摘要
基于鑫黔煤矿21203工作面底板下方中存在茅口组灰岩强含水地层条件,采用常规突水系数法结合矿井物探、钻探、巷道揭露地质情况对21203工作面底板茅口灰岩突水危险性进行分析。研究得出底板隔水性能较好,茅口灰岩突水的可能性较小,工作面实施带压开采是可行的。矿井在制定安全保障措施下进行带压开采,减小矿井资源损失,提高采出率,同时也为类似条件的工作面开采提供借鉴和参考。
Aiming at the strong aquifer in the floor at 21203 working face in Xinqian Colliery,the paper proposes the application of mining under pressure by analysis of the water outburst risk of Maokou Group limestone by means of conventional water outburst coefficient method combined with mine geophysical exploration,drilling and roadway exposure,which can reduce mine resources loss and improve recovery ratio with better water-proof performance in floor and less possibility of water outburst.
作者
李臣武
Li Chenwu(Mechanical&Electrical and Energy Engineering College,Guizhou Vocational Technology Institute,Guiyang,Guizhou 550023)
出处
《江西煤炭科技》
2020年第3期107-109,113,共4页
Jiangxi Coal Science & Technology
关键词
带压开采
可行性评价
突水系数
mining under pressure
feasibility evaluation
water outburst coefficient
