The application of ultra-high density resistivity method to the detection of buried fault
LI Jun-Jie1, HE Jian-She1, YAN Jia-Bin2, RONG Xin1, LI Yang1
1. Zhejiang Design Institute of Water Conservancy and Hydroelectric Power, Hangzhou 310002, China;
2. Key Laboratory of Non-ferrous Resources and Geological Hazard Detection, School of Geosciences and Info-Physics, Central South University, Changsha 410083, China
This paper deals with the application of ultra-high density resistivity method to the detection of buried fault in the dam area of a reservoir, and describes geological situation of the survey area and the layout of surveying line as well as the detection mechanism of the method. On such a basis, apparent resistivity response of layered medium models is simulated by Hankel transform method. Based on inversion calculation combined with the geological drilling data, the buried depth of bedrock and the trend of regional fault are determined.The fault fracture zone presents obvious vein-like low resistivity anomalies in the middle of resistivity sections, which is consistent with the geological and drill hole data, thus verifying the effectiveness of the ultra-high density resistivity method.
李俊杰, 何建设, 严家斌, 荣鑫, 李阳. 超高密度电阻率法在隐伏断层探测中的应用[J]. 物探与化探, 2016, 40(3): 624-628.
LI Jun-Jie, HE Jian-She, YAN Jia-Bin, RONG Xin, LI Yang. The application of ultra-high density resistivity method to the detection of buried fault. Geophysical and Geochemical Exploration, 2016, 40(3): 624-628.
