煤柱宽度变化区微震监测冲击矿压前兆信息分析

Analysis of Rock Burst Precursory Information with Microseismic Monitoring at Coal Pillar Width Variation Area

以某矿2102工作面回风巷为研究对象,统计分析其掘进过程中过煤柱宽度变化区的微震监测数据,研究矿震参量变化规律、分析强矿震前兆信息,并提出煤柱宽度变化区冲击矿压防治措施,取得了良好的控制效果,保障了掘进面过煤柱变化区的安全生产。

We take 2102 working face return airway in a mine as the research object,and carry out statistical analysis of the tunneling process changes in coal pillar width by the microseismic monitoring data,study mine earthquake parameter change law,analyze strong mining-induced earthquake precursor information,and propose the coal pillar width changes area rock-burst prevention measures,and achieve good control effect,which ensures the safety production of heading face to pass through the coal pillar variation areas.