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3 地表装置的视电阻率等值线

Fig.3 Apparent resistivity contour map