超载作用下含砂砾石成层边坡失稳模型试验研究  

Research on Model Test for Instability of Layered Slope with Sand and Gravel under Overload

作　　者：吴标 刘浩 Wu Biao;Liu Hao(Hunan Expressway Engineering Consulting Co.,Ltd.,Changsha 410000,China;China Nonferrous Metal Industry's Changsha Survey and Design Institute Co.,Ltd.,Changsha 410000,China)

机构地区：[1]湖南高速工程咨询有限公司,长沙市410000 [2]中国有色金属长沙勘察设计研究院有限公司,长沙市410000

出　　处：《北方交通》2022年第7期39-43,共5页Northern Communications

摘　　要：含砂砾石成层边坡较为常见,但针对该类边坡的研究较少,现场设计、施工时常将其视为均质边坡对待,与工程实际差别较大。通过建立模型试验,采用6组不同的试验方案,针对超载作用下的含砂砾石成层边坡的破坏模式、位移变形特征等展开研究,研究成果有助于更深入了解含砂砾石成层边坡的破坏过程及形态,为其稳定性研究奠定基础。The layered slope with sand and gravel is common,but there is little research on this kind of slope.It is often treated as homogeneous slope in site design and construction,which is quite different from the actual engineering.Through the establishment of model tests,six groups of different test schemes are adopted to study the failure mode,displacement and deformation characteristics of layered slope with sand and gravel under overload.The research results are helpful to further understand the failure process and shape of layered slope with sand and gravel and lay a foundation for its stability research.

关 键 词：超载 含砂砾石成层边坡 失稳 模型试验 位移 沉降 滑动面 

分 类 号：U416.14[交通运输工程—道路与铁道工程]