山西古交矿区瞬变电磁法解释参数研究

Study on Interpretation Parameters of Transient Electromagnetic Method in Gujiao Mining Area, Shanxi Province

为研究山西古交矿区地层电性参数,提高瞬变电磁探测异常区的解释精度,以古交矿区屯兰煤矿瞬变电磁探测结果为研究对象,采用探采对比和统计学原理进行研究分析。研究结果表明该研究区低阻异常区的门槛值为5Ω·m,高阻异常区的门槛值为200Ω·m,高于200Ω·m应解释为陷落柱,当达到260Ω·m时应解释为断层。

In order to study the electrical parameters of strata in Gujiao mining area, Shanxi Province, and improve the interpretation accuracy of the abnormal areas of transient electromagnetic detection, this paper takes the transient electromagnetic detection results of Tunlan Coal Mine in Gujiao mining area as the research object, and uses the contrast of exploration and mining and the principle of statistics for research and analysis. The research results show that the threshold low resistivity anomaly area in the study area is 5Ω?m, abnormal high resistance in the threshold value is 200Ω?m, more than 200Ω?m should be interpreted as collapse column, when 260Ω?m should be interpreted as fault.