame enclosed by three walls with a certain amount of ore, slag or backfill soil according to the site conditions to increase the static friction between the retaining wall and the foundation and prevent the retaining wall from overturning. When filling, adopt layered compaction, avoid the arm support module area, and reserve a 200mm operating gap;

[0022] S8: Check the installation integrity, stability and safety. Rubber shock-absorbing pads are fixed between the joints between each wall module. They can be used after they are firmly installed.

[0023] S9: After the project is completed, perform the above steps in reverse order to complete the dismantling of all retaining wall components for later recycling.

[0024] Therefore, compared with the prior art, the present invention has the following beneficial effects:

[0025] (1) The retaining wall of the present invention adopts a modular design. Each wall module is prefabricated in a factory to complete the production of standardized modules and is quickly assembled on site using bolts, which effectively improves construction efficiency.

[0026] (2) The interior of the wall formed by the three walls of the present invention can be filled with ore or slag from the construction site, which not only meets the needs of building waste landfill, but also provides sufficient gravity to the retaining wall itself, ensuring sufficient friction between the retaining wall foundation and the foundation, that is, ensuring the stability of the retaining wall, and can effectively solve the problem of large-scale masonry structures destroying the harmony of the landscape.

[0027] (3) The introduction of the rubber shock-absorbing pad and the adaptive damping adjustment top support arm in the present invention can work together to resist the damage caused by vibration to the structure. The rubber shock-absorbing pad can absorb high-frequency vibration (>10Hz), and the adaptive damping adjustment top support arm contains a viscous oil system that can dissipate low-frequency energy (0.5-10Hz), effectively improving the shock absorption efficiency.

[0028] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the overall structure of a modular and recyclable energy dissipation and shock absorption retaining wall of the present invention;

[0030] Figure 2 Schematic diagram of a three-dimensional model of a retaining wall steel frame in the present invention;

[0031] Figure 3 Schematic diagram of a three-dimensional model of a basic module in the present invention;

[0032] Figure 4 Schematic diagram of a three-dimensional model of the front center wall module of the present invention;

[0033] Figure 5 Schematic diagram of the three-dimensional model of the left and right corner wall modules in the present invention;

[0034] Figure 6 Schematic diagram of the three-dimensional model of the left and right wall modules in the present invention;

[0035] Figure 7 Schematic diagram of a three-dimensional model of the arm support module of the present invention;

[0036] Figure 8 It is a schematic structural diagram of the rubber shock-absorbing pad in the present invention.

[0037] Reference numerals:

[0038] 1. Retaining wall steel frame; 11. Foundation module; 1101. H-shaped frame beam; 12. Front center wall module; 1201. First variable-section H-shaped steel column; 1202. First H-shaped steel column; 1203. Crossbeam 1; 1204. Cantilevered cover beam 1; 1205. Anchor beam 1; 13. Left corner wall module; 1301. Second variable-section H-shaped steel column; 1302. Second H-shaped steel column; 1303. Anchor beam 2; 1304. Crossbeam 2; 1305, cantilever cover beam 2; 14, right corner wall module; 15, left wall module; 1501, third variable-section H-shaped steel column; 1502, anchor connecting beam 3; 1503, crossbeam 3; 16, right wall module; 17, top cover module; 18, armrest beam ear plate; 2, armrest support module; 21, adaptive damping adjustment top support arm; 22, connecting ear plate; 3, sealing plate; 4, rubber shock-absorbing pad; 5, node plate; 6, bolts. DETAILED DESCRIPTION

[0039] The technical solution of the present invention is further described below with reference to the accompanying drawings and embodiments.

