A coal mine in Datong is an integrated mine. At present, there is goaf in the upper and lower part of the mining coal seam. There is a lot of ponding in the goaf, which has great potential safety hazards for production. In order to find out the scope and location of ponding in goaf, the comprehensive geophysical exploration method combining transient electromagnetic method and high-density resistivity method is used to carry out the research. Firstly, the time-base, turn-off time, receiving delay, current, superposition times, and other parameters of the instrument are tested on the surface of known goaf to obtain the best instrument parameters, and the parameters are used to verify the feasibility of the research scheme; then, the transient electromagnetic method is used for large-area exploration on the surface of the mine, the suspected goaf ponding area is found through comprehensive analysis, and the high-density resistivity exploration is arranged in the suspected goaf ponding area. According to the obtained results, the scope and location of the goaf ponding area are accurately located through comprehensive analysis. The results show that there are two goaf ponding areas in the exploration area, which are located above the 8# coal seam currently mined; the range and location of goaf ponding area can be accurately obtained by using the comprehensive geophysical method of high-density electrical method and transient electromagnetic method. This method can provide reference for mine water prevention and control in Datong area and has great practical significance to ensure coal mine safety production.

中文翻译：

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综合物探方法在综合矿山多层采空区积水勘探中的应用

大同某煤矿为综合矿山。目前，开采煤层上部和下部存在采空区。采空区积水较多，生产安全隐患较大。为了查明采空区积水的范围和位置，采用瞬态电磁法和高密度电阻率法相结合的综合地球物理勘探方法进行了研究。首先在已知采空区地表测试仪器的时基、关断时间、接收延迟、电流、叠加次数等参数，得到最佳仪器参数，并用这些参数验证可行性研究计划；然后，采用瞬态电磁法对矿面进行大面积勘探，综合分析发现疑似采空区，在疑似采空区布置高密度电阻率勘探。根据所得结果，综合分析准确定位采空区积水区的范围和位置。结果表明，勘探区内有两个采空区，位于目前开采的8#煤层上方；利用高密度电法和瞬态电磁法综合地球物理方法可以准确获得采空区积水区的范围和位置。该方法可为大同地区的矿井水防治提供参考，对保障煤矿安全生产具有重要的现实意义。在疑似采空区积水区安排高密度电阻率勘探。根据所得结果，综合分析准确定位采空区积水区的范围和位置。结果表明，勘探区内有两个采空区，位于目前开采的8#煤层上方；利用高密度电法和瞬态电磁法综合地球物理方法可以准确获得采空区积水区的范围和位置。该方法可为大同地区的矿井水防治提供参考，对保障煤矿安全生产具有重要的现实意义。在疑似采空区积水区安排高密度电阻率勘探。根据所得结果，综合分析准确定位采空区积水区的范围和位置。结果表明，勘探区内有两个采空区，位于目前开采的8#煤层上方；利用高密度电法和瞬态电磁法综合地球物理方法可以准确获得采空区积水区的范围和位置。该方法可为大同地区的矿井水防治提供参考，对保障煤矿安全生产具有重要的现实意义。通过综合分析，准确定位采空区积水区的范围和位置。结果表明，勘探区内有两个采空区，位于目前开采的8#煤层上方；利用高密度电法和瞬态电磁法综合地球物理方法可以准确获得采空区积水区的范围和位置。该方法可为大同地区的矿井水防治提供参考，对保障煤矿安全生产具有重要的现实意义。通过综合分析，准确定位采空区积水区的范围和位置。结果表明，勘探区内有两个采空区，位于目前开采的8#煤层上方；利用高密度电法和瞬态电磁法综合地球物理方法可以准确获得采空区积水区的范围和位置。该方法可为大同地区的矿井水防治提供参考，对保障煤矿安全生产具有重要的现实意义。利用高密度电法和瞬态电磁法综合地球物理方法可以准确获得采空区积水区的范围和位置。该方法可为大同地区的矿井水防治提供参考，对保障煤矿安全生产具有重要的现实意义。利用高密度电法和瞬态电磁法综合地球物理方法可以准确获得采空区积水区的范围和位置。该方法可为大同地区的矿井水防治提供参考，对保障煤矿安全生产具有重要的现实意义。