如美水电站坡体变形破坏的地质模式  

Geological Model of Slope Deformation and Failure of Rumei Hydropower Station

作　　者：原先凡[1] 李建荣[1] 何明[2] 汤开宇[1] 

机构地区：[1]三峡大学土木与建筑学院,湖北宜昌443002 [2]三峡大学水利与环境学院,湖北宜昌443002

出　　处：《人民黄河》2013年第6期131-133,137,共4页Yellow River

基　　金：三峡大学研究生科研创新基金资助项目(2012CX022)

摘　　要：边坡的工程地质模式可归纳为有明显控制性结构面和无明显控制性结构面的边坡工程地质模式。在实际工程中,边坡的破坏大都是受结构面控制的,结构面很大程度上决定了边坡破坏的模式、滑动的方向和滑动坡体的大小。结合祁生文等的研究成果,通过对如美水电站的地质调查,对工程区内坡体的破坏模式进行研究分析。结果表明:坝址区内结构面控制着边坡的变形破坏,其变形破坏模式符合祁生文等提出的当岩质边坡具有明显控制性结构面时,边坡的变形破坏决定于结构面的形态特征及与边坡特征的组合形式。如美水电站坝址区内结构面的形态特征主要表现为缓倾坡外,边坡的破坏形式也主要表现为顺结构面向坡外滑动。The model of the slope engineering geological can be summarized as the model with obvious controlling structural plane and the model without obvious controlling structural plane.In actual engineering,many of slope destruction are controlled by the structural plane,and structural planes largely determines the slope failure pattern,the sliding direction and the size of the sliding slope.Combining with the research results of Qi Shengwen etc.and through survey the geological of Rumei Hydropower Station,the failure mode of the slope in engineering area was researched.Results show that the structural plane in the dam site area control the slope deformation and failure,the deformation failure mode meets the research results of Qi Shengwen etc,which is that when rock slope has obvious structural plane,the slope deformation failure depends on the structure plane morphological characteristics and the combined form with characteristics of slope.The structure plane morphology characteristics of Rumei Hydropower Station dam site zone are mainly characterized by flat outside the slope,and the destruction forms of the slope are mainly for suitable structure facing outside the slope.

关 键 词：变形破坏 地质模式 控制作用 结构面 如美水电站 

分 类 号：TV698.2[水利工程—水利水电工程]