In this paper, discussion was made on the transient electromagnetic prospecting technology by taking a project that was prospected by using the transient electromagnetic method in Pingdingshan Western Mining Area as an example, estimation was carried out on the limit depth of the transient electromagnetic prospecting by using the late transient electromagnetic response, and the prospecting of water abundance of a deep seam's roof and floor aquifers in a north-China coal field was completed by using the high-performance prospecting system, selecting the rational device and parameters and through the prospecting depth test. The anomaly with depth up to 1000m or more was successfully prospected by using this transient electromagnetic prospecting technology. In addition, the feasibility of using the transient electromagnetic method for prospecting the abnormal water abundance area was discussed by the project examples prospected with the transient electromagnetic method, this thus provided the basis for the deep mine water prevention and control.% 结合平顶山西部矿区的瞬变电磁勘探工程实例，论述运用瞬变电磁勘探技术，利用晚期瞬变电磁响应，估算瞬变电磁勘探的极限探测深度，使用高性能的勘探系统，以及选择合理的工作装置和参数，通过探测深度试验，完成了对华北型煤田深部煤层顶底板含水层的富水性探测。实现了瞬变电磁对1000 m以上的深部异常的探测。同时也通过瞬变电磁法在煤田深部矿区勘探的实例，探讨了瞬变电磁法探测深层富水异常区的可行性，为煤矿的深部防治水工作提供依据。
展开▼
