综合物探结合长距离钻孔控制隐伏构造

Control of Concealed Structures by Comprehensive Geophysical Prospecting Combined with Long-distance Drilling

屯兰矿为煤与瓦斯突出矿井,煤层瓦斯预抽达标后方可采掘作业。在三维地震控制区域,瞬变电磁法分段超前探测煤层内高阻异常区域,用长距离抽采定向钻孔探测煤岩赋存情况,相互验证控制空白区隐伏构造,提高了矿井采掘过程中地质预测预报的准确性。

To reach the standard of gas drainage to guarantee the mining in Tunlan Colliery,the author proposes the transient electromagnetic method for advanced section detection in high resistance anomaly area,and long-distance directional borehole detecting coal rock occurrence,which can mutually identify and control the blank area of concealed structure and improve the accuracy of geological predictions in coal mining.