Slope supporting and anchoring device and construction method thereof

Abstract

The invention discloses a slope supporting and anchoring device and a construction method thereof, and relates to the technical field of slope anchoring, the slope supporting and anchoring device comprises an anchor rod, a sleeve is fixedly connected in the anchor rod, a plurality of expansion assemblies are circumferentially arranged on the outer side of the sleeve, long plates are arranged on the sides, away from the sleeve, of the expansion assemblies, and limiting plates are slidably connected to the two ends of the long plates correspondingly; the limiting plate is fixedly connected with the inner wall of the anchor rod, a plurality of reinforcing assemblies are arranged on the long plate and can be inserted into surrounding soil in different directions, and a driving assembly used for extruding the expansion assembly is arranged at the top of the anchor rod. The sleeve and the anchor rod are fixedly connected to form a core supporting structure, the expansion assembly enables the device to have the outward expansion capacity, the multi-direction insertion mechanism of the reinforcing assembly remarkably enhances the occlusal force between the anchor rod and surrounding soil, and the pulling resistance and slope stability of the anchoring device are improved on the whole.

Description

Technical Field

[0001] This invention relates to the field of slope anchoring technology, and in particular to a slope support anchoring device and its construction method. Background Technology

[0002] Anchor bolt support is a common method in slope protection. In ordinary slope anchor support, anchor bolts are usually driven into pre-drilled holes in the surface rock mass or the rock mass surrounding the cavern. The bonding effect between the anchor bolt and the soil increases the integrity and stability of the soil.

[0003] Existing anchoring devices generally adopt a prefabricated structure, with the anchor rod and other reinforcing structures inserted into the through hole separately. This operation is not only complicated, but also results in poor overall connection and stability. Furthermore, it can only extend in one direction for reinforcement, making it prone to loosening and resulting in poor overall effectiveness.

[0004] Therefore, there is an urgent need for a slope support anchoring device and its construction method to solve the problems existing in the above-mentioned technologies. Summary of the Invention

[0005] The purpose of this invention is to provide a slope support anchoring device and its construction method to solve the problems existing in the prior art.

[0006] To achieve the above objectives, the present invention provides the following solution: The present invention provides a slope support anchoring device and its construction method, including an anchor rod, a sleeve fixedly connected inside the anchor rod, a plurality of expansion components arranged circumferentially on the outer side of the sleeve, a long plate arranged on the side of the expansion components away from the sleeve, a limiting plate slidably connected to both ends of the long plate, the limiting plate being fixedly connected to the inner wall of the anchor rod, a plurality of reinforcing components arranged on the long plate, the reinforcing components being able to be inserted into the surrounding soil in different directions, and a driving component for squeezing the expansion components being arranged at the top of the anchor rod.

[0007] Optionally, the expansion assembly includes a first hinge rod hinged to the outer wall of the sleeve, one end of the first hinge rod being hinged to a strip plate, the other end of the strip plate being hinged to a third hinge rod, the other end of the third hinge rod being hinged to a movable member, the movable member contacting the drive assembly, and a second hinge rod symmetrically hinged to the middle of the strip plate, the other end of the second hinge rod being hinged to the outer wall of the sleeve.

[0008] Optionally, the moving component includes a mounting block hinged to the third hinge rod, a moving plate slidably connected inside the sleeve, the driving assembly contacting the moving plate, the moving plate being fixedly connected to the mounting block, and a plurality of through slots being circumferentially opened on the outer side of the sleeve, the mounting block being located in the through slots and slidably connected to the through slots.

[0009] Optionally, the drive assembly includes a hydraulic cylinder, the output end of which is fixedly connected to a pressing block, which extends into the sleeve and contacts the moving plate.

[0010] Optionally, the reinforcement component includes a transverse fastening rod fixedly connected to the long plate, a wedge block provided on one side of the transverse fastening rod, the wedge block being fixedly connected to the long plate, an oblique fastening rod slidably connected to the wedge block, a plurality of transverse through holes being provided on the anchor rod, the transverse fastening rod being adapted to the transverse through holes, and a plurality of oblique through holes being provided on the anchor rod, the oblique fastening rod being adapted to the oblique through holes.

