瞬变电磁法在煤层富水性预测中的应用

Application of transient electromagnetic method in coal seam water abundance

以唐山矿Y484外工作面为研究对象,采用矿井瞬变电磁法对工作面溜子道和风道顶底板50 m内进行了探测,分析和研究了工作面煤层的富水性。结果表明,该矿Y484外工作面顶板为透水岩层,底板为隔水岩层,异常区域富水性较小,低阻异常区域在垂向上未能贯通,导水构造的存在可能性较小。

Y484 working face of Tangshan Mine was taken as example,mine transient electromagnetic method was adopted to detect roadway and wind roof and floor 50 m,water rich in surface coal seam was analyzed and studied,the result showed that the working face roof belongs to permeable stratum,floor was water-resistant stratum,with small water-rich abnormal area,low resistance anomaly area did not cut through in vertical direction,with little existence possibility of water diversion structure.