湖南桂武高速公路某路堑边坡稳定性分析  

Stability Analysis of A Cutting Slope in Hunan Guiwu Expressway

作　　者：周北[1] 刘小平 

机构地区：[1]广西壮族自治区公路管理局,广西南宁530028 [2]湖南省大岳高速公路建设开发有限公司,湖南岳阳414000

出　　处：《西部交通科技》2014年第3期19-22,共4页Western China Communications Science & Technology

摘　　要：文章以湖南省桂武高速公路K1604-800K160＋941右侧路堑边坡为例，分析了上覆土层为高液限红粘土、下覆地层为软弱碳质灰岩路堑边坡失稳的形式与成因，介绍了边坡稳定性计算方法，并提出了该类型边坡失稳的处置方案。稳定性计算表明，在常规下稳定的边坡，在降雨作用下则不稳定，处置该类型边坡应同时做好支护和排水工作。With K160＋ 800~ K160＋ 941 right-side cutting slope of Hunan Guiwu Expressway as the ex- ample,this article analyzed the instability forms and causes of cutting slope with high liquid limit red clay as overlying soil layer and the weak carbonaceous limestone as the underlying strata, described the slope stability calculation methods, and proposed the treatment program for this type of slope failure. Stability calculations showed that the slope being stable under the conventional conditions becomes unstable under the effect of rainfall,and the support and drainage work is required while treating this type of slope.

关 键 词：高速公路 边坡 失稳机理 稳定性分析 边坡治理 

分 类 号：U416.14[交通运输工程—道路与铁道工程]