[0040] Unless otherwise defined, the technical or scientific terms used in the present invention shall have the usual meanings understood by persons of ordinary skill in the field to which the present invention belongs. The words "first", "second" and similar terms used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprise" mean that the elements or objects preceding the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0041] Example

[0042] See also Figures 1-8The present invention provides a modular and recyclable energy dissipation and shock absorption retaining wall and a method for using the same. The energy dissipation and shock absorption wall includes a retaining wall steel frame 1 and an arm support module 2 fixedly supported on the inner side of the retaining wall steel frame 1. The retaining wall steel frame 1 adopts a detachable steel frame structure, wherein the retaining wall steel frame 1 includes: a basic module 11, a front center wall module 12, a left corner wall module 13, a right corner wall module 14, a left wall module 15, a right wall module 16 and a top cover module 17. Rubber shock-absorbing pads 4 are provided at the connection between each module of the retaining wall steel frame 1, and all are assembled and connected by bolts 6. In the present invention, by adopting a modular design for the retaining wall, each wall module can be prefabricated in a factory to complete the production of standardized modules, and can be quickly assembled on site using bolts 6, thereby effectively improving construction efficiency. During installation, the top cover module 17 is fixedly installed on the top of the left wall module 15, the front center wall module 12 and the right wall module 16. The top cover module 17 consists of a frame beam and an end beam for fixed connection. The end beam is welded to one side of the frame beam and tilted 45 degrees relative to the plane of the frame beam. The web of the end beam is provided with six bolt holes, and the upper surface of the frame beam is provided with a panel. The top cover module 17 acts as a vehicle stop, effectively preventing soil or rocks from sliding off the top of the sidewall.

[0043] like Figure 3 As shown, the basic module 11 includes an H-shaped frame beam 1101, a bottom plate and an arm beam ear plate 18 for fixing the arm support module 2, and the bottom plate, the arm beam ear plate 18 and the top of the H-shaped frame beam 1101 are welded and fixedly connected. The steel components in the retaining wall basic module 11 are all connected by welded nodes, and the entire basic module 11 is produced as a standardized module through prefabrication in the factory. The expansion connection between the basic module 11 and each module of the retaining wall steel frame 1 is connected by bolts 6, and the installation personnel complete the splicing of multiple modules on site according to the actual size of the working surface.

[0044] like Figure 4 As shown, the front center wall module 12 includes a first variable-section H-shaped steel column 1201, a first H-shaped steel column 1202 arranged in the middle position of the first variable-section H-shaped steel column 1201, a ground connecting beam 1205, and a cross beam 1203 for welding and fixing the connection. The ground connecting beam 1205 is fixedly installed at the bottom of the first variable-section H-shaped steel column 1201, the first H-shaped steel column 1202 and the ground connecting beam 1205 are connected to the arm support module 2 through the arm beam ear plate 18, and the top of the first variable-section H-shaped steel column 1201 is provided with a cantilever cover beam 1204 for fixedly connecting the top cover module 17. The connection ends of the front center wall module 12 are fixedly connected through rubber shock-absorbing pads 4.

[0045] like Figure 5As shown, the left corner wall module 13 and the right corner wall module 14 are fixedly connected to the left and right ends of the front center wall module 12 respectively. The left corner wall module 13 and the right corner wall module 14 adopt a symmetrical structure, including a second variable-section H-shaped steel column 1301, a second H-shaped steel column 1302, a second anchor beam 1303 and a second crossbeam 1304 for welding and fixing the connection. The second H-shaped steel column 1302 and the second anchor beam 1303 are connected to the arm support module 2 through the arm beam ear plate 18. The top of the second variable-section H-shaped steel column 1301 is beveled at a 45° port and a node plate 5 is provided at the opening. The node plate 5 is fixedly connected to the top cover plate module 17 by bolts 6, and the other side of the second variable-section H-shaped steel column 1301 is provided with a cantilever cover plate beam 1305 for fixedly connecting the top cover plate module 17.

[0046] like Figure 6 As shown, the left wall module 15 and the right wall module 16 are fixedly installed on both sides of the retaining wall steel frame 1 with a symmetrical structure, including a third variable-section H-shaped steel column 1501, a second anchor beam 1303 and a third crossbeam 1503 for welding and fixing the connection. The third H-shaped steel column and the third anchor beam 1502 are connected to the arm support module 2 through the arm beam ear plate 18. The top of the third variable-section H-shaped steel column 1501 is beveled at a 45° port and a node plate 5 is provided at the opening. The node plate 5 is fixedly connected to the top cover module 17 by bolts 6.

