A dangerous rock anchor rod reinforcing structure

Abstract

The utility model discloses a dangerous rock anchor rod reinforcing structure, including stable rock mass and the dangerous rock body of stable rock mass downside, the dangerous rock body downside horizontal first borehole that sets up, first anchor rod is provided in first borehole inside, first anchor rod part from first borehole inside stretches out, first anchor rod stretches out part upside is provided with the bearing plate, the utility model relates to dangerous rock reinforcing technical field, through horizontal first borehole and install first anchor rod in dangerous rock body downside, cooperate bearing plate, auxiliary support structure etc, need not additional excavation top space, effectively avoided the break to dangerous rock stability, simultaneously, utilize second, third anchor rod and steel strand etc. parts, form multilayer, all -round reinforcing system, greatly enhanced the overall stability of dangerous rock body, significantly reduced the collapse risk, guaranteed the personnel life safety, infrastructure and ecological environment of lower and surrounding area.

Description

Technical Field

[0001] This utility model relates to the field of rock reinforcement technology, specifically a rock anchor reinforcement structure. Background Technology

[0002] my country has a vast territory and complex and diverse geological conditions. A large number of unstable rock masses are widely distributed in mountainous and hilly areas. Unstable rock masses refer to rock masses located on steep slopes or cliffs that are unstable due to various geological factors and may collapse at any time. These unstable rock masses pose a serious threat to the safety of people, infrastructure and ecological environment in the areas below and around them.

[0003] For some unstable rocks that may collapse, there is a lack of sufficient support space at the top, or a lack of space to install supports. This necessitates manual excavation of support space, which is detrimental to the stability of the unstable rock itself and also greatly increases the workload. Utility Model Content

[0004] The present invention aims to provide a rock anchor reinforcement structure that can effectively avoid damage to the stability of the rock mass, enhance the overall stability of the rock mass, and reduce the risk of collapse.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a rock anchor reinforcement structure, including a stable rock mass and a rock mass located below the stable rock mass, wherein a first borehole is horizontally arranged below the rock mass, a first anchor is arranged inside the first borehole, a portion of the first anchor extends out from inside the first borehole, and a bearing plate is arranged on the upper side of the extended portion of the first anchor.

[0006] A second borehole is provided on the upper side of the stable rock mass, and a second anchor rod is installed inside the second borehole. A third borehole is provided on the upper side of the unstable rock mass, and a third anchor rod is installed inside the third borehole. Limiting plates are provided on the upper surfaces of both the second and third anchor rods. A connecting seat is provided on the upper side of the limiting plate, and a steel strand is connected to the upper side of the connecting seat. A tie rod is bolted to the upper side of the bearing plate. A tie rod seat is provided on the upper side of the stable rock mass, and an auxiliary support structure is provided on the lower side of the bearing plate.

[0007] In the above scheme: the auxiliary support structure includes an auxiliary support rod, the upper side of which is connected to the lower side of the bearing plate by bolts, and a base frame is provided on the lower side of the auxiliary support rod, which is connected to the lower side of the stable rock mass.

[0008] In the above scheme: a sleeper is provided on the upper side of the bearing plate, and a rubber layer is provided on the upper side of the sleeper.

[0009] In the above scheme: the bearing plate is connected to the first anchor rod by U-bolts.

[0010] In the above scheme: the first anchor rod, the second anchor rod, and the third anchor rod are all provided with through holes on their surfaces, and the first anchor rod, the second anchor rod, and the third anchor rod are all provided with grouting ports on one side.

[0011] This utility model provides a rock anchor reinforcement structure with the following advantages: By setting a first borehole horizontally on the lower side of the rock mass and installing a first anchor, along with a bearing plate and auxiliary support structure, no additional excavation of the top space is required, effectively avoiding damage to the stability of the rock mass. At the same time, by utilizing second and third anchors and steel strands, a multi-layered and all-round reinforcement system is formed, which greatly enhances the overall stability of the rock mass, significantly reduces the risk of collapse, protects the lives of people, infrastructure and ecological environment in the area below and around the rock mass, and greatly improves the efficiency and effectiveness of reinforcement. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the main structure of this utility model.

[0013] Figure 2 This is a partially enlarged structural schematic diagram of the present invention.

[0014] Figure 3 This is a side view of the bearing plate structure of this utility model.

[0015] In the diagram: 1. Stable rock mass, 2. Dangerous rock mass, 3. First anchor bolt, 4. Bearing plate, 5. Second anchor bolt, 6. Third anchor bolt, 7. Limiting plate, 8. Connecting seat, 9. Steel strand, 10. Tie rod, 11. Tie rod seat, 12. Auxiliary support rod, 13. Base frame, 14. Sleeper, 15. Rubber layer, 16. U-bolt. Detailed Implementation

[0016] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0017] like Figures 1-3 As shown, a rock anchor reinforcement structure includes a stable rock mass 1 and a rock mass 2 located below the stable rock mass 1.

[0018] A first borehole is horizontally arranged on the lower side of the unstable rock mass 2. A first anchor rod 3 is installed inside the first borehole. A portion of the first anchor rod 3 extends out from inside the first borehole. A bearing plate 4 is installed on the upper side of the extended portion of the first anchor rod 3.

