摘要
根据郓城煤矿微震监测系统的监测结果,分析了1300工作面开采强度和推进速度对微震活动的影响、1300工作面微震事件能量分布和工作面内微震活动分布规律。结果表明:微震活跃度与开采强度和推进速度成正相关,推进度的剧烈变化会导致大能量事件发生;并通过对微震事件分布规律的分析确定了1300工作面开采影响范围和高冲击危险区域。
According to the monitoring results of micro-seismic monitoring system in Yuncheng Coal Mine, the influences of mining intensity and advance speed on micro-seismic activities in No. 1300 working face, the energy distribution of micro-seismic incidents, and the distribution law of micro-seismic activities were analyzed. The results indicated that there was a positive correlation between the micro-seismic activities and the mining intensity or working face advance speed, the macro-energy incidents happened when the face advance changed violently. Through the analysis of micro-seismic incidents＇ distribution law, mining influence ranges and the dangerous zones of high impact were analyzed and determined.
出处
《中国煤炭》
北大核心
2015年第9期28-31,共4页
China Coal
关键词
微震
开采强度
推进速度
冲击地压
micro-seismic, mining intensity, working face advance speed, rock burst