[0047] like Figure 7 As shown, the arm support module 2 includes an adaptively damping top support arm 21 and connecting lugs 22. The connecting lugs 22 are welded to each end of the adaptively damping top support arm 21. The connecting lugs 22 are connected to the arm beam lugs 18 via bolts 6. A hydraulic system with a certain damping force is filled within the cavity of the adaptively damping top support arm 21. The arm support module 2 is connected to the base module 11, the side and corner wall modules, and the front center wall module 12 via bolts 6 on both sides of the lugs, completing the installation of the retaining wall. The hydraulic system within the arm support module 2 has a certain damping force. The cavity of the adaptively damping top support arm 21 is filled with a silicone-based hydraulic oil with a certain damping force. The damping force can respond in real time and adaptively adjust according to the actual external load, effectively balancing the structural resonance caused by external disturbances to the soil and preventing structural buckling.

[0048] During on-site construction, the present invention assembles three walls: a foundation module 11, a front center wall module 12, a left corner wall module 13, a right corner wall module 14, a left wall module 15, a right wall module 16, and a top cover module 17. A cover plate 3 is then laid inside the walls. The interior of the three walls can be filled with ore or slag from the construction site, which not only meets the needs of landfilling construction waste but also provides sufficient gravity for the retaining wall itself, ensuring sufficient friction between the retaining wall base and the foundation. This ensures the stability of the retaining wall and effectively solves the problem of large-scale masonry structures disrupting the harmony of the landscape.

[0049] Furthermore, the surface of the steel components of the retaining wall steel frame is hot-dip galvanized, the zinc layer thickness is ≥80μm, and the outside is coated with epoxy fire retardant paint, with a fire resistance limit of ≥1.5 hours.

[0050] A method for using a modular and recyclable energy dissipation and shock-absorbing retaining wall, comprising the following steps:

[0051] S1: Leveling the site before slope protection is required, the site is based on the actual project needs;

[0052] S2: Lay the foundation modules 11 in parallel according to the direction of the slope, level them and install them;

[0053] S3: Fix and install the central wall module. Place the central wall module on the front side of the slope. Connect the anchor beam 1205 in the front central wall module 12 and the foundation module 11 with bolts 6. Then install the arm support module between the front central wall module 12 and the foundation module 11. Align the upper and lower connecting ears of the arm support module with the arm beam ears 18 on the front central wall module 12 and the foundation module 11, and fix them with bolts 6.

[0054] S4: Install the left and right wall modules. Place the left and right wall modules on the side of the slope and connect the anchor beams 1502 and the foundation module 11 in the left and right wall modules respectively with bolts 6. Then install the arm support module between the left and right wall modules and the foundation module 11. Align the upper and lower connecting ear plates of the arm support module with the arm beam ear plates 18 on the left and right wall modules and the foundation module 11. Secure the arm support module 2 with bolts 6.

[0055] S5: Install the left and right corner wall modules. Place the left and right corner wall modules on the side of the slope. Connect the second anchor beams 1303 of the left and right corner wall modules to the front center wall module 12, the left wall module 15, the right wall module 16, and the foundation module 11 respectively with bolts 6. Then, install the arm support module between the left and right corner wall modules and the foundation module 11. Align the upper and lower connecting ears of the arm support module with the arm beam ears 18 on the left and right corner wall modules and the foundation module 11. Secure the arm support module 2 with bolts 6.

[0056] S6: Install the top cover module 17. Use bolts 6 to connect the top cover module 17 to the top of the front center wall module 12, the left wall module 15, the right wall module 16, the left corner wall module 13, and the right corner wall module 14 in sequence.

