A reinforced soil retaining wall with shock absorption and energy dissipation and a construction method

Abstract

The present invention discloses a reinforced earth retaining wall with shock absorption and energy dissipation and a construction method, which relates to the technical field of civil engineering. It includes an assembled panel, a reinforcing bar, and an energy dissipation connection component. The energy dissipation connection component includes a fixed seat, an energy dissipation block, and a deflection block. When an earthquake occurs, the tensile force applied by the reinforcing bar to the assembled panel can be decomposed into a radial force and an axial force through the rotation of the deflection block and the sliding of the energy dissipation block. The radial force is absorbed and offset by the deflection of the deflection block and the first shock absorption spring. The axial force is absorbed and offset by the sliding of the energy dissipation block and the second shock absorption spring. An energy dissipation plate is arranged on the assembled panel to further absorb and disperse the seismic energy between the assembled panels, thereby greatly reducing the impact of the earthquake on the assembled panel and the reinforcing bar, avoiding the occurrence of wall panel shedding and reinforcing bar pulling out, and effectively improving the stability and safety of the reinforced earth retaining wall.

Description

Technical Field

[0001] The present invention relates to the technical field of civil engineering, and particularly to a reinforced earth retaining wall with shock absorption and energy dissipation and a construction method thereof. Background Technique

[0002] A reinforced earth retaining wall refers to an integral composite structure composed of fill soil, a certain amount of strip-shaped reinforcing bars arranged in the fill soil, and a vertical wall panel. There are internal forces such as earth pressure on the wall surface, the tension of the reinforcing bars, and the friction force between the filler and the reinforcing bars in this structure. These forces balance each other to ensure the stability of the composite structure. Reinforced earth retaining walls are widely used in transportation, water conservancy, construction and other fields.

[0003] However, when the traditional reinforced earth retaining wall is installed, the connection between the wall panel and the reinforcing bar is generally carried out by welding, bolt connection or bayonet connection. This connection method makes the connection point between the wall panel and the reinforcing bar fixed. When an earthquake occurs, the impact force generated by the earthquake will directly act on this connection point, and then the connection point will be damaged, resulting in the phenomenon of the wall panel falling off and the reinforcement being pulled out, and then the stability and safety of the reinforced earth retaining wall are relatively low.

[0004] Therefore, it is necessary to provide a reinforced earth retaining wall with shock absorption and energy dissipation and a construction method thereof to solve the problems raised in the above background technique. Summary of the Invention

[0005] To achieve the above object, the present invention provides the following technical solution: A reinforced earth retaining wall with shock absorption and energy dissipation, including an assembly panel, a reinforcing bar, and an energy dissipation connection component. Among them, the energy dissipation connection component is fixedly arranged on the assembly panel through bolts, and the other end of the energy dissipation connection component is fixedly connected to the reinforcing bar;

[0006] The energy dissipation connection component includes a fixed seat, an energy dissipation block, and a deflection block. Among them, the fixed seat is fixedly connected to the assembly panel, a sliding cavity is opened in the fixed seat, the energy dissipation block is slidably arranged in the sliding cavity, and there is a gap between the energy dissipation block and the sliding cavity. A spherical deflection groove is opened in the energy dissipation block, a deflection block is rotatably arranged in the deflection groove, a connecting rod is fixedly connected to the deflection block by threads, the connecting rod is fixedly connected to the reinforcing bar, through holes for the connecting rod to pass through are opened in both the fixed seat and the energy dissipation block, and there are gaps between the connecting rod and the two through holes.

[0007] Preferably, the deflection block includes a rotating block and a shock absorption plate. Among them, the rotating block is spherical and has the same size as the deflection groove, the rotating block is rotatably arranged along the deflection groove, and a shock absorption plate is fixedly arranged on the rotating block.

[0008] Preferably, the shock-absorbing plate is an annular plate and its center coincides with the center of the rotating block. A spherical ring plate is fixedly arranged on the shock-absorbing plate.

[0009] A T-shaped shock-absorbing groove is formed in the energy-consuming block. The inner side surface of the shock-absorbing groove is a spherical surface. The ring plate fits against the inner side surface of the shock-absorbing groove and rotates along the shock-absorbing groove. A plurality of first shock-absorbing springs are evenly arranged in a circumferential manner on both sides of the ring plate. The other ends of the first shock-absorbing springs are fixedly connected to the shock-absorbing groove.

