瞬变电磁法(TEM)在露天铁矿采空区探测中的应用  

Application of TEM to Mining-Out Detection of an Open-pit Iron Mine

作　　者：杨义彪[1] 席晓风 范广海[3] 门业凯[1] 

机构地区：[1]东北大学资源与土木工程学院,沈阳110004 [2]河南中联矿业有限公司,郑州450000 [3]鞍钢矿业集团公司,鞍山114001

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

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.

关 键 词：瞬变电磁法 铁矿 采空区 

分 类 号：P631[天文地球—地质矿产勘探]