A coal mine rock burst prediction and early warning system and method

Abstract

The invention discloses a coal mine rock burst prediction and early warning method. A coal mine rock burst prediction and early warning system is used to first determine the roadway that needs to be monitored; Monitoring system and ground sound monitoring system, install a comprehensive early warning system for rock burst on the ground, integrate the SOS microseismic monitoring system, online coal stress monitoring system and ground sound monitoring system into the comprehensive early warning system for rock burst; The comprehensive early warning platform carries out impact early warning, timely supplements data and continuously improves the system; this method is suitable for the development of deep mines containing geological structure areas or the preparation of roadway rock burst early warning, which can accurately predict impact and take pressure relief measures in advance to avoid personal injury .

Description

Technical field [0001] The present invention belongs to the field of coal mine safety monitoring technology, specifically relates to a coal mine impact ground pressure prediction and early warning system. [0002] The present invention further relates to a coal mine impact ground pressure prediction early warning method. Background [0003] Impact ground pressure refers to the dynamic phenomenon of sudden and violent destruction of coal rock mass due to the instantaneous release of elastic deformation energy around coal mine lane or working surface, often accompanied by instantaneous displacement, ejection, loud noise and air waves of coal rock mass. At present, the methods of shock ground pressure monitoring and early warning mainly include microseismic method, electromagnetic radiation method, coal seam stress method, drilling chip method, etc. [0004] The microseismic method is based on the microwave signal emitted during the rupture of the rock mass, which is a regional mon...

AI Technical Summary

Problems solved by technology

The current coal seam stress method can only monitor the stress increment in the coal seam, but cannot obtain the real three-dimensional stress of the coal seam, and the change of the data of the hard coal seam is not obvious

Drilling cuttings method is greatly affected by personnel operation and has low precision

The traditional monitoring and early warning system has certain limitations and cannot provide good early warning of rock burst

[0005] The roadway area of ​​coal mines is generally far away from the goaf, and is less affected by mining activities. The previous stress monitoring method, cuttings method, electromagnetic radiation method and microseismic monitoring method cannot effectively monitor the rock burst in the roadway area.

The underground environment is more complicated than that on the ground. Once a rock burst disaster occurs, it will often result in the death of personnel who cannot be treated in time, and will also cause great damage to underground equipment.