A new method for stability analysis of layered slopes based on search of sliding surface
Lianheng Zhao · Journal of Central South University(Science and Technology) · 2012
In stability analysis of slope,as the basis of a random angle generating random curve,approximate curves instead of random curves were used to search the most dangerous sliding surface through analysis and simplification of random process.The new method of searching for sliding surface was applied to layered soil slopes that were divided into several types,including interlayer stratification,inclined stratification and stratification of oblique line.Some examples of layered soil slope were chosen,and when considering separately layered soil slopes with weak interlayer and combining with existing research,the choice of types of sliding surface was analyzed and discussed through the examples of layered slope with weak interlayer to analyse the stability with this new method.The results show that the minimum factor of safety calculated with this method is slightly smaller,and the most dangerous sliding surface gotten from this method is also quite close when compared with the existing results,so it can prove effectiveness of this method and the new method can be directly used in engineering practice.