中文摘要：

2.5维有限元法正演模拟表明,当大采深急倾斜煤层中存在一定规模的采空区时,对应的视电阻率异常幅度大于8%,从理论上验证了CSAMT探测大采深急倾斜煤层采空区的可行性.通过设置合理的施工参数,选择合理的资料处理方法,采用CSAMT在王家山煤矿大采深急倾斜煤层探测的实践中获得了高分辨率的视电阻率断面图,其结果与钻探结果吻合.理论和实践表明了CSAMT探测大采深急倾斜煤层采空区可行且具有良好的效果。

英文摘要：

The results of 2. 5-D finite element forward calculating showed when there was a certain scale goaf of large mining depth in the steep coal seam,the max amplitidue of apparent resistivity anomaly was above 8%,which theoretically validated the feasibility of adopting CSAMT to detect goaf of large mining depth in steep coal seam. CSAMT had been applied in Wangjiashan Coalmine to detect goaves that were typically of large mining depth in steep coal seams,apparent resistivity sections with high resolution had been acquired by setting suitable operation parameters and adopting wise data processing methods and the result fitted the drilling well. These all above facts showed that CSAMT was feasible and had sound effect to detect goaf of large mining depth in steep coal seams.