使用瞬变电磁对工作面上覆含水层富水性探查的技术探讨与实践

摘要

富安煤矿地处滕南煤田，开采12煤层受上覆三灰及上部砾岩含水层水威胁，易发生采空区滞后性突水，通过采前对12105工作面进行瞬变电磁探测，查明了工作面顶板富水性，此工作面的瞬变电磁工作对其他煤矿开采上覆含水层的安全生产具有一定的借鉴意义。%Fuan coal mine is located in Tengnan coalifeld, mining 12 coal seam was threatened by the water of the upper three ash and water-bearing conglomerate, prone to lagging water inrush in goaf, electromagnetic detection exploration before mining 12105 working face, ifnd out the watery of working face roof, the exploration has certain reference signiifcance for the production safety of other coal mining overlying aquifer.