煤炭与化工2024，Vol.47Issue(2)：73-77,5.DOI:10.19286/j.cnki.cci.2024.02.016
大埋深工作面微震活动规律研究
Study on microseismic activity law of large buried depth working face
摘要
Abstract
In order to avoid the occurrence of mine water outburst and realize the safe mining of working face,this paper took No.12210 Face of Xingdong Mine of Jizhong Energy Co.,Ltd.as the research object.Through the establishment of microseismic monitoring system in the working face,No.12210 Face was monitored in real time,dynamically and continuously by using high-precision microseismic monitoring technology.The results showed that the microseismic events were mainly concentrated in the working face and near the faults around the working face.The roof microseismic events were mainly concentrated in the range of 0～39.50 m,and the floor microseismic events were mainly concentrated in the range of 31 m below the coal seam.When passing through the fault exploration roadway,the microseismic activity response was obvious;the mining disturbance under the influence of fault had a significant influence on the maximum depth of floor disturbance.The mining speed was significantly positively correlated with the total number of microseismic events,the number of roof events,and the number of floor events.And the mining speed was significantly negatively correlated with the maximum floor disturbance depth.The correlation coefficients were 0.568,0.547,0.568,and-0.376,respectively.关键词
突水/微震监测/断层/回采速度Key words
water outburst/microseismic monitoring/fault/mining speed分类
矿业与冶金引用本文复制引用
杨波..大埋深工作面微震活动规律研究[J].煤炭与化工,2024,47(2):73-77,5.基金项目
邢台市重点研发计划项目(2022ZZ048) （2022ZZ048）
