综合物探方法在探测煤矿采空区积水中的应用

Application of comprehensive geophysical exploration method in detecting water accumulated in goaf of coal mine

为了进一步明确矿井采空区积水情况,在采空区对瞬变电磁法及激电中梯法进行参数优化试验,寻找适合在该区域进行采空区积水探测的参数,利用选定参数对沁裕矿区2号煤层进行瞬变电磁法与激电中梯法综合物探试验。先使用瞬变电磁法对采空区积水情况进行探测,再使用激电中梯法验证采空区积水状况,确定8个疑似采空积水区。通过对综合物探方法所测8处异常区打钻验证,均有水涌出,证明瞬变电磁法和激电中梯法结合探测的结果可信度较高。

In order to further clarify the water accumulation in goaf of the mine, the parameter optimization test of the transient electromagnetic method and the induced electric ladder method was carried out in the known goaf. And the parameters suitable for the detection of water accumulated in goaf in the area were found. The selected parameters were used to carry out the comprehensive geophysical exploration test of the transient electromagnetic method and induced electric ladder method in the No.2 coal seam of Qinyu mining area. Firstly, the transient electromagnetic method was used to detect the water accumulated in goaf, and then the induced electric ladder method was used to verify the state of water accumulated in goaf, and 8 suspected goaf water accumulated areas were determined. Through the drilling verification of 8 abnormal areas measured by comprehensive geophysical exploration method, water poured out, which proved that the combination of transient electromagnetic method and induced electric ladder method had high reliability.