[0057] S7: Fill the cavity of the retaining wall steel frame 1 enclosed by three walls with a certain amount of ore, slag or backfill soil according to the site conditions to increase the static friction between the retaining wall and the foundation and prevent the retaining wall from overturning. When filling, adopt layered compaction, avoid the arm support module area, and reserve a 200mm operating gap;

[0058] S8: Check the installation integrity, stability and safety. Rubber shock-absorbing pads 4 are fixed between the joints between each wall module. They can be used after they are firmly installed.

[0059] S9: After the project is completed, the above steps are carried out in reverse order to complete the dismantling of all retaining wall components for later recycling.

[0060] Therefore, the present invention adopts a modular and recyclable energy dissipation and shock-absorbing retaining wall of the above structure. By adopting a modular design, each wall frame adopts a detachable steel frame structure, which effectively improves the construction efficiency. At the same time, the interior of the wall surrounded by three walls can be filled with ore or slag at the construction site, ensuring sufficient friction between the retaining wall foundation and the foundation, thereby ensuring the stability of the retaining wall and effectively solving the problem of large-scale masonry structures destroying the coordination of the landscape.

[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit the same. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that they can still modify or replace the technical solutions of the present invention with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solutions to deviate from the spirit and scope of the technical solutions of the present invention.

Claims

1. A modular and recyclable energy dissipation and shock absorption retaining wall, characterized by: It includes a retaining wall steel frame and an arm support module fixedly supported on the inner side of the retaining wall steel frame. The retaining wall steel frame adopts a detachable steel frame structure. The retaining wall steel frame includes: a basic module, a front center wall module, a left corner wall module, a right corner wall module, a left wall module, a right wall module and a top cover module. The connection between each module of the retaining wall steel frame is provided with rubber shock-absorbing pads, and they are all assembled and connected with bolts. The top cover module is fixedly installed on the top of the left wall module, the front center wall module and the right wall module.

2. The modular recyclable energy dissipation and shock absorption retaining wall according to claim 1, characterized in that: The basic module includes an H-shaped frame beam, a bottom plate and an armrest beam ear plate for fixedly connecting the armrest support module. The bottom plate and the armrest beam ear plate are welded and fixedly connected to the top of the H-shaped frame beam.

3. The modular, recyclable, energy dissipation and shock absorption retaining wall according to claim 1, characterized in that: The front center wall module includes a first variable-section H-shaped steel column, a first H-shaped steel column arranged in the middle position of the first variable-section H-shaped steel column, a ground connecting beam, and a cross beam for welding and fixing the connection. The ground connecting beam is fixedly installed at the bottom of the first variable-section H-shaped steel column. The first H-shaped steel column and the ground connecting beam are connected to the arm support module through the arm beam ear plate. The top of the first variable-section H-shaped steel column is provided with a cantilever cover beam for fixedly connecting the top cover module. The connection ends of the front center wall module are fixedly connected by the rubber shock-absorbing pads. The rubber shock-absorbing pads are made of rubber material with a small compression deformation rate and a large damping coefficient.

4. The modular, recyclable, energy dissipation and shock absorption retaining wall according to claim 1, characterized in that: The left corner wall module and the right corner wall module are respectively fixedly connected to the left and right ends of the front center wall module. The left corner wall module and the right corner wall module adopt a symmetrical structure, including a second variable-section H-shaped steel column, a second H-shaped steel column, a second anchor beam and a second crossbeam for welding and fixing the connection. The second H-shaped steel column and the second anchor beam are connected to the arm support module through an arm beam ear plate. The top of the second variable-section H-shaped steel column is beveled at a 45° port and a node plate is provided at the opening. The node plate is fixedly connected to the top cover module by bolts, and the other side of the second variable-section H-shaped steel column is provided with a cantilever cover beam two for fixedly connecting the top cover module.

5. The modular recyclable energy dissipation and shock absorption retaining wall according to claim 1, characterized in that: The left wall module and the right wall module are fixedly installed on both sides of the retaining wall steel frame with a symmetrical structure, including a third variable-section H-shaped steel column, three anchor beams and three crossbeams for welding and fixing the connection. The third variable-section H-shaped steel column and the three anchor beams are connected to the arm support module through the arm beam ear plate. The top of the third variable-section H-shaped steel column is beveled at a 45° port and a node plate is provided at the opening. The node plate is fixedly connected to the top cover module by bolts.

