先前存留的采空区给露天煤矿带来了巨大的安全隐患。为了查清某大型露天矿采空区赋存情况,首次采用瞬变电磁法对该矿进行了探测研究。结果表明,绝大部分揭露空区的钻孔均位于高阻异常区域;经矿方现场钻探验证,瞬变电磁法取得了比较理想的解译成果,具有较高的准确性,为露天矿安全生产提供了保障。 The mined-out area previously left a huge security risk to the open-cast coal mine. In order to find out the occurrence of the goaf in a large open-pit mine, the study of the mine was conducted using the transient electromagnetic method for the first time. The results show that most of the boreholes exposed in the open area are located in the high resistivity anomaly area; by the field drilling verification, the transient electromagnetic method has obtained the ideal interpretation results with high accuracy, Production provides a guarantee.