Coal and Gas Outburst Early-warning Method and System Based on Mining Progress Monitoring

From the angle of safe distance control of hazards, the paper studied the mechanism, indicators, grade and rules of coal and gas outburst early-warning, and then an early-warning method based on mining progress monitoring is formed. At the same time, the GJJ100 laser range sensor and early-warning software were developed. Finally, taking coal mine safety monitoring system, underground ethernet ring network and ground office network as the support, the coal and gas outburst early-warning system based on mining progress monitoring is built, which implements spatial distance on-line monitoring and real time early-warning between workface and coal and gas outburst easy-happening area.