在位置精确已知.良好分层的喀斯特水道上完成了地球物理试验。选择MT—VLF法的理由在于该方法的分辨率很高,且能够给出对水及泥质敏感的电阻率参数。联合使用直流电阻率法后.可对VLF结果做垂向校正,结果证明调查结果与目标深度是一致的。在校正了一次场偏振引起的形变后,工区中心部位的MT—VLF数据清楚地表明,水道与异常轴并不吻 Known for its location, geophysical testing was done on well-layered karst waterways. The reason for choosing the MT-VLF method is that the resolution of this method is high and it is possible to give resistivity parameters that are sensitive to water and shale. Combined with the DC resistivity method, the VLF results can be vertical correction, the results show that the survey results and the target depth is the same. After correcting a field-induced deformation, the MT-VLF data at the center of the work area clearly show that the waterway does not kiss with the anomalous axis