6. The modular, recyclable, energy dissipation and shock absorption retaining wall according to claim 1, characterized in that: The top cover module includes a frame beam and an end beam for fixed connection. The end beam is welded and fixed to one side of the frame beam. The end beam is inclined 45 degrees relative to the plane of the frame beam. Bolt holes are provided on the web of the end beam, and a panel is provided on the upper surface of the frame beam.

7. The modular, recyclable, energy dissipation and shock absorption retaining wall according to claim 1, characterized in that: The arm support module includes an adaptive damping adjustment top support arm and a connecting ear plate. The connecting ear plate of the adaptive damping adjustment top support arm is welded and fixed at both ends of the adaptive damping adjustment top support arm. The connecting ear plate is connected to the arm beam ear plate by bolts. The inner cavity of the adaptive damping adjustment top support arm is filled with silicone-based hydraulic oil with a certain damping. The damping force can respond in real time and adaptively adjust according to the actual external load.

8. The modular, recyclable, energy dissipation and shock absorption retaining wall according to claim 1, characterized in that: The basic module, the front center wall module, the left corner wall module, the right corner wall module, the left wall module, the right wall module and the top cover module are assembled into three walls, and a sealing plate is laid on the inner side of the wall.

9. The modular, recyclable, energy dissipation and shock absorption retaining wall according to claim 1, characterized in that: The surface of the steel components of the retaining wall steel frame is hot-dip galvanized, the zinc layer thickness is ≥80μm, and the outside is coated with epoxy fire retardant paint, with a fire resistance limit of ≥1.5 hours.

10. A method for using the modular recyclable energy dissipation and shock absorption retaining wall according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1: Leveling the site before slope protection is required, the site is based on the actual project needs; S2: Laying the foundation modules flat, arranging the foundation modules in parallel according to the direction of the slope, leveling and installing them; S3: Fix and install the central wall module, place the central wall module on the front side of the slope, connect the first anchor beam of the front central wall module and the foundation module with bolts, then install the arm support module between the front central wall module and the foundation module, align the upper and lower connecting ear plates of the arm support module with the arm beam ear plates on the front central wall module and the foundation module, and fix the two with bolts; S4: Install the left and right wall modules, place the left and right wall modules on the side of the slope, and respectively connect the anchor beams 3 and the foundation module in the left and right wall modules with bolts. Then, install the arm support module between the left and right wall modules and the foundation module, align the upper and lower connecting ear plates of the arm support module with the arm beam ear plates on the left and right wall modules and the foundation module, and fix the arm support module with bolts. S5: Install the left and right corner wall modules. Place the left and right corner wall modules on the side of the slope. Connect the second anchor beams of the left and right corner wall modules to the front center wall module, the left wall module, the right wall module, and the foundation module respectively with bolts. Then, install the arm support modules between the left and right corner wall modules and the foundation module. Align the upper and lower connecting lugs of the arm support modules with the arm beam lugs on the left and right corner wall modules and the foundation module, and secure the arm support modules with bolts. S6: Install the top cover module, and use bolts to sequentially install the top cover module on the top of the front center wall module, the left wall module, the right wall module, the left corner wall module, and the right corner wall module; S7: Fill the cavity of the retaining wall steel frame enclosed by three walls with a certain amount of ore, slag or backfill soil according to the site conditions to increase the static friction between the retaining wall and the foundation and prevent the retaining wall from overturning. When filling, adopt layered compaction, avoid the arm support module area, and reserve a 200mm operating gap; S8: Check the installation integrity, stability and safety. Rubber shock-absorbing pads are fixed between the joints between each wall module. They can be used after they are firmly installed. S9: After the project is completed, perform the above steps in reverse order to complete the dismantling of all retaining wall components for later recycling.

Images