高密度电法在贵州金沙某滑坡勘察中的应用

Application of High Density Resistivity Method in Landslide Investigation of Jinsha,Guizhou

高密度电法是集电测深和电剖面装置于一体,具有观测精度高、数据采集量大、地质信息丰富、生产效率高等特点,在工程地质和水文地质勘查中被广泛应用。本文将高密度电法应用于贵州金沙某滑坡体调查中,通过分析该滑坡体的地质地球物理特征,验证了实施高密度电法调查滑坡体的可行性。调查中采用温纳装置,对该段滑坡体的地层结构、滑床位置及滑动面的埋深等地层情况的分析解释,证实了高密度电法应用效果良好,为进一步认识滑坡及其勘察治理提供了地球物理依据。

The high density resistivity method is advanced method which synthesizes electri- cal sounding and electrical profiling, and there are some advantages including high preci- sion, large data capacity, abundant geological information and high efficiency, thus the method is widely used in engineering geological and hydrogeological exploration. In the pa- per, the high density resistivity method was applied in landslide mass investigation of Jin- sha, Guizhou. Through the geological and geophysical characteristics of the landslide, the feasibility of the high density resistivity method using in landslide investigation has been ap- proved. W--S profile method was adopted in the field survey and resistivity profile of the landslide mass was achieved. From the resistivity profile ,we interpreted and analyzed the stratum structure of the landslide, sliding bed position and the depth of sliding surface, which confirmed good application effect of the high density resistivity method. These re- sults also provide geophysical basis of further understanding and treatment for the land- slide.