Multi-parameter monitoring device and method for rock burst in coal mine main roadway area

Abstract

The invention discloses a multi-parameter monitoring device and method for rock burst in a coal mine main roadway area. The device comprises a drilling stress monitoring device, a drilling deformationmonitoring device, a plurality of monitoring substations, a monitoring master station and a ground terminal. One end of the drilling stress monitoring device is arranged in a stress monitoring drilling hole of one side of the roadway, the other end of the drilling stress monitoring device is fixed at the side part of the roadway, and the two ends of the drilling stress monitoring device are connected through a liquid guide pipe. One end of the drilling deformation monitoring device is arranged in a deformation monitoring drilling hole of one side of the roadway, the other end of the drillingdeformation monitoring device is fixed at the side part of the roadway, and the two ends of the drilling deformation monitoring device are connected through a liquid guide pipe. The drilling stress and deformation monitoring devices monitor drilling stress and deformation signals in real time and transmit the signals to the nearby monitoring substations through a communication cable; each monitoring substation transmits monitoring signals to the monitoring master station through optical fibers, and the monitoring master station transmits all monitoring signals to the ground terminal through aring network. The device has the characteristics of flexibility, reliability, good monitoring effect, low cost and the like, and can be widely applied to prediction and early warning of rock burst inthe coal mine main roadway area.

Description

technical field [0001] The invention belongs to the technical field of coal mine safety monitoring, in particular to a multi-parameter monitoring device and method for rock burst in a coal mine roadway area. Background technique [0002] Rockburst is a serious dynamic disaster faced by deep coal mining, which can easily cause casualties and damage to roadways and equipment. Rockburst prevention involves rockburst classification, impact risk assessment, pressure relief, There are many links such as impact risk monitoring, risk relief effect inspection, impact risk area support, material and personnel management, etc. Among them, impact risk monitoring is a key link in preventing and controlling rock burst disasters. [0003] In order to monitor the risk of impact, rock burst mines mainly use the microseismic monitoring method for regional monitoring, and the stress monitoring method, drilling cuttings method, electromagnetic radiation method, etc. for local monitoring; the mi...

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Problems solved by technology

[0005] In order to solve the technical defects such as incompleteness and inaccuracy in the above method, the present invention belongs to coal mine safety monitoring and early warning equipment, and particularly relates to a multi-parameter monitoring device and method for rock burst in a coal mine roadway area;

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