大奔流沟料场高边坡变形破坏模式与稳定性分析  

Analysis on deformation failure mode and stability of high slope at Dabenliugou quarry

作　　者：刘大显 孙云志 冉隆田 淤汝山 

机构地区：[1]长江岩土工程总公司(武汉),湖北武汉430010

出　　处：《人民长江》2013年第14期8-12,21,共6页Yangtze River

摘　　要：通过大量现场调查和地质编录资料分析,对开挖施工中的大奔流沟料场高边坡的变形破坏类型、破坏特征及变形破坏机制等进行了深入研究,认为其正面坡存在整体溃屈破坏和岩层滑移剪出破坏模式,南侧边坡存在压裂滑移剪出破坏模式及局部块体破坏模式。结合刚体极限平衡法的计算结果,对整个边坡稳定性进行了评价。分析结果对边坡的支护设计工作有一定的指导作用。Through analysis of massive in-situ investigation and geological logging data,the deformation and failure mode,failure characteristics and deformation failure mechanism of the high slope at Dabenliugou quarry under excavation construction are researched.It is shown that the failure mode of the front slope are integrated buckling failure and shear-slip failure mode,and the failure mode of south side slope are fractured shear slip and local blocks failure.Combining with the calculation results of rigid body limit equilibrium method,the stability of the whole slope is evaluated.

关 键 词：高边坡 变形破坏模式 刚体极限平衡法 大奔流沟料场 锦屏一级水电站 

分 类 号：P642[天文地球—工程地质学]