[0010] Preferably, a plurality of sliding holes are formed on one side of the fixed seat close to the energy-consuming block. A sliding plate is slidably arranged in the sliding holes. A second shock-absorbing spring is fixedly arranged between the sliding plate and the sliding holes.

[0011] A plurality of guide blocks are fixedly arranged on one side of the energy-consuming block close to the fixed seat. The guide blocks are slidably connected to the sliding holes and fit against the sliding plate, and there is a gap between the guide blocks and the sliding holes.

[0012] Preferably, a first sliding ring is slidably arranged in the sliding holes. A plurality of energy-dissipating springs are fixedly arranged in a circumferential manner on the first sliding ring. The other ends of the energy-dissipating springs are fixedly provided with a second sliding ring. The second sliding ring is slidably connected to the guide blocks.

[0013] Preferably, the assembly panel is rectangular and L-shaped plates are fixedly arranged at the four corners. Two energy-dissipating plates are fixedly arranged at intervals on the L-shaped plates. A plurality of the assembly panels are clamped to form a retaining wall through the L-shaped plates and the energy-dissipating plates.

[0014] A construction method for a reinforced earth retaining wall with shock absorption and energy dissipation includes the following steps:

[0015] S1. Clamp the assembly panels together through the L-shaped plates and the energy-dissipating plates. After fixedly connecting the connecting rod to the rib, fixedly connect it to the deflecting block.

[0016] S2. Install the assembly panels, ribs and energy-consuming connection components layer by layer while filling and compacting the sand until the installation of the entire reinforced earth retaining ring is completed.

[0017] S3. When an earthquake occurs, a tensile force will be generated between the assembly panel and the rib. Use the energy-consuming connection component to dissipate and eliminate this tensile force to avoid the occurrence of damage phenomena such as the shedding of the panel of the reinforced earth retaining wall and the pulling out of the reinforcement under the influence of the earthquake.

[0018] S3.1. The deflecting block deflects along the energy-consuming block. At the same time, the ring plate squeezes the first shock-absorbing springs, and thus the deflecting force is used to offset the radial force generated between the rib and the assembly panel.

[0019] S3.2. While the deflection block deflects along the energy dissipation block, the energy dissipation block can slide along the sliding cavity. At the same time, the guide block can push the sliding plate to slide and compress the second shock absorption spring, so as to offset the axial force generated between the rib and the assembly panel through the sliding of the energy dissipation block;

[0020] S4. When an earthquake occurs, the energy dissipation plates arranged on multiple assembly panels can squeeze each other and absorb this squeezing force, so as to reduce the relative displacement between two adjacent assembly panels and prevent the assembly panels from being damaged.

[0021] Compared with the prior art, the present invention provides a reinforced earth retaining wall with shock absorption and energy dissipation and a construction method, having the following beneficial effects:

[0022] Through the setting of the energy dissipation connection component in the present invention, the connection between the rib and the assembly panel is no longer fixed. When an earthquake occurs, the tensile force applied by the rib to the assembly panel can be absorbed and offset through the rotation of the deflection block and the sliding of the energy dissipation block, that is, the deflection block and the energy dissipation block can decompose the tensile force generated by the earthquake into a radial force and an axial force. The radial force is absorbed and offset through the deflection of the deflection block and the first shock absorption spring, and the axial force is absorbed and offset through the sliding of the energy dissipation block and the second shock absorption spring. An energy dissipation plate is arranged on the assembly panel, and the seismic energy between the assembly panels is further absorbed and dispersed through the energy dissipation plate, thereby greatly reducing the influence of the earthquake on the assembly panel and the rib, avoiding the occurrence of the phenomenon of the wall panel falling off and the reinforcement being pulled out, and effectively improving the stability and safety of the reinforced earth retaining wall. Description of the Drawings

[0023] Figure 1 is the overall structural schematic diagram of the present invention;

[0024] Figure 2 is the structural schematic diagram of the assembly panel in the present invention;

[0025] Figure 3 is the structural schematic diagram of the energy dissipation connection component in the present invention;