[0011] Optionally, the wedge block is provided with a sliding groove, and a connecting plate is slidably connected in the sliding groove. The connecting plate is fixedly connected to the inclined reinforcing rod. The wedge block is provided with symmetrical limit grooves, and a roller is slidably connected in the limit groove. A connecting shaft is rotatably connected to the center of the roller, and the end of the connecting shaft is fixedly connected to the connecting plate.

[0012] Optionally, the limiting plate has a groove, a limiting rod is fixedly connected in the groove, a slider is slidably connected on the limiting rod, the slider is fixedly connected to the end of the long plate, a spring is sleeved on the outside of the limiting rod, one end of the spring is fixedly connected to the slider, and the other end of the spring is fixedly connected to the inner wall of the anchor rod.

[0013] Optionally, a plug is fixedly connected to the end of the anchor rod.

[0014] Optionally, brittle plates are installed in the transverse through hole and the oblique through hole respectively. The brittle plates are used to prevent soil from entering the interior when the anchor is inserted, and the transverse reinforcing rod and the oblique reinforcing rod can push the brittle plates open.

[0015] A construction method for a slope support anchoring device includes the following steps:

[0016] Drill holes in advance on the slopes that require support;

[0017] Insert the anchor rod into the pre-drilled hole;

[0018] The drive component extends into the sleeve and opens the expansion component, pushing the reinforcement component out of the anchor rod and inserting it into the surrounding soil to complete the fastening.

[0019] Grout the anchor bolts, and after the grout has solidified, remove the drive assembly. Finally, seal the top of the anchor bolts.

[0020] This invention discloses the following technical effects: In use, the anchor rod is inserted into a pre-drilled hole, and the expansion component is opened by the drive assembly, allowing the reinforcing component to extend beyond the anchor rod. The reinforcing component can extend in different directions, increasing load-bearing capacity and enhancing stability. This invention forms a core support structure through the fixed connection between the sleeve and the anchor rod. The expansion component enables the device to expand outwards, while the multi-directional insertion mechanism of the reinforcing component significantly enhances the interlocking force between the anchor rod and the surrounding soil, thereby improving the overall pull-out resistance of the anchoring device and the slope stability. Attached Figure Description

[0021] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0022] Figure 1 This is a schematic diagram of the structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the internal structure of the anchor rod of the present invention;

[0024] Figure 3 This is a schematic diagram of the internal structure of the sleeve of the present invention;

[0025] Figure 4 This is a schematic diagram of the wedge block structure of the present invention;

[0026] Figure 5 This is a schematic diagram of the structure of the limiting plate of the present invention;

[0027] In the diagram: 1. Anchor bolt; 2. Plug; 3. Brittle plate; 4. Extrusion block; 5. Hydraulic cylinder; 6. Sleeve; 7. First hinge rod; 8. Strip plate; 9. Second hinge rod; 10. Third hinge rod; 11. Long plate; 12. Transverse fastening rod; 13. Transverse through hole; 14. Angled fastening rod; 15. Angled through hole; 16. Wedge block; 17. Limiting plate; 18. Through groove; 19. Mounting block; 20. Moving plate; 21. Slide groove; 22. Limiting groove; 23. Connecting plate; 24. Connecting shaft; 25. Roller; 26. Groove; 27. Slider; 28. Limiting rod; 29. ​​Spring. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] Reference Figures 1-5 As shown, this embodiment provides a slope support anchoring device and its construction method, including an anchor rod 1, a sleeve 6 fixedly connected inside the anchor rod 1, several expansion components arranged circumferentially on the outer side of the sleeve 6, a long plate 11 arranged on the side of the expansion components away from the sleeve 6, a limiting plate 17 slidably connected to both ends of the long plate 11, the limiting plate 17 being fixedly connected to the inner wall of the anchor rod 1, several sets of reinforcing components arranged on the long plate 11, the reinforcing components can be inserted into the surrounding soil in different directions, and a driving component for squeezing the expansion components is arranged at the top of the anchor rod 1.

[0031] In use, the anchor rod 1 is inserted into the pre-drilled hole. The expansion component is opened by the drive assembly, allowing the reinforcement component to extend beyond the anchor rod 1. The reinforcement component can extend in different directions, increasing load-bearing capacity and enhancing stability. This invention forms a core support structure through the fixed connection between the sleeve 6 and the anchor rod 1. The expansion component enables the device to expand outwards, while the multi-directional insertion mechanism of the reinforcement component significantly enhances the interlocking force between the anchor rod 1 and the surrounding soil, thereby improving the overall pull-out resistance of the anchoring device and the slope stability.

