某高速公路滑坡稳定性评价及治理方案设计

A Highway Landslide Stability Evaluation and Management Scheme Design

以湖南境在建郴宁高速公路某大型滑坡作为研究对象,在综合分析已有的工程地质勘探资料的基础上,对滑坡产生的原因进行了剖析,同时运用极限平衡法,分析了滑坡变形破坏的模式及滑坡的安全稳定系数。鉴于目前边坡施工完成的情况及整体的边坡破坏程度,通过综合分析,提出了在尽量减少干扰并重新挖除已施工的边坡的情况下,采取适当削坡+抗滑桩强加固治理措施。

Tangking a large landslide of Chenzhou-Ningyuan Expressway in Hunan Province as the research object,on the basis of the existing engineering geological exploration data,the causes of the landslide are analyzed,at the same time,the deformation failure mode and the stability safety coefficient of the landslide are analyzed by using the limit equilibrium method.In view of completion and the whole failure extent of the slope,in cases of minimizing interference and re-excavating the landslide under construction,a reinforcement measure is put forward by comprehensive analysis,which using the appropriate cutting-slope ＋ anti-slide piles.