摘要
为了调查和监测山西省中部某个变电站周边采空区的活动情况,使用瞬变电磁中心回线法前后三次进行探测,探测结果显示每次采空区范围在不断扩大,地面出现明显的下沉和塌陷,说明该地区极不稳定。通过瞬变电磁法可以快速获得浅部至中、大深度地层的电性信息,能够较好地解释采空区地质问题,取得令人满意的探测结果。
Central-loop TEM sounding was carried out three times, and TEM soundings over the buried goal was interpreted. The interpretation results show that the limits of the goaf are enlarged with time. The surface sink and the cracks detected demonstrate that the power building is in an unstable state. With the transient electromagnetic method, we can rapid obtain the electric information of strata in shallow or even great depth, interpret geological problems ideally, and get satisfactory detection result.
出处
《物探与化探》
CAS
CSCD
2012年第B10期114-118,共5页
Geophysical and Geochemical Exploration
关键词
瞬变电磁法
采空区
建筑物的稳定性
地质监测
transient electromagnetic method
goaf
stability of building
geological monitoring
