近距离煤层上方老空水的瞬变电磁法探测技术研究

Detection Technology of Transient Electromagnetic Method on Water Floodin Goaf above Close-distance Coal Seam

近距离煤层分层开采时,由于上层采空区积水的存在及下层煤开采造成的顶板裂隙很容易形成导水通道,老空区积水会对下层煤开采造成严重的水患。文章以瞬变电磁法探测技术为研究重点,结合某矿的地质情况用瞬变电磁法技术进行探测研究,证明该技术在近距离煤层分层开采中有着很好的效果,对具有相似开采情况的煤矿有一定的指导意义。

In slicing mining for close-distance seams, water flood in goaf and roof fissure by lower coal seam mining could cause water passages easily. Therefore, the water flood in goaf could result in serious water hazard on the lower coal seam mining. Transient electromagnetic method was the focus of the study. Combined with geological condition, the study demonstrated that the transient electromagnetic method worked well in the slicing mine, which could be useful for the similar mines.