深部-1200m巷道掘进影响范围微震规律研究

Micro-seismic Laws in Influence Range of Tunneling Roadway with-1 200 m Buried Depth

巷道掘进造成周围煤岩体应力分布不均匀会对相邻工作面或者巷道的微震活动有一定影响。分析这一影响范围的大小有利于揭示井下工作面和巷道之间的相互影响关系,进而有效地进行冲击灾害防治。从矿震角度出发,结合某矿3303工作面特殊的扩面设计,利用波兰SOS微震监测系统的观测数据,分析-1200m埋深下运输巷掘进迎头、掘进过断层矿震分布规律,以及掘进对轨道巷拐弯区域的影响规律,并依此总结出巷道掘进的超前影响范围。

Roadway excavation will cause maldistribution of stress surrounding rock,which will affect the micro-seismic activity in the workface or roadway.Studying the scope of influence area is in favour of revealing the relationship between underground roadways and workface,and strengthening the prevention and treatment of rock burst disaster.This paper is from the view of earthquake information of the SOS micro-seismic monitoring system in Poland to analyze seismic distribution law of heading face and tunneling through fault in transport roadway with 1200 m buried depth,and the influence law of tunneling on the turning area of track lane,based on this,the leading influence range of roadway excavation is summarized.