【摘 要】
：
实际的边坡多呈现出成层分布特性，但以往研究和稳定性分析主要针对均质边坡进行。成层土坡破坏特性和机理研究具有重要的工程意义和理论价值。进行了水位骤降条件下成层土
【机 构】
：
清华大学水利水电工程系,北京,中国
论文部分内容阅读
实际的边坡多呈现出成层分布特性，但以往研究和稳定性分析主要针对均质边坡进行。成层土坡破坏特性和机理研究具有重要的工程意义和理论价值。进行了水位骤降条件下成层土坡破坏的离心模型试验，观测了土坡变形破坏过程。结果表明水位骤降导致边坡发生错动破坏，边坡的成层特性对滑裂面的形状和破坏顺序影响都很大。滑裂面在砂层中近似为一条直线，而在黏土层中有一定的曲率。砂层和黏土层分别表现出从下而上和从上而下的滑裂面发展过程。土坡的变形局部化是破坏的原因。
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