Surface mine slope reinforcing structure

Abstract

The utility model discloses a surface mine side slope reinforcing structure which comprises a reinforcing unit and a vibration reduction unit which are arranged on a side slope body, the reinforcing unit comprises a hollow rod and a side slope net, the hollow rod is inserted into the side slope body, a plurality of grouting holes are formed in the lower portion of the outer wall of the hollow rod, and a plurality of fixing rings are arranged on the side slope net. The fixing ring is in threaded connection with the hollow rod; the vibration reduction unit comprises a vibration reduction connecting frame and vibration reduction platforms, the vibration reduction connecting frame is connected with the hollow rod through connecting holes, the two ends of the vibration reduction connecting frame are connected with the vibration reduction platforms above and below the vibration reduction connecting frame, and the vibration reduction platforms are arranged on a platform of the slope body. During construction, slurry is injected into the hollow rod, the slurry is solidified after being injected into the mine side slope, the effect of reinforcing the mine side slope can be achieved, meanwhile, the vibration reduction connecting frame is connected with the hollow rod, when the mine side slope vibrates, vibration is transmitted to the hollow rod and the vibration reduction connecting frame and then transmitted to the vibration reduction platform, and the effects of reinforcing the side slope and preventing the side slope from losing stability are further achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of mine slope reinforcement, in particular to an open-pit mine slope reinforcement structure. Background Art

[0002] The transition from open pit to underground mining typically involves three stages: a single open pit mining period, a period of simultaneous open pit and underground mining (also known as a transition period), and a single underground mining period. The transition from open pit to underground mining differs from both single open pit and single underground mining, and is not simply a random combination of the two. During the transition from open pit to underground mining, compared to simple open pit mining, a complex stress field formed by the combined effects of open pit and underground mining is created. The goafs created by tunneling, underground mining, and vibrations from blasting can all cause deformation of the surrounding rock above and below the ore body. In severe cases, this can cause the overlying rock mass above the goaf to bend, crack, or even collapse, resulting in changes in the surrounding rock strength. When this deformation is fed back to the surface, it can cause ground subsidence, collapse, and slope instability.

[0003] Mine slopes are stepped, making them prone to collapse and landslides. Existing mine slope reinforcement structures typically use protective nets, which are placed over the slopes and then secured with screws. This method is overly simple and offers limited protection. Utility Model Content

[0004] The purpose of the utility model is to provide an open-pit mine slope reinforcement structure to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an open-pit mine slope reinforcement structure, comprising a reinforcement unit and a vibration-damping unit arranged on a slope main body, the reinforcement unit comprising a hollow rod and a slope net, the hollow rod being inserted into the slope main body, a plurality of grouting holes being provided on the lower portion of the outer wall of the hollow rod, an external thread being provided on the upper end of the hollow rod, a plurality of fixing rings being provided on the slope net, an internal thread matching the external thread being formed on the inner wall of the fixing ring, and the fixing ring and the hollow rod being connected by threads; the vibration-damping unit comprising a vibration-damping connecting frame and a vibration-damping platform, the vibration-damping connecting frame being provided with a plurality of connecting holes; the hollow rod being inserted into the connecting hole, the two ends of the vibration-damping connecting frame being connected to the vibration-damping platforms above and below it, and the vibration-damping platform being provided on the platform of the slope main body.

[0006] Preferably, the hollow rod includes an inner rod portion and a sleeve rod portion, both the inner rod portion and the sleeve rod portion are hollow structures, the inner rod portion is located in the sleeve rod portion, and the length of the inner rod portion is greater than that of the sleeve rod portion, the grouting holes are all arranged on the inner rod portion, and the lower part of the inner rod portion and the bottom of the sleeve rod portion are fixedly sealed and connected by a rubber sealing sleeve.

[0007] Preferably, a plurality of vibration-damping rubber rings are provided inside the sleeve rod portion, and the vibration-damping rubber rings abut against the inner rod portion.

[0008] Preferably, the connection hole of the vibration-damping connection frame is connected to the inner rod portion, and the fixing ring is threadedly connected to the sleeve rod portion.

[0009] Preferably, the inner rod is inserted into the connecting hole and fixed by welding.

[0010] Preferably, the arrangement density of the hollow rods is lower as they are closer to the upper part of the slope body.

