矿井直流电透视法在麦捷煤矿巷道掘进中的应用

Application of Mining DC Electrical Penetration in Roadway Heading in Maijie Coal Mine

麦捷煤矿是常村煤矿整合矿,由于历史遗留问题导致区内存在不明老空和积水区,为掌握巷道掘进前方是否存在空区和积水区、保障巷道开拓工程安全,在麦捷煤矿312配风巷和205轨道顺风巷的掘进前方开展矿井直流电透视法超前探测。探测结果表明312配风巷和205轨道顺风巷探测区域内,均无老空区与积水区;仅在205轨道顺风巷顺层巷道右侧约50~100 m范围内可能存在局部富水现象。经205轨道顺风巷内现场钻孔验证,圈定的富水区域出水量约2.3 m3/h,探测效果较好,矿井直流电透视法在探测巷道迎头前方有无老空和积水区及其它类型富水区分布、保障巷道的掘进安全方面行之有效。

Maijie coal mine wan an integrated mine of Changcun coal mine.Due to historical problems,there existed unknown goaf and water accumulation areas in the area.In order to determine whether there were goaf and water accumulation and ensure the safety of roadway development project,we carried out advanced detection in the roadway heading of No.312 ventilation roadway and No.215 track downwind roadway by mining direct current(DC)electrical penetration.The results showec that there were no goaf and water accumulation areas in the detection area of No.312 ventilation roadway and No.215 track downwind roadway.There might be local water-rich phenomenon in the right side of No.215 track downwind roadway within 50~100 m.The water yield of the delineated water-rich area was about 2.3 m3/h by drilling in No.215 track downwind roadway,and the detection effect was good.The mining DC electrical penetration was effective in detecting goaf and water accumulation areas and other types of rich water area in roadway heading and ensuring the safety of roadway driving.