瞬变电磁超前探测技术在邢台矿9103探巷中的应用

Application of transient electromagnetic advanced detection technology in No.9103 detection roadway of Xingtai Mine

邢台矿西井9103探巷为9号煤掘进巷道,根据9100采区现有水文地质资料及综合分析,该工作面水文地质条件较清楚,断层构造发育。第四纪底砾水、本溪灰岩水及奥灰水为9103工作面9号煤底板充水水源。采用瞬变电磁超前探测技术查清巷道掘进前方一定范围内是否存在隐伏导、含水构造,尤其是隐伏导含水断层,此次瞬变变电磁超前探测位置位于巷道开口处,水平方向探测7个角度,垂向方向探测7个角度,根据探测结果,在探测范围内存在1处相对低阻区域,经矿方钻探验证,该异常区真实可靠。

No.9103 detection roadway in the west well of Xingtai Mine is the No.9 coal excavating roadway.According to the existing hydrogeological data and comprehensive analysis of No.9100 mining area,the hydrogeological conditions of the working face are clear and the fault structure is developed.Quaternary bottom gravel water,Benxi limestone water and Ordovician limestone water are the water filling sources of No.9 coal floor in No.9103 Face.The transient electromagnetic advanced detection position was located in the opening of the roadway,with seven angles detected in the horizontal direction and seven angles detected in the vertical direction.According to the detection results,there was a relatively low-resistance area in the detection range.It was verified by the mine drilling that the abnormal area was true and reliable.