[0026] Figure 4 is the sectional structural schematic diagram of the energy dissipation connection component in the present invention;

[0027] Figure 5 is the internal structural schematic diagram of the fixed seat in the present invention;

[0028] Figure 6 is Figure 5 the enlarged schematic diagram of the structure of part A in

[0029] Figure 7 is the structural schematic diagram of the deflection block in the present invention;

[0030] In the figure: 1. Assembly panel; 11. L-shaped plate; 12. Energy dissipation plate; 2. Rib; 3. Energy dissipation connection component; 31. Fixed seat; 311. Sliding cavity; 312. Sliding hole; 313. Slide plate; 314. Second shock absorption spring; 315. First sliding ring; 316. Energy dissipation spring; 317. Second sliding ring; 32. Energy dissipation block; 321. Deflection groove; 322. Shock absorption groove; 323. Guide block; 33. Deflection block; 331. Connecting rod; 332. Rotating block; 333. Shock absorption plate; 334. Ring plate; 335. First shock absorption spring. Detailed implementation manner

[0031] Please refer to Figures 1 to 7 In the embodiment of the present invention, a reinforced earth retaining wall with shock absorption and energy dissipation includes an assembly panel 1, a rib 2, and an energy dissipation connection component 3. Among them, the energy dissipation connection component 3 is fixedly arranged on the assembly panel 1 through bolts, and the other end of the energy dissipation connection component 3 is fixedly connected to the rib 2;

[0032] The energy dissipation connection component 3 includes a fixed seat 31, an energy dissipation block 32, and a deflection block 33. Among them, the fixed seat 31 is fixedly connected to the assembly panel 1. A sliding cavity 311 is formed in the fixed seat 31. An energy dissipation block 32 is slidably arranged in the sliding cavity 311, and there is a gap between the energy dissipation block 32 and the sliding cavity 311. A spherical deflection groove 321 is formed in the energy dissipation block 32. A deflection block 33 is rotatably arranged in the deflection groove 321. A connecting rod 331 is fixedly connected to the deflection block 33 by threads. The connecting rod 331 is fixedly connected to the rib 2. Through holes for the connecting rod 331 to pass through are formed in both the fixed seat 31 and the energy dissipation block 32, and there are gaps between the connecting rod 331 and the two through holes;

[0033] A gap is provided between the connecting rod 331 and the two through holes, so that when the deflection block 33 rotates, the connecting rod 331 has a deflection space, preventing the situation that the connecting rod 331 abuts against the fixed seat 31 or the energy dissipation block 32 and causing component damage;

[0034] The deflection block 33 includes a rotating block 332 and a shock absorption plate 333. Among them, the rotating block 332 is spherical and has the same size as the deflection groove 321. The rotating block 332 is rotatably arranged along the deflection groove 321. A shock absorption plate 333 is fixedly arranged on the rotating block 332;

[0035] The shock absorption plate 333 is an annular plate and its center coincides with the center of the rotating block 332. A spherical ring plate 334 is fixedly arranged on the shock absorption plate 333;

[0036] A shock-absorbing groove 322 in the shape of a T is formed in the energy-consuming block 32. The inner side surface of the shock-absorbing groove 322 is a spherical surface. The ring plate 334 fits against the inner side surface of the shock-absorbing groove 322 and rotates along the shock-absorbing groove 322. A plurality of first shock-absorbing springs 335 are evenly arranged in a circumferential manner on both sides of the ring plate 334. The other end of the first shock-absorbing spring 335 is fixedly connected to the shock-absorbing groove 322;

[0037] It should be noted that the inner side of the shock-absorbing groove 322 and the ring plate 334 are set to be spherical, and the center of the shock-absorbing plate 333 (i.e., the ring plate 334) is set to coincide with the center of the rotating block 332. When the rotating block 332 deflects at multiple angles along the deflection groove 321, the ring plate 334 can also deflect at multiple angles along the shock-absorbing groove 322, and the first shock-absorbing spring 335 can be compressed during the deflection process, so that the deflection block 33 can offset the radial forces at various angles, that is, ensure that the tensile force generated by the earthquake is absorbed and eliminated;