[0032] Further refining the design, the expansion assembly includes a first hinge rod 7 hinged to the outer wall of the sleeve 6. One end of the first hinge rod 7 is hinged to a strip plate 8, and the other end of the strip plate 8 is hinged to a third hinge rod 10. The other end of the third hinge rod 10 is hinged to a movable component, which contacts the drive assembly. A second hinge rod 9 is symmetrically hinged to the middle of the strip plate 8, and the other end of the second hinge rod 9 is hinged to the outer wall of the sleeve 6. Through the combination of the first hinge rod 7, the second hinge rod 9, and the third hinge rod 10 with the strip plate 8, the folding and unfolding functions of the expansion assembly are achieved. When the drive assembly applies force, the strip plate 8 expands outward, driving the hinge rods to move, causing the expansion assembly to form an outwardly convex structure. This allows the reinforcing assembly to extend beyond the anchor rod 1, improving the lateral friction and pull-out resistance of the anchor rod 1.

[0033] Further refining the design, the moving component includes a mounting block 19 hinged to the third hinge rod 10. A moving plate 20 is slidably connected inside the sleeve 6. The driving assembly contacts the moving plate 20, and the moving plate 20 is fixedly connected to the mounting block 19. Several through slots 18 are circumferentially formed on the outer side of the sleeve 6. The mounting block 19 is located within and slidably connected to the through slots 18. The moving component is slidably connected through the through slots 18 inside the sleeve 6, ensuring that the expansion assembly maintains linear motion during driving and avoiding deviation or jamming. The cooperation between the mounting block 19 and the through slots 18 improves structural stability, ensures uniform distribution of the expansion force of the expansion assembly, and enhances the reliability of the device.

[0034] Further refining the design, the drive component includes a hydraulic cylinder 5, with a pressing block 4 fixedly connected to the output end of the hydraulic cylinder 5. The pressing block 4 extends into the sleeve 6 and contacts the moving plate 20. The hydraulic cylinder 5 drives the pressing block 4, directly applying mechanical force to the moving plate 20 to provide stable and controllable power for the expansion component to unfold. Hydraulic drive features high output force and smooth response, allowing for precise control of the expansion degree and adapting to anchoring requirements under different soil conditions.

[0035] Further refining the scheme, the reinforcement components include a transverse fastening rod 12 fixedly connected to the long plate 11. A wedge block 16 is provided on one side of the transverse fastening rod 12, and the wedge block 16 is fixedly connected to the long plate 11. An inclined fastening rod 14 is slidably connected to the wedge block 16. Several transverse through holes 13 are opened on the anchor rod 1, and the transverse fastening rod 12 is adapted to the transverse through holes 13. Several inclined through holes 15 are opened on the anchor rod 1, and the inclined fastening rod 14 is adapted to the inclined through holes 15. The transverse fastening rod 12 and the inclined fastening rod 14 move synchronously, forming a multi-directional (horizontal and inclined) soil penetration structure. The transverse rod enhances the radial stability of the anchor rod 1, and the inclined rod forms shear resistance through inclined insertion. The synergistic effect of the two significantly improves the shear and pull-out resistance of the anchoring device under complex stress environments.

[0036] Further refining the design, the wedge block 16 has a sliding groove 21, within which a connecting plate 23 is slidably connected. The connecting plate 23 is fixedly connected to the inclined reinforcing rod. Symmetrical limiting grooves 22 are formed on the wedge block 16, within which rollers 25 are slidably connected. A connecting shaft 24 is rotatably connected to the center of the rollers 25, and the end of the connecting shaft 24 is fixedly connected to the connecting plate 23. The design of the sliding groove 21 and rollers 25 in the wedge block 16 converts the sliding friction of the inclined reinforcing rod 14 into rolling friction, significantly reducing insertion resistance and making it easier for the inclined rod to penetrate the soil. Simultaneously, the cooperation between the connecting plate 23 and the limiting groove 22 ensures the precise movement direction of the inclined rod, preventing structural failure due to misalignment.

