贵州省三凯高速公路南约沟滑坡处治设计

Sankai Expressway Nanyue Ravine Landslide Treatment Design in Guizhou Province

贵州省三穗至凯里高速公路第十三合同段K126＋900-K127＋020路段位于南约沟滑坡。该滑坡在前期施工削坡减载之后发生滑动，对工程的顺利进行构成了很大影响。为确保该路段公路建设和使用安全，进行了勘察工作，根据勘察获得的该段滑坡的实际地质条件和滑坡体的物理力学参数，对边坡的稳定性进行了评价，表明当前的滑坡体处于不稳定状态，做出了削坡、锚索、抗滑桩和排水的综合性治理措施。治理后滑坡处于稳定状态，达到了治理目的。

The 13th contract road section of Sansui to Kaili Expressway（from GK126＋900 to GK127＋020）in Guizhou province are laid on Nanyue ravine landslide. After slope cutting＆unloading, the landslide has slide, which will badly influence the construction progress and safety. In this paper, the authors have analyzed its stability based on the practical geological conditions and mechanical parameters of the landslide derived from site surveying. The analysis comes into a conclusion that the slide is unsteady. So the authors have suggested comprehensive measures, such as another slope cutting, anchoring, slide-resisting piling and water draining, should be taken. After these treatments the landslide becomes steady.