[0038] A plurality of sliding holes 312 are formed on the side of the fixed seat 31 close to the energy-consuming block 32. A sliding plate 313 is slidably arranged in the sliding holes 312. A second shock-absorbing spring 314 is fixedly arranged between the sliding plate 313 and the sliding holes 312;

[0039] A plurality of guide blocks 323 are fixedly arranged on the side of the energy-consuming block 32 close to the fixed seat 31. The guide blocks 323 are slidably connected to the sliding holes 312 and are in contact with the sliding plate 313, and there is a gap between the guide blocks 323 and the sliding holes 312;

[0040] The assembly panel 1 is rectangular and L-shaped plates 11 are fixedly arranged at the four corners. Two energy-dissipating plates 12 are fixedly arranged at intervals on the L-shaped plates 11. A plurality of the assembly panels 1 form a retaining wall through the engagement of the L-shaped plates 11 and the energy-dissipating plates 12.

[0041] During implementation, the assembly panel 1 can be prefabricated and installed in a snap-fit manner, making the installation of the reinforced earth retaining wall faster and more convenient. The reinforcing bars 2 are connected to the assembly panel 1 through the energy-dissipating connection component 3, enabling the connection points between the reinforcing bars 2 and the assembly panel 1 to shift, thereby offsetting the impact of earthquakes and preventing the occurrence of wall panel detachment and reinforcing bar pulling-out. When an earthquake occurs, the deflection of the deflection block 33 and the sliding of the energy-dissipating block 32 along the sliding cavity 311 decompose the tensile force generated by the vibration into radial and axial forces, and both forces are eliminated. When a tensile force is generated between the reinforcing bars 2 and the assembly panel 1, at this time, the deflection block 33 can rotate along the deflection groove 321, and at the same time, the ring plate 334 can rotate along the shock-absorbing groove 322, and the deflection force is absorbed by the first shock-absorbing spring 335, enabling the connection between the reinforcing bars 2 and the assembly panel 1 to deflect. At the same time, the energy-dissipating block 32 can slide along the sliding cavity 311 and push the sliding plate 313 to slide, that is, the energy-dissipating block 32 can displace axially and absorb this axial force through the second shock-absorbing spring 314. Therefore, the tensile force generated by the earthquake is decomposed and absorbed, preventing the connection points between the reinforcing bars 2 and the assembly panel 1 from breaking, resulting in wall panel detachment and reinforcing bar pulling-out, and thus improving the stability and safety of the reinforced earth retaining wall. In addition, when an earthquake occurs, the energy-dissipating plates 12 between two adjacent assembly panels 1 can be mutually extruded, and the material of the energy-dissipating plates 12 is made of a material with shock-absorbing performance, such as a rubber pad or polyurethane foam. Therefore, during the extrusion process, the earthquake energy can be effectively absorbed and dispersed, reducing the vibration and damage of the panels and further improving the stability of the reinforced earth retaining wall.

[0042] In this embodiment, as Figure 6 , a first sliding ring 315 is slidably arranged in the sliding hole 312. A plurality of energy-dissipating springs 316 are fixedly arranged in a circumferential manner on the first sliding ring 315. The other ends of the energy-dissipating springs 316 are fixedly provided with a second sliding ring 317, and the second sliding ring 317 is slidably connected with the guide block 323.

[0043] The arrangement of the first sliding ring 315 and the second sliding ring 317 enables the guide block 323 to perform radial sliding along the sliding hole 312, that is, the energy-dissipating block 32 can perform radial sliding along the sliding cavity 311. When the deflection block 33 deflects along the energy-dissipating block 32, at this time, the direction of the tensile force generated by the deflection block 33 will change. At this time, the energy-dissipating block 32 will further shift under the action of this tensile force, that is, shift towards the side with tensile force, and the offset force is absorbed by the energy-dissipating springs 316, thereby reducing the pressure exerted by the deflection block 33 on the energy-dissipating block 32, further eliminating the tensile force generated by the earthquake, and improving the shock-absorbing and energy-dissipating effect.

[0044] A construction method for a reinforced earth retaining wall with shock-absorbing and energy-dissipating functions includes the following steps:

[0045] S1. Clamp the assembly panel 1 together through the L-shaped plate 11 and the energy dissipation plate 12. After fixedly connecting the connecting rod 331 to the rib 2, fixedly connect it to the deflection block 33.