[0037] Further refining the design, a groove 26 is provided on the limiting plate 17, and a limiting rod 28 is fixedly connected within the groove 26. A slider 27 is slidably connected to the limiting rod 28, and the slider 27 is fixedly connected to the end of the long plate 11. A spring 29 is sleeved on the outside of the limiting rod 28, with one end of the spring 29 fixedly connected to the slider 27 and the other end fixedly connected to the inner wall of the anchor rod 1. The combination of the limiting rod 28 and the spring 29 forms a buffer limiting system. The sliding of the slider 27 within the groove 26 can adjust the displacement range of the long plate 11, preventing structural damage caused by overload. Furthermore, the spring 29 is initially in a compressed state, keeping the long plate 11 in a constant position to prevent wobbling.

[0038] The design is further refined, with a plug 2 fixedly connected to the end of anchor rod 1. The plug 2 is designed to reduce the resistance when anchor rod 1 is inserted into the soil, facilitating rapid installation. The pointed structure concentrates stress, easily penetrating hard soil or gravel layers, improving construction efficiency.

[0039] Further refining the design, brittle plates 3 are installed inside the transverse through-hole 13 and the oblique through-hole 15, respectively. The brittle plates 3 prevent soil from entering when the anchor rod 1 is inserted, and the transverse and oblique reinforcing rods can push the brittle plates 3 open. When the anchor rod 1 is inserted, the brittle plates 3 seal the through-holes, preventing soil from entering and contaminating or interfering with the mechanism's operation; when the reinforcing rod is pushed out, the brittle plates 3 break, ensuring the rod penetrates smoothly. This design balances sealing and functionality, ensuring the reliability of the device during storage and construction.

[0040] A construction method for a slope support anchoring device includes the following steps:

[0041] Drill holes in advance on the slope that needs support. Use a drilling rig to drill holes according to the design requirements. The hole diameter should be slightly larger than the diameter of anchor rod 1 (usually 20-50mm larger than the outer diameter of anchor rod 1) to ensure that anchor rod 1 can be inserted smoothly and leave space for grouting. The hole depth should meet the anchoring length requirements and take into account the characteristics of the slope soil and rock layers. After drilling, high-pressure air or water should be used to clean the residue in the hole to avoid affecting the subsequent grouting quality.

[0042] Insert the anchor rod 1 into the pre-drilled hole. The anchor rod 1 should be inserted into the hole vertically or at the designed angle. The axis should be kept consistent with the axis of the hole to avoid tilting and uneven stress on the internal structure. If the hole is deep, a vibratory hammer can be used to assist in insertion to reduce frictional resistance. At the same time, it is necessary to check whether the drive component interface at the top of the anchor rod 1 is exposed to facilitate subsequent operations.

[0043] Connect the hydraulic cylinder 5 to the top interface of the anchor rod 1 to ensure that the extrusion block 4 contacts the moving plate 20 inside the sleeve 6. Start the hydraulic cylinder 5, and the extrusion block 4 pushes the moving plate 20 down the inner wall of the sleeve 6, causing the mounting block 19 to slide in the through groove 18. Then, through the first hinge rod 7, the third hinge rod 10 and the strip plate 8, it expands outward, so that the expansion component fits tightly with the hole wall, providing initial anchoring force. Continue to pressurize, and the long plate 11 moves axially under the constraint of the limiting plate 17, pushing the transverse fastening rod 12 through the transverse through hole 13. At the same time, the wedge block 16 pushes the oblique fastening rod 14 out of the oblique through hole 15 through the structure of the sliding groove 21 and the roller 25, forming multi-directional soil penetration.

[0044] Cement grout or chemical grout is injected through the grouting pipe at the top of anchor rod 1. The grout fills the gap between anchor rod 1 and the hole wall and penetrates into the surrounding soil. After solidification, it forms an integral anchor body. The grouting pressure needs to be controlled at 0.2-0.5MPa to ensure that it is dense and free of voids. After the grout has initially set, the hydraulic cylinder 5 is disassembled and retrieved to prevent the grout from hardening and becoming impossible to separate. The top opening of anchor rod 1 is sealed with concrete or sealant to prevent moisture intrusion and corrosion of the internal structure.

