瞬变电磁法在煤矿采空区及富水性探测中的应用

Application of Transient Electromagnetic Method in Detection of Goaf and Water-rich in Coal Mine

瞬变电磁法作为地球物理勘查的重要手段之一,利用对电阻的异常灵敏反应,将采集到的数据分析处理、绘制出视电阻率测深剖面、视电阻率解释顺层切片,可直观地对煤系地层的采空区展布、含水层及其富水性、断层的富、导水性进行评价,可有效避免矿井开采过程中带来的地质危害及资源浪费。

As one of the important methods of geophysical exploration,transient electromagnetic method uses the abnormally sensitive response to resistance,analyzes and processes the collected data,draws the apparent resistivity sounding profile,and interprets the apparent resistivity slices.It can intuitively evaluate the distribution of the goaf,aquifers and its water richness,and the fault richness and water conductivity of coal-measure strata,which can effectively avoid geological hazards and resource waste in the process of mining.