矿井瞬变电磁法在煤层顶板富水异常区探测中的应用

 一直以来，煤层顶板水害问题是红柳林煤矿安全生产的严重威胁，为保证5号煤层工作面安全回采，应在开采前期查明顶板基岩层导、含水构造及其富水性。由于矿井瞬变电磁法对低电阻率地层均有反应敏感、分辨率高及探测深度大等优点，为本次工作面顶板水害防治提供了有效的技术手段。本文利用矿井瞬变电磁法基本查明了该矿15204工作面顶板导、含水构造，圈定了富水异常区，所取得的成功经验对该矿区今后顶板水害防治技术的发展提供了科学依据，具有一定的指导意义。

Application of Mine Transient Electromagnetic Method to Detect Watery Abnormal Zone in Seam Roof Strata

Water disaster of mine roof causes serious threat to safety production in Hongliulin Colliery, in order to ensure safe mining for No.5 coal seam face, the staff must detect the crytic hydrated structure and water abundance in the preceding and the process of mining. Because mine transient electromagnetic method has many advantages, such as more sensitive and higher resolution and deeper probing depth, for low resistivity formation loggin, and this method provides an advanced and effective method for roof water disaster. By using mine transient electromagnetic method is examined in the crytic hydrated structure for No.15204 working face and delineated rich water anomaly area, the successful experience provides scientific basis for development of groundwater hazard prevention technique in that mine, the research results have some guidance significance to mine production.