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工作面顶板和底板下隐伏导含水构造的瞬变电磁响应特征研究,是目前矿山安全生产技术研究的重点难点之一。采用瞬变电磁法全空间探测技术,能有效地探测工作面顶板、底板或煤层内部的隐伏导含水构造,并能确定其具体影响范围。在多测道剖面上对应测点位置的感应值相对较高,对应的曲线部分呈凸起或上升趋势,异常体反应不明显。多测道剖面图多用于实测数据的实时处理显示,根据初步处理结果来调整测线或测点的布置。隐伏导含水构造在视电阻率拟断面图中多呈封闭或半开口状,视电阻率值相对较小。
Research on the transient electromagnetic response characteristics of concealed water-bearing structures under the roof and floor of the working face is one of the key and difficult points in the study of mine safety production technology. The use of transient electromagnetic full space exploration technology, can effectively detect the roof, floor or seam hidden within the coal-bearing water conductivity, and to determine the scope of its specific impact. The sensing values of the corresponding measuring points on the multi-track section are relatively high, and the corresponding curves show a convex or upward trend, and the abnormal body reaction is not obvious. Multi-track profiles are used for real-time processing of measured data shows, according to the initial processing results to adjust the survey line or measuring point arrangement. The buried conductive water-bearing structure is mostly closed or semi-open in the section of apparent resistivity pseudosection, and the apparent resistivity is relatively small.