[0011] Preferably, a vibration-damping spring is provided on the vibration-damping platform, and the vibration-damping connecting frame is connected to the vibration-damping spring.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0013] 1. This open-pit mine slope reinforcement structure is achieved by installing a hollow rod consisting of an inner rod and a sleeve rod on the mine slope. The inner rod can be grouting and solidifying the soil layer deep in the mine slope, making the reinforced mine slope less prone to landslides. At the same time, a number of vibration-damping rubber rings are installed in the sleeve rod portion of the hollow rod. When the inner rod is vibrated, it contacts the vibration-damping rubber rings, which can play a role in vibration reduction and energy dissipation.

[0014] 2. This open-pit mine slope reinforcement structure uses a vibration-damping connecting frame to connect the inner rod and the vibration-damping platform, which transmits the vibration of the inner rod to the vibration-damping platform and reduces the vibration through the vibration-damping spring, thereby further reinforcing the slope and preventing the slope from becoming unstable. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the connection structure of the vibration-damping platform and the vibration-damping connecting frame of the utility model;

[0017] Figure 3 It is a schematic diagram of the installation structure of the hollow rod, the vibration-damping connecting frame and the slope net of the utility model.

[0018] In the figure: 1. Slope body; 2. Vibration-damping platform; 3. Vibration-damping connecting frame; 4. Hollow rod; 5. Slope net; 6. Connecting hole; 7. Vibration-damping spring; 8. Rod sleeve; 9. Inner rod; 10. Grouting hole; 11. Vibration-damping rubber ring; 12. Rubber sealing sleeve; 13. Fixed ring. DETAILED DESCRIPTION

[0019] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] See also Figure 1-3 In this embodiment, an open-pit mine slope reinforcement structure includes a reinforcement unit and a vibration reduction unit arranged on a slope body 1. The reinforcement unit includes a hollow rod 4 and a slope net 5. The hollow rod 4 is inserted into the slope body 1. The closer the hollow rod 4 is to the upper part of the slope body 1, the lower the density of the arrangement, and the smaller the grouting pressure and grouting amount in the hollow rod 4. The lower part of the outer wall of the hollow rod 4 is provided with a plurality of grouting holes 10, the upper end of the hollow rod 4 is provided with an external thread, and the slope net 5 is provided with a plurality of fixing rings 13. The inner wall of the fixing ring 13 is formed with a plurality of fixing rings 13. It is formed with an internal thread that matches the external thread, and the fixing ring 13 is connected to the hollow rod 4 by a threaded connection; wherein, before the hollow rod 4 is laid out, the arrangement position is pre-designed, and then sufficient fixing rings 13 are installed on the slope net 5 according to the position; the vibration reduction unit includes a vibration reduction connecting frame 3 and a vibration reduction platform 2, and the vibration reduction connecting frame 3 is provided with a plurality of connection holes 6; the hollow rod 4 is inserted into the connection hole 6, and the two ends of the vibration reduction connecting frame 3 are connected to the vibration reduction platform 2 above and below it, and the vibration reduction platform 2 is provided on the platform of the slope main body 1. When in use, the hollow rod 4 can be inserted into the slope main body 1, and then grouting can be injected into the hollow rod 4. The slurry is injected into the mine slope and solidifies, which can play a role in reinforcing the mine slope. At the same time, the hollow rod 4 is used as a fixed structure for installing the slope net 5, saving materials. In this embodiment, a vibration-damping connecting frame 3 and a vibration-damping platform 2 are provided, wherein the vibration-damping connecting frame 3 can be connected to the hollow rod 4. When the mine slope vibrates, the vibration is transmitted to the hollow rod 4 and the vibration-damping connecting frame 3, and then to the vibration-damping platform 2. The vibration-damping platform 2 is arranged on the platform of the slope body 1. When affected by vibration, it is more stable than the slope. Generally, the platform of the slope is the boundary top pillar of the mine, and the boundary top pillar is more stable than the slope of the filling layer.

[0021] The hollow rod 4 in this embodiment includes an inner rod portion 9 and a sleeve rod portion 8. Both the inner rod portion 9 and the sleeve rod portion 8 are hollow structures. The inner rod portion 9 is located in the sleeve rod portion 8, and the length of the inner rod portion 9 is greater than the sleeve rod portion 8. The grouting holes 10 are all provided on the inner rod portion 9. The lower part of the inner rod portion 9 is fixedly sealed and connected to the bottom of the sleeve rod portion 8 by a rubber sealing sleeve 12. The inner rod portion 9 is used as a grouting pipe and can be used to transport slurry. The length of the inner rod portion 9 is greater than the sleeve rod portion 8, so the inner rod portion The insertion depth of the inner rod 9 is relatively deep, so it can reinforce the deep slope, and the sleeve rod part 8 serves as the guide and positioning structure of the inner rod part 9; wherein, a plurality of vibration-damping rubber rings 11 are arranged inside the sleeve rod part 8, and the vibration-damping rubber rings 11 are in contact with the inner rod part 9. When the mine slope is vibrated, the inner rod part 9 forms a whole with the condensed slurry and filling layer and has a deeper depth, so it is more affected by the vibration, and the vibration-damping rubber rings 11 of the sleeve rod part 8 can play the role of reducing vibration and consuming energy.

