地—井直流电法在路基岩溶勘探中的应用

余小晴, 温金豪

Application of the surface-to-borehole direct current method for subgrade investigations in karst terrain

YU Xiao-Qing, WEN Jin-Hao

图1 地—井高密度电法勘探示意

Fig.1 Schematic diagram of multi-electrode resistivity method with well observations