摘要
龙家堡矿409工作面的采深已接近1000m,大大超过了冲击地压频繁发生的临界采深,目前时常发生较为明显的动力现象。采用微震监测系统对工作面内的煤岩震动信息进行监测,根据震源情况确定破裂尺度和性质,并通过微震监测获得的微震活动的变化、震源方位和活动趋势,判断409工作面潜在的矿山动力灾害活动规律,为全矿范围内的冲击地压危险防范提供参考依据。
409 working face of Long jia - pu coal mine mining depth is close to 1000m, which greatly exceeded the rock burst occurred frequently critical mining depth,now often power phenomenon more obvious. The working surface uses coal microseismic monitoring system in a working surface vibration information monitoring, according to the source and nature determining fracture scale, change, and obtained by microseismic monitoring microseismic activity source orientation and activity trend, judgment of mine power disaster potential in 409 working face of pest activity rules, provides the reference for the rock burst risk assessment the whole range of.
出处
《内蒙古煤炭经济》
2015年第9期132-132,152,共2页
Inner Mongolia Coal Economy
关键词
冲击地压
监测系统
微震
Rock burst
monitoring system
microseismic
