三峡水库安坪库岸段斜坡破坏机制及稳定性评价

Failure Mechanism and Stability Evaluation of Slopes at Anping Section of Three Gorges Reservoir

基于斜坡的工程地质测绘和实验室分析,总结了研究地段区域滑坡规律,引入粘弹性基础板的弯曲破坏原理,对该地段斜坡破坏机制进行分析。从岩体本身的质量和岩体在地球内外营力作用下所表现的自稳性两方面考虑,采用两级模糊综合评判理论对测区进行斜坡稳定性工程地质单元划分,并利用刚体平衡理论验证模糊评判结果。

In this paper, failure mechanism of slopes at the section was analysed based on engineering geological survey and mapping and experimental analysis according to the landslide law in the studied section. With considerations of both quality of rock mass and its self— stability under the action of endogenic and exogenic forces of the globe, two —stage fuzzy integration judgment theory was used to divide the engineering geological elements for the slope stability in surveyed area. Theory of rigid body equilibrium was used to verify the results of fuzzy judgment .