Monitoring and coupling integrated protection device for deep mine rock burst

Abstract

The invention belongs to the field of mine supporting equipment, and particularly discloses a monitoring and coupling integrated protection device for deep mine rock burst. The monitoring and coupling integrated protection device comprises an anchor cable, an anchor rod, an anchor net, arc-shaped steel and a supporting beam, the arc-shaped steel and the supporting beam play a supporting role, the anchor cable and the anchor rod are inserted into a drill hole poured with cement grout in a rock wall, one end of the anchor cable is fixedly provided with a stress sensor used for monitoring rock stratum rock burst, the other end of the anchor cable extends into a first cavity formed in one end of the anchor rod, a hydraulic telescopic rod is installed in the first cavity, and one side of a hydraulic pump is electrically connected with a PLC. The change condition of rock wall rock burst near a mine is monitored in real time through the stress sensor, when the rock burst is increased, the hydraulic pump drives the hydraulic telescopic rod to extend, so that the anchor rod and the anchor cable integrally extend, force unloading is carried out, the anchor rod and the anchor cable are prevented from being fractured due to overlarge stress, when the rock burst is reduced, the hydraulic pump drives the hydraulic telescopic rod to shorten, so that the anchor rod and the anchor cable integrally shorten, and surrounding rock of a roadway is further reinforced.

Description

technical field [0001] The invention belongs to the field of mine support equipment, and specifically discloses a monitoring and coupling integrated protection device for deep mine rock burst. Background technique [0002] Rockburst, also known as rockburst, refers to the phenomenon of sudden failure in the surrounding rock mass in the deep part of underground mining or in areas with high structural stress. The reason for this is the accumulated strain of the surrounding rock mass. It can be released suddenly and violently, causing the rock mass to undergo brittle fracture like an explosion. The impact of rock pressure will cause a large number of rocks to avalanche, and produce loud sound and air wave impact. Not only can the mine be destroyed, but the shock wave can endanger the ground buildings. [0003] In deep mines, various support mechanisms are used to support the mine roadway, ease and reduce the movement of surrounding rock, so that the section of the roadway will ...

AI Technical Summary

Problems solved by technology

[0003] In deep mines, various support mechanisms are used to support the mine roadway, ease and reduce the movement of surrounding rock, so that the section of the roadway will not be excessively reduced, and at the same time prevent the scattered and damaged surrounding rock from falling, such as using bolts The surrounding rock of the roadway is reinforced together so that the surrounding rock can support itself to achieve the purpose of strengthening the rock wall; however, in deep mines, the geological conditions are complex, and the impact pressure changes in real time. The stress generated by ordinary bolt support It cannot change with the change of rock burst. At this time, it is easy to cause the bolt to break, making the bolt support invalid, and the later maintenance is very difficult.

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