滑坡勘探与试验研究

滑坡是山区和丘陵地区经常遇到的地质灾害之一，必须对其进行研究和处理．根据国家交通部下达的研究项目计划，对“３１８”国道大甘坪滑坡进行实地勘探和采集原状土样在室内试验．通过浅层地震法、电探法、机械钻探法和人工开挖坑探等方法，查明了滑坡的工程地质、水文地质等情况，分析了滑坡成因和滑坡现状．研究结果表明：① 产生滑坡因素不是单一的，而是各种因素共同作用的结果，这些因素包括地形状况、地质条件、土质特点和工程作用等；② 该滑坡属于中层滑坡，发育比较完善，正处于滑坡的壮年期．勘探和试验成果用于研究滑坡的稳定性和提出滑坡治理方案．

Exploration and Experimental Study of Landslide

Landslide is one of the geologic disasters occuring in mountain and hill areas, and it is neccessary to study and harness it. According to the item plan assigned by the National Ministry of Communications, Daganping landslide in 318 national road is prospected, soil sample is collected from the site and is tested in laboratory. The conditions of the landslide in engineering geology and hydrogeology are known by means of shallow layer seism, electric exploration, mechanical drilling and man made digging. It is shown that the main factors causing the landslide forming include topography, geologic condition, soil feature, and the effects of projects, and that the landslide is a medium layer landslide in robust period. According to the study results, the stability of the landslide is discussed, and the harnessing project of it is also put forward.