层状岩体边坡顺层破坏机理研究

Study on bedding failure mechanism of bedded rock side-slope

李家峡水电站坝址和近坝库区，无论是自然边坡或人工边坡，其破坏机理和破坏类型，均与层间挤压带的分布和它们与其他结构面或与临空面的组合关系密切相关。通过工程实践，将层状岩体边坡顺层破坏机理归纳为三方面的问题，即：平面旋转滑动、解体滑动和渐进破坏。并对这种边坡的治理原则提出了看法和认识。

In the dam site and reservoir area which is close to the dam, their destructive mechanism and type are closely related to the distribution of crushed zone and the combination relationships of them with other structural faces or air faces, regardless of natural slope and artificial slope. Through the engineering practice,the bedding failure mech anisms of bedded rock side-slope could be divided into three types: plane rotatory sliding, disintegration sliding and gradual destruction. The treatment principles for this slope destruction have been put forward.