[0046] S2. Install the assembly panel 1, the rib 2, and the energy dissipation connection assembly 3 layer by layer, while filling and compacting the sand material until the installation of the entire reinforced earth retaining ring is completed.

[0047] S3. When an earthquake occurs, a tensile force will be generated between the assembly panel 1 and the rib 2. Use the energy dissipation connection assembly 3 to dissipate and eliminate this tensile force, avoiding the occurrence of damage phenomena such as the shedding of the reinforced earth retaining wall panel and the pulling out of the reinforcement under the influence of the earthquake.

[0048] S3.1. The deflection block 33 deflects along the energy dissipation block 32. At the same time, the ring plate 334 squeezes the first damping spring 335, thereby offsetting the radial force generated between the rib 2 and the assembly panel 1 through this deflection force.

[0049] S3.2. When the deflection block 33 deflects along the energy dissipation block 32, the energy dissipation block 32 can slide along the sliding cavity 311. At the same time, the guide block 323 can push the sliding plate 313 to slide and squeeze the second damping spring 314, thereby offsetting the axial force generated between the rib 2 and the assembly panel 1 through the sliding of the energy dissipation block 32.

[0050] S4. When an earthquake occurs, the energy dissipation plates 12 provided on multiple assembly panels 1 can squeeze each other and absorb this squeezing force, thereby reducing the relative displacement between adjacent two assembly panels 1 and preventing the assembly panel 1 from being damaged.

[0051] In summary, when the present invention is implemented, through the setting of the energy dissipation connection assembly 3, the connection between the rib 2 and the assembly panel 1 is no longer fixed. When an earthquake occurs, the tensile force applied by the rib 2 to the assembly panel 1 can be absorbed and offset through the rotation of the deflection block 33 and the sliding of the energy dissipation block 32, that is, the deflection block 33 and the energy dissipation block 32 can decompose the tensile force generated by the earthquake into a radial force and an axial force. The radial force is absorbed and offset through the deflection of the deflection block 33 and the first damping spring 335, and the axial force is absorbed and offset through the sliding of the energy dissipation block 32 and the second damping spring 314. And energy dissipation plates 12 are provided on the assembly panel 1, and the seismic energy between the assembly panels 1 is further absorbed and dispersed through the energy dissipation plates 12, thereby greatly reducing the influence of the earthquake on the assembly panel 1 and the rib 2, avoiding the occurrence of the phenomena of the wall panel shedding and the reinforcement pulling out, and effectively improving the stability and safety of the reinforced earth retaining wall.

[0052] The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes should be covered within the protection scope of the present invention.

Claims

1. A reinforced earth retaining wall with shock absorption and energy dissipation, characterized in that: Comprising an assembly panel (1), a rib (2) and an energy dissipation connection component (3), wherein the energy dissipation connection component (3) is fixedly arranged on the assembly panel (1) by means of bolts, and the other end of the energy dissipation connection component (3) is fixedly connected to the rib (2); The energy dissipation connection assembly (3) comprises a fixed seat (31), an energy dissipation block (32) and a deflection block (33), wherein the fixed seat (31) is fixedly connected to the assembly panel (1), a sliding cavity (311) is provided in the fixed seat (31), the energy dissipation block (32) is slidably arranged in the sliding cavity (311), and a gap exists between the energy dissipation block (32) and the sliding cavity (311), a spherical deflection groove (321) is provided in the energy dissipation block (32), the deflection block (33) is rotatably arranged in the deflection groove (321), a connecting rod (331) is fixedly connected to the deflection block (33) by means of a thread, the connecting rod (331) is fixedly connected to the rib (2), and a through hole for the connecting rod (331) to pass through is provided in the fixed seat (31) and the energy dissipation block (32), and a gap exists between the connecting rod (331) and the two through holes.

2. A reinforced earth retaining wall with shock absorption and energy dissipation according to claim 1, characterized in that: The deflection block (33) comprises a rotating block (332) and a shock absorbing plate (333), wherein the rotating block (332) is spherical and has the same size as the deflection slot (321), the rotating block (332) is rotatably arranged along the deflection slot (321), and the shock absorbing plate (333) is fixedly arranged on the rotating block (332).

