摘要
为掌握金能煤业一采区回风上山掘进工作面前方断层发育情况及富水特征,采用瞬变电磁法进行探测,结合巷道具体条件,设计巷道瞬变电磁超前探测方案。探测结果表明,巷道拨门口迎头前方50 m附近位置处底板存在带状低阻异常区域,异常区域的整体富水性不强;采取突水系数法评价得出,断层区域底板奥灰水无突水危险性。根据巷道掘进施工情况,断层发育特征与探测结果基本一致,巷道掘进过断层期间无突水现象。
In order to grasp the fault development and water-rich characteristics in front of the upper mountain excavation face of the air return mining area of Jinneng Coal Industry,the transient electromagnetic method was used to detect,combined with the specific conditions of the roadway,the roadway transient electromagnetic advanced detection program was designed.The detection results showed that there was a belt low resistance abnormal area in the floor 50m ahead of the heading face of the roadway,with poor overall water abundance in the abnormal area,evaluation of water inrush coefficient method was adopted to get that there was no danger of water inrush from the floor of Ordovician limestone in fault area.According to the mining construction,the fault development characteristics were basically consistent with the detection results,and there was no water inrush during the mining through the fault.
作者
贾伟
Jia Wei(Jinneng Coal Corporation Ltd.,Huozhou Coal and Power Group,Xinzhou 034000,China)
出处
《煤炭与化工》
CAS
2021年第6期56-57,60,共3页
Coal and Chemical Industry
关键词
掘进工作面
瞬变电磁
水害防治
突水系数法
mining working face
transient electromagnetic
water damage prevention and control
sudden water coefficient method
