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为了解决红层地区的缺水问题，须探测和利用红层中的地下水．应用电阻率测深法能探测红层中的含水构造，但含水红层和非含水红层的电阻率差异较小，导致用电阻率测深法寻找红层地下水时分辨能力和可靠程度均较低，而采用反射系数（Ｋ）法解释电测深ρｓ资料，能提高ρｓ曲线的解释精度，从而提高了电阻率测深法的分辨能力和可靠程度，具有十分明显的地质效果．
In order to solve the problem of water shortage in red beds, groundwater in the red beds must be detected and utilized. Resistivity sounding method can detect water-bearing structure in red beds, but there is little difference in resistivity between water-bearing red beds and non-water-bearing red beds, which leads to the difference of resolving power and reliability when searching red beds for groundwater with resistivity sounding Low, and using the reflection coefficient (K) method to explain the electrical sounding ρs data can improve the interpretation accuracy of the ρs curve, thereby improving the resolution and reliability of the resistivity sounding sounding method with obvious geological effects.