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针对煤矿积水采空区普遍存在的问题现状,基于瞬变电磁法和EH4大地电磁法的理论,通过分析二者特点及局限性,提出综合运用这2种方法探测煤矿积水采空区,并进行了现场应用。研究结果表明:采用综合探测方法能够有效地解决单一方法干扰大、精度低的弊端,探测结果较为可靠,可以有效地对采空区范围及其含水性进行探测与评价,防止重大突水事故发生。
Based on the theories of TEM and EH4, by analyzing the characteristics and limitations of the two, this paper proposes that these two methods should be used synthetically to detect the water gob of coal mine, And carried on the scene application. The results show that the comprehensive detection method can effectively solve the shortcomings of large interference and low accuracy of a single method, the detection results are more reliable, can effectively detect and evaluate the range and water content of the goaf, and prevent the occurrence of major water inrush accidents .