3. A reinforced earth retaining wall with shock absorption and energy dissipation according to claim 2, characterized in that: The damping plate (333) is an annular plate and its center coincides with the center of the rotating block (332); a spherical annular plate (334) is fixedly provided on the damping plate (333); A T-shaped shock absorbing groove (322) is provided in the energy dissipation block (32); the inner side surface of the shock absorbing groove (322) is a spherical surface; the ring plate (334) fits the inner side surface of the shock absorbing groove (322) and rotates along the shock absorbing groove (322); a plurality of shock absorbing springs (335) are evenly arranged in a circumferential pattern on both sides of the ring plate (334); the other end of the shock absorbing spring (335) is fixedly connected to the shock absorbing groove (322).

4. A reinforced earth retaining wall with shock absorption and energy dissipation according to claim 3, characterized in that: A plurality of sliding holes (312) are provided on a side of the fixed seat (31) close to the energy dissipation block (32), a sliding plate (313) is slidably arranged in the sliding hole (312), and a second shock absorbing spring (314) is fixedly arranged between the sliding plate (313) and the sliding hole (312); A plurality of guide blocks (323) are fixedly arranged on one side of the energy dissipation block (32) close to the fixed seat (31); the guide blocks (323) are slidably connected to the sliding holes (312) and fit with the slide plate (313); and a gap exists between the guide blocks (323) and the sliding holes (312).

5. A reinforced earth retaining wall with shock absorption and energy dissipation according to claim 4, characterized in that: A slip ring 1 (315) is slidably disposed in the sliding hole (312), a plurality of energy dissipation springs (316) are fixedly disposed in a circumferential manner on the slip ring 1 (315), a slip ring 2 (317) is fixedly disposed at the other end of the energy dissipation spring (316), and the slip ring 2 (317) is slidably connected to the guide block (323).

6. The reinforced earth retaining wall with shock absorption and energy dissipation function according to claim 4, characterized in that: The assembly panel (1) is rectangular and has L-shaped plates (11) fixedly arranged at four corners; two energy dissipation plates (12) are fixedly arranged at intervals on the L-shaped plate (11); a plurality of the assembly panels (1) are clamped together through the L-shaped plates (11) and the energy dissipation plates (12) to form a retaining wall.

7. A construction method of a reinforced earth retaining wall with shock absorption and energy dissipation, which adopts the reinforced earth retaining wall with shock absorption and energy dissipation as claimed in claim 6, characterized in that: The steps include: S1, clamping the assembly panel (1) together through the L-shaped plate (11) and the energy dissipation plate (12), fixing the connecting rod (331) to the rib (2), and then fixing the connecting rod (331) to the deflection block (33); S2, installing the assembly panel (1), the ribs (2) and the energy dissipation connection assembly (3) layer by layer, and simultaneously filling and compacting the sand material until the installation of the entire reinforced soil retaining ring is completed; S3. When an earthquake occurs, a tensile force is generated between the assembly panel (1) and the reinforcement bar (2). The energy dissipation connection assembly (3) is used to dissipate the tensile force, thereby preventing the reinforced earth retaining wall panel from falling off and the reinforcement bar from being pulled out under the influence of the earthquake; S3.1, the deflection block (33) deflects along the energy dissipation block (32), and at the same time the ring plate (334) squeezes the shock absorbing spring 1 (335), thereby offsetting the radial force generated between the rib (2) and the assembly panel (1) through this deflection force; S3.2, while the deflection block (33) is deflected along the energy absorbing block (32), the energy absorbing block (32) can slide along the sliding cavity (311), and at the same time, the guide block (323) can push the sliding plate (313) to slide and squeeze the shock absorbing spring 2 (314), thereby offsetting the axial force generated between the rib (2) and the assembly panel (1) through the sliding of the energy absorbing block (32); S4. When an earthquake occurs, the energy dissipation plates (12) provided on the plurality of assembly panels (1) can press against each other and absorb the pressing force, thereby reducing the relative displacement between two adjacent assembly panels (1) and preventing the assembly panels (1) from being damaged.

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