综合物勘方法在煤矿隐蔽致灾地质因素探查中的应用研究

Application research of comprehensive physical exploration method in exploration of geological factors hiddenly causing damage in Coal Mine

为了精准查明桑树坪煤矿北二采区范围内各类隐蔽致灾地质因素,依据三维地震勘探和瞬变电磁综合物探方法的探查成果,对研究区的地质异常体进行了全面分析和评价,为北二采区未来采掘范围内的安全生产提供了依据。查明了北二采区3号煤层构造形态,新发现挠曲11个,解译断层16条;查明了区内2处3煤层开采的采空区边界及其影响区;查明了北二采区3号煤层顶底板含水层的富水情况,并解译了5处富水区;解译了奥灰含水层的起伏形态和富水性;解译了2处层滑构造。

In order to accurately identify all kinds of geological factors hiddenly causing damage in the north second mining area of Sangshuping Coal Mine,based on the exploration results of three-dimensional seismic exploration and transient electromagnetic comprehensive physical exploration method,the geological anomalies in the study area were comprehensively analyzed and evaluated,which provided a basis for the safe production of the north second mining area in the future.The structural form of No.3 coal seam in the north second mining area was identified,11 new deflections were exposed,16 fractures were interpreted,two goaf boundary and its influence area of No.3 coal seams in the area were identified,the water condition of No.3 coal seam roof and floor aquifer in north second mining area was identified,and five water abundance areas were interpreted.The undulating form and water abundance of Ordovician limestone aquifer were interpreted;two layer slip structures were interpreted.