瞬变电磁法是目前较为先进的物探方法，比较适合忻州窑矿地质勘探工作。瞬变电磁法最关键的一步是确定工作设备参数，以往应用中是通过理论计算进行确定，但是由于地表下围岩体变化存在较多不确定的因素，单纯依靠理论计算不精确。本次测试按照由“已知”到“未知”，再由“未知”到“已知”的思路进行，即先用仪器对已知采空积水区进行探测，反推出仪器合理的工作参数，再用调试合理的设备对未知区域进行探测，综合利用电压平面等值线图、INLOOP 反演电阻率平面等值线图、IX1D 反演电阻率平面等值线图3种结果进行资料解释，反演推断出积水部位。最后按照“物探先行，钻探验证”的原则，采用钻探的方法进行验证，最终确定井下准确的积水区域，科学指导掘进和回采。%The most crucial step of transient electromagnetic method is to determine the device parameters.It determined by theoretical calculations in previous applications,but due to many uncertain factors exists in rock change under earth's surface,just relying on theoretical calculation is imprecise.According of the thought that from the known to the unknown,then from the unknown to the known,firstly this test uses the instrument to detect a known water -accumulated area in goaf,and deduces the reasonable working parameters of instrument,then probes the unknown re-gion using the reasonable equipment which has been debugged.Comprehensively utilizes the results of voltage plane contour map,INLOOP inversion plane resistivity contour map and IX1D inversion plane resistivity contour map to in-terpret the data,and inverse infers the position of water.Finally,according to the principle of geophysical prospecting advanced,drilling verification,verifies by using drilling method,and ultimately determines the exact underground wa-ter areas,scientifically guides excavation and mining.
展开▼
