物探方法在山区滑坡勘察中的应用

Application of Geophysical Prospecting in Landslide Investigation

滑坡是山区公路工程中一种常见的不良地质现象,如何经济、快速、有效地进行滑坡勘察是山区公路工程地质勘察时值得思考的问题。简要叙述了当前滑坡勘察中常用的物探方法及其应用范围,并针对西南山区一些典型滑坡实例,应用地震折射波法、瑞雷面波法、高密度电法及探地雷达法,快速准确查明了滑坡的地层结构和地下水分布情况,取得了良好的效果。

Landslide is a common unfavorable geology of the highway construction in the mountainous aears. The way how to carry out landslide investigation economically, quickly and effectively is a problem worth of thinking about during the highway geotechnical investigation in mountainous areas. In this paper, the commonly used geophysical methods for landslide survey and their scope of application are briefly introduced. Combined on some typical landslide of slopes in the mountainous region of the southwest China, the stratigraphic structure and groundwater distribution of the landslide are quickly and accurately obtained by means of the seismic refraction method, Rayleigh wave method, high density electrical method and ground penetrating radar method, which has achieved good effect.