[0019] A second borehole is provided on the upper side of the stable rock mass 1, and a second anchor rod 5 is installed inside the second borehole. A third borehole is provided on the upper side of the unstable rock mass 2, and a third anchor rod 6 is installed inside the third borehole. Limiting plates 7 are provided on the upper surfaces of the second anchor rod 5 and the third anchor rod 6. A connecting seat 8 is provided on the upper side of the limiting plate 7. Steel strands 9 are connected to the upper side of the connecting seat 8. A tie rod 10 is bolted to the upper side of the bearing plate 4. A tie rod 10 seat is provided on the upper side of the stable rock mass 1. An auxiliary support structure is provided on the lower side of the bearing plate 4.

[0020] The auxiliary support structure includes an auxiliary support rod 12, the upper side of which is connected to the lower side of the bearing plate 4 by bolts, and a base frame 13 is provided on the lower side of the auxiliary support rod 12, which is connected to the lower side of the stable rock mass 1.

[0021] During the assembly process, firstly, a first borehole and a second borehole are drilled in the stable rock mass 1 using small instruments, and the first anchor rod 3 and the second anchor rod 5 are inserted into the corresponding boreholes. Then, concrete is injected into the boreholes through the grouting port, and the bearing plate 4 is fixed to the upper side of the first anchor rod 3 using U-bolts 16 and nuts. Subsequently, sleepers 14 and rubber layers 15 are placed on the bearing plate 4, and the rubber layers 15 are made to contact the lower side of the unstable rock mass 2. The base frame 13 is fixed to the lower side of the rock mass using anchor rods, and the auxiliary support rod 12 is connected to the lower side of the bearing plate 4 using bolts. At this time, the above operations can provide preliminary support for the lower side of the unstable rock mass 2.

[0022] Afterwards, the operators fixed the tie rod 10 to the upper side of the stable rock mass 1 using anchor bolts, and used bolts to connect the lower side of the tie rod 10 to the upper side of the bearing plate 4, increasing the bearing capacity of the bearing plate 4 and providing upward tension to the bearing plate 4, further enhancing the reinforcement effect of the unstable rock mass 2.

[0023] After the above operations are completed, the unstable rock mass 2 has good stability. At this time, the operator uses the equipment to drill a third borehole on the upper side of the unstable rock mass 2, places the third anchor rod 6 inside the borehole, and performs grouting. Then, the connecting seat 8 on the upper side of the second anchor rod 5 and the third anchor rod 6 is connected by steel strand 9. The surfaces of the first anchor rod 3, the second anchor rod 5, and the third anchor rod 6 are all provided with through holes, and grouting ports are provided on one side of the first anchor rod 3, the second anchor rod 5, and the third anchor rod 6 to increase the grouting effect and uniformity, thereby ensuring the strength of the anchor rods.

[0024] In summary, this technical solution, by horizontally drilling a first hole and installing a first anchor rod 3 on the lower side of the unstable rock mass 2, in conjunction with a bearing plate 4 and auxiliary support structures, eliminates the need for additional excavation of the top space, effectively avoiding damage to the stability of the unstable rock mass. At the same time, by utilizing the second and third anchor rods and steel strands 9, a multi-layered and all-round reinforcement system is formed, which greatly enhances the overall stability of the unstable rock mass 2, significantly reduces the risk of collapse, and enables the unstable rock mass 2 to be subjected to strong anchoring effects at multiple points and in multiple directions.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rock anchor reinforcement structure, comprising a stable rock mass (1) and a rock mass (2) located below the stable rock mass (1), characterized in that, A first borehole is horizontally arranged on the lower side of the dangerous rock mass (2), and a first anchor rod (3) is arranged inside the first borehole. The first anchor rod (3) extends out from the first borehole, and a bearing plate (4) is arranged on the upper side of the extended part of the first anchor rod (3). A second borehole is provided on the upper side of the stable rock mass (1), and a second anchor rod (5) is provided inside the second borehole. A third borehole is provided on the upper side of the unstable rock mass (2), and a third anchor rod (6) is provided inside the third borehole. Limiting plates (7) are provided on the upper surfaces of the second anchor rod (5) and the third anchor rod (6). A connecting seat (8) is provided on the upper side of the limiting plate (7). A steel strand (9) is connected to the upper side of the connecting seat (8). A tie rod (10) is connected to the upper side of the bearing plate (4) by bolts. A tie rod (10) seat is provided on the upper side of the stable rock mass (1). An auxiliary support structure is provided on the lower side of the bearing plate (4).

2. The rock anchor reinforcement structure according to claim 1, characterized in that, The auxiliary support structure includes an auxiliary support rod (12), the upper side of which is connected to the lower side of the bearing plate (4) by bolts, and a base frame (13) is provided on the lower side of the auxiliary support rod (12), which is connected to the lower side of the stable rock mass (1).

3. The rock anchor reinforcement structure according to claim 1, characterized in that, A sleeper (14) is provided on the upper side of the bearing plate (4), and a rubber layer (15) is provided on the upper side of the sleeper (14).

4. The rock anchor reinforcement structure according to claim 1, characterized in that, The bearing plate (4) is connected to the first anchor rod (3) by U-bolts (16).

5. The rock anchor reinforcement structure according to claim 1, characterized in that, The first anchor rod (3), the second anchor rod (5) and the third anchor rod (6) are all provided with through holes on their surfaces, and each of the first anchor rod (3), the second anchor rod (5) and the third anchor rod (6) is provided with a grouting port on one side.

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