摘要
在露天铁矿开采中,先存的采空区是巨大的安全隐患。为了摸清某铁矿采空区的赋存状况,运用瞬变电磁法对采空区进行了探测应用研究。结合高密度电阻率法探测和工程钻探的结果,发现瞬变电磁法在铁矿采空区探测工作中效果显著。同时瞬变电磁法具有探测深度大、探测盲区小、分辨率高、体积效应小和操作简便等优点,是一种经济、便捷的地球物理探测手段。在露天铁矿采空区探测中具有推广的价值。
Pre-existing mined-out areas hide potential safety hazard in mining.In order to identify the existence of mined-out areas,TEM is applied to detect an open-pit iron mine,and the effectiveness of the method is proved,combined with the results obtained through high density resistivity method and engineering drilling.With great advantages of having big detection depth,small detection blind spot,high resolution,small volume effect and simple operation,TEM is proved as an economical and convenient means of geophysical exploration.Besides,it possesses the value of promotion in metal mine mined-out areas detecting.
出处
《工程地球物理学报》
2010年第5期589-593,共5页
Chinese Journal of Engineering Geophysics
关键词
瞬变电磁法
铁矿
采空区
transient electromagnetic method
iron mine
mining-out area