[0045] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0046] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A slope support anchoring device, characterized in that: The system includes an anchor rod (1), a sleeve (6) is fixedly connected inside the anchor rod (1), a plurality of expansion components are arranged circumferentially on the outer side of the sleeve (6), a long plate (11) is arranged on the side of the expansion component away from the sleeve (6), a limit plate (17) is slidably connected to both ends of the long plate (11), the limit plate (17) is fixedly connected to the inner wall of the anchor rod (1), a plurality of reinforcing components are arranged on the long plate (11), the reinforcing components can be inserted into the surrounding soil in different directions, and a driving component for squeezing the expansion components is arranged at the top of the anchor rod (1).

2. The slope support anchoring device according to claim 1, characterized in that: The expansion assembly includes a first hinge rod (7) hinged to the outer wall of the sleeve (6), one end of the first hinge rod (7) is hinged to a strip plate (8), the other end of the strip plate (8) is hinged to a third hinge rod (10), the other end of the third hinge rod (10) is hinged to a moving member, the moving member is in contact with the drive assembly, and a second hinge rod (9) is symmetrically hinged to the middle of the strip plate (8), the other end of the second hinge rod (9) is hinged to the outer wall of the sleeve (6).

3. The slope support anchoring device according to claim 2, characterized in that: The movable component includes a mounting block (19) hinged to the third hinge rod (10), a movable plate (20) is slidably connected inside the sleeve (6), the driving component is in contact with the movable plate (20), the movable plate (20) is fixedly connected to the mounting block (19), and a plurality of through slots (18) are circumferentially opened on the outer side of the sleeve (6), the mounting block (19) is located in the through slots (18) and is slidably connected to the through slots (18).

4. The slope support anchoring device according to claim 3, characterized in that: The drive assembly includes a hydraulic cylinder (5), and an extrusion block (4) is fixedly connected to the output end of the hydraulic cylinder (5). The extrusion block (4) extends into the sleeve (6) and contacts the moving plate (20).

5. The slope support anchoring device according to claim 1, characterized in that: The reinforcement assembly includes a transverse fastening rod (12) fixedly connected to the long plate (11), a wedge block (16) is provided on one side of the transverse fastening rod (12), the wedge block (16) is fixedly connected to the long plate (11), an oblique fastening rod (14) is slidably connected to the wedge block (16), a plurality of transverse through holes (13) are provided on the anchor rod (1), the transverse fastening rod (12) is adapted to the transverse through holes (13), a plurality of oblique through holes (15) are provided on the anchor rod (1), the oblique fastening rod (14) is adapted to the oblique through holes (15).

6. The slope support anchoring device according to claim 5, characterized in that: The wedge block (16) has a sliding groove (21), and a connecting plate (23) is slidably connected in the sliding groove (21). The connecting plate (23) is fixedly connected to the inclined reinforcing rod. The wedge block (16) has symmetrical limit grooves (22), and a roller (25) is slidably connected in the limit groove (22). A connecting shaft (24) is rotatably connected to the center of the roller (25), and the end of the connecting shaft (24) is fixedly connected to the connecting plate (23).

7. The slope support anchoring device according to claim 1, characterized in that: The limiting plate (17) has a groove (26) and a limiting rod (28) is fixedly connected in the groove (26). A slider (27) is slidably connected on the limiting rod (28). The slider (27) is fixedly connected to the end of the long plate (11). A spring (29) is sleeved on the outside of the limiting rod (28). One end of the spring (29) is fixedly connected to the slider (27), and the other end of the spring (29) is fixedly connected to the inner wall of the anchor rod (1).

8. The slope support anchoring device according to claim 1, characterized in that: The anchor rod (1) is fixedly connected to a plug (2) at its end.

9. The slope support anchoring device according to claim 5, characterized in that: A brittle plate (3) is installed in the transverse through hole (13) and the oblique through hole (15). The brittle plate (3) is used to prevent soil from entering the interior when the anchor rod (1) is inserted, and the transverse reinforcing rod and the oblique reinforcing rod can push the brittle plate (3) open.

10. A construction method for a slope support anchoring device, wherein the slope support anchoring device according to any one of claims 1-9 is characterized in that, Includes the following steps: Drill holes in advance on the slopes that require support; Insert the anchor rod (1) into the pre-drilled hole; The drive component extends into the sleeve (6) and opens the expansion component, pushing the reinforcement component out of the anchor rod (1) and inserting it into the surrounding soil to complete the fastening; Grout the anchor rod (1), and after the grout solidifies, remove the drive assembly. Finally, seal the top of the anchor rod (1).

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