Microseismic monitoring sensor installation device and installation method

Abstract

The invention relates to a microseismic monitoring sensor installation device and an installation method. The installation device comprises a fixation sleeve, an anchoring agent container and a microseismic monitoring sensor. The fixation sleeve is arranged in a monitoring hole cut out in a rock mass. A positioning installation plate is horizontally arranged on one side, which is close to the monitoring hole, of the inside fixation sleeve. One end of the anchoring agent container which accommodates an anchoring agent is provided with an opening. The opening end tightly fits the positioning installation plate through the anchoring agent. The other end of the anchoring agent container is fixedly connected with the microseismic monitoring sensor. According to the invention, the fixation sleeve is arranged in the monitoring hole; the microseismic monitoring sensor is arranged on the positioning installation plate in the fixation sleeve; the monitoring effect is ensured; installation and maintenance are easy; the sensor is safely recovered; noise disturbance is reduced; and the sensor is prevented from accidental damage.

Description

technical field [0001] The invention relates to a microseismic monitoring device for monitoring microfracture signals inside a rock mass, in particular to a microseismic monitoring sensor installation device and an installation method. Background technique [0002] The research on rock engineering dynamic hazards shows that whether it is rock burst, mine earthquake and other coal mine dynamic hazards, or rock engineering dynamic disaster instability, it is related to the micro-crack initiation, The result of rock fracture process instability such as development and penetration. Any rock mass usually produces many small micro-cracks before the macro-destruction. Therefore, no matter what kind of rock dynamic disaster, in most cases, there are precursors of microfracture before the dynamic disaster occurs. The direct cause of microfracture activity is the result of increased stress or strain in the rock formation. These microfractures generate elastic waves in the form of e...

AI Technical Summary

Problems solved by technology

If the sensor is installed at the bottom of the hole, it is difficult to install and overhaul. At the same time, because the working face to be monitored is often buried deep and the ground stress is high, hole collapse or serious deformation of the drilled hole is very likely to occur, and the sensor cannot be recovered or fails. The probability is high, which will affect the monitoring effect and greatly increase the monitoring cost

If the sensor is installed at the end of the bolt exposed on the cave wall, it will increase noise interference, increase the probability of the sensor being accidentally damaged by mechanical equipment or falling rocks, and the positioning accuracy will also be affected to a certain extent

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