【摘要】 针对目前探测铁矿采空区的技术难题,本文研究了应用感应类电磁法探测铁矿采空区所表现出的地球物理特性,认为铁矿采空区围岩的拟视电阻率呈高阻特征,并运用瞬变电磁法对山西省吕梁市岚县袁家村铁矿采空区进行了探测实证,结果显示通过分析拟视电阻率断面图划分出的该铁矿采空区的位置与钻探结果基本吻合,表明瞬变电磁法是探测铁矿采空区的一种行之有效的方法。更多还原

【Abstract】 Aiming to give a technical solution to the problem of the exploration of mined-out zone in iron mine area,this paper makes a thorough analysis on the geophysical properties of iron mined-out zone using electromagnetic methods.It is discovered that the fitted apparent resistivity of iron mined-out zone has the characteristics of high impedance.Moreover,transient electromagnetic method(TEM) is adopted to explore the iron mined-out zone in Yuanjia Village,Lanxian County,Luliang City,Shanxi Province,and the analysis of the cross section maps of fitted apparent resistivity indicates that the location of the mined-out zone is basically in accordance with the borehole data.This research shows that TEM is an effective and feasible method in the exploration of iron mined-out area.更多还原