高密度电法在三峡库区滑坡勘察中的应用

高密度电阻率法是一种基于岩土体的电性差异而进行勘探的物探方法。在介绍了高密度电法基本原理和系统结构的基础上，通过在三峡库区某滑坡勘察中应用高密度电法确定滑体厚度和基岩面形态的实例，探讨了在滑坡勘察中高密度电法的适用条件和野外工作方法，并结合钻探成果和工程地质测绘资料对其影像成果进行了有效解释。实践表明该技术在与常规勘察方法结合起来进行滑坡勘察时，勘探效率高。应用配套软件处理后，勘测数据生成的地电断面图直观清晰，定性、定量解释可靠，能得到符合实际的滑坡体参数，可以较好地应用于多种勘察方法相结合的滑坡勘察中。

Application of high density resistivity method to landslide surveyin Three Gorges Reservoir area

The high density resistivity imaging is a geophysical survey method, based on the difference of rock masses or soil masses in electric properties. Its basic principles and system structure are introduced. In the light of an instance which measures the gliding mass depth and the bedrock surface shape of a landslide in the Three Gorges Reservoir area with the high density resistivity method, the applicable conditions and the fieldwork technique of the high density resistivity method, are discussed, and the resistivity distribution section images are interpreted combining borehole logs and engineering geological surveying data. It suggests that the high density resistivity method is an efficient survey method if it is combined with the conventional survey methods. And the geological resistivity distribution images generated by the self-contained data processing software are direct and distinct, and its qualitative and quantitative interpretation is reliable. The inferred parameters of the landslide accord with the reality. It is confirmed that the high density resistivity method is suitable for landslide survey very much when it is combined with other methods.