Application of electrical exploration technology in fault detection in karst areas of urban rail transit
LIU Xing
LIU Yang
ZHANG Feiliang
Abstract：Given the environmental complexity of fault detection in urban rail transit engineering within karst-developed areas,this study takes the Guanshanhu normal fault and the Xiamaixi reverse fault on the Guiyang Rail Transit S2 Line as typical cases.A combined approach employing the equivalent anti magnetic flux transient electromagnetic method and high-density electrical method was applied for detection.Through comparative analysis of resistivity anomaly characteristics,the location,strike,and influence width of the fault fracture zone were accurately determined,validating the effectiveness and complementarity of these methods under strong interference conditions.Practice demonstrates that this combined approach can serve as a reference for fault detection in urban karst areas.
Keywords：equivalent anti magnetic flux transient electromagnetic methodhigh-density electrical methodkarst faultrail transitintelligent exploration
Publication Date：2025-11-25
Pages：4( 41-44 )