摘要
为查明某水利工程输水隧洞位置的地层结构及岩溶、构造空间分布特征,采用以高密度电法、瞬变电磁法的综合物探方法进行地面探测,并对探测成果的疑似岩溶部位进行钻孔验证,同时验证孔内辅以孔内声波测试、电视观察测试。探测成果揭示了地下岩溶相对发育位置及高程,且成果间可相互验证,探测成果为设计调整隧洞底高程以避开岩溶发育区提供重要依据。
Comprehensive geophysical methods of resistivity imaging and transient electromagnetic method were carried out over the tunnle location of one hydraulic engineering project to survey the stratum structure and the spatial distribution characteristics of karst and structure,which will be verified by drilling and sonic log and video log.The detection results reveal the location and elevation of karst,and the results can be mutually verified.The detection results provide an important basis for designing and adjusting the elevation of the tunnel to avoid karst areas.
作者
何灿高
王杰
HE Cangao;WANG Jie(China Water Resources Beifang Investigation Design&Research Co.,Ltd.,Tianjin 300222,China)
出处
《水科学与工程技术》
2020年第5期61-64,共4页
Water Sciences and Engineering Technology
关键词
高密度电法
瞬变电磁法
钻孔声波法
钻孔电视观察法
岩溶
resistivity imaging
transient electromagnetic method
borehole sonic method
borehole televiewer method
karst