[0022] In the above embodiment, the connecting hole 6 of the vibration-damping connecting frame 3 is connected to the inner rod portion 9 and fixed by welding. The fixing ring 13 is threadedly connected to the sleeve rod portion 8. A vibration-damping spring 7 is provided on the vibration-damping platform 2. The vibration-damping connecting frame 3 is connected to the vibration-damping spring 7. The vibration-damping connecting frame 3 can transmit the vibration to the vibration-damping platform 2, and can play a good vibration-damping role through the vibration-damping spring 7.

[0023] During the specific construction: the layout of the hollow rods 4 and the position of the fixing rings 13 of the slope net 5 are designed in advance. After the design is completed, the hollow rods 4 are driven into the slope body 1, and then grouting is injected into the inner rod part 9. After the grouting is completed, the slope net 5 is laid. During the laying process, the corresponding fixing rings 13 are threadedly connected to the sleeve rod part 8. After rotating the fixing rings 13 several times, the slope net 5 can be tightened to improve the protective effect. Then, the vibration-damping platform 2 and the vibration-damping connecting frame 3 are installed, wherein the vibration-damping platform 2 is set on the platform of the slope body 1, and the connecting hole 6 of the vibration-damping connecting frame 3 is connected to the inner rod part 9 and fixed by welding or other methods. After the vibration-damping connecting frame 3 is connected to the vibration-damping spring 7 of the vibration-damping platform 2, the installation is completed.

[0024] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0025] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An open-pit mine slope reinforcement structure, comprising a reinforcement unit and a vibration reduction unit arranged on a slope body (1), characterized in that: The reinforcement unit comprises a hollow rod (4) and a slope net (5), wherein the hollow rod (4) is inserted into the slope body (1), a plurality of grouting holes (10) are provided on the lower part of the outer wall of the hollow rod (4), an external thread is provided on the upper end of the hollow rod (4), and a plurality of fixing rings (13) are provided on the slope net (5), an internal thread matching the external thread is formed on the inner wall of the fixing ring (13), and the fixing ring (13) and the hollow rod (4) are connected by a thread; the vibration reduction unit comprises a vibration reduction connecting frame (3) and a vibration reduction platform (2), wherein the vibration reduction connecting frame (3) is provided with a plurality of connecting holes (6); the hollow rod (4) is inserted into the connecting hole (6), and the two ends of the vibration reduction connecting frame (3) are connected to the vibration reduction platforms (2) above and below it, and the vibration reduction platform (2) is provided on the platform of the slope body (1).

2. The open-pit mine slope reinforcement structure according to claim 1, characterized in that: The hollow rod (4) comprises an inner rod portion (9) and a sleeve rod portion (8); the inner rod portion (9) and the sleeve rod portion (8) are both hollow structures; the inner rod portion (9) is located in the sleeve rod portion (8); and the length of the inner rod portion (9) is greater than that of the sleeve rod portion (8); the grouting holes (10) are all arranged on the inner rod portion (9); and the lower portion of the inner rod portion (9) and the bottom of the sleeve rod portion (8) are fixedly sealed and connected via a rubber sealing sleeve (12).

3. The open-pit mine slope reinforcement structure according to claim 2, characterized in that: A plurality of vibration-damping rubber rings (11) are arranged inside the sleeve rod portion (8), and the vibration-damping rubber rings (11) are in contact with the inner rod portion (9).

4. The open-pit mine slope reinforcement structure according to claim 3, characterized in that: The connection hole (6) of the vibration-damping connecting frame (3) is connected to the inner rod portion (9), and the fixing ring (13) is threadedly connected to the sleeve rod portion (8).

5. The open-pit mine slope reinforcement structure according to claim 4, characterized in that: The inner rod portion (9) is inserted into the connecting hole (6) and fixed by welding.

6. The open-pit mine slope reinforcement structure according to claim 1, characterized in that: The arrangement density of the hollow rods (4) decreases as they are closer to the upper portion of the slope body (1).

7. The open-pit mine slope reinforcement structure according to claim 1, characterized in that: A vibration-damping spring (7) is provided on the vibration-damping platform (2), and the vibration-damping connecting frame (3) is connected to the vibration-damping spring (7).

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