Validation and Application of Reliability Analysis of Soil Slopes Using a Global Optimization Method
The validation and application of a new method for analyzing slope stability problems, which simultaneously locates the critical slip surface and the reliability index of a slope, is presented in this paper. The method allows both circular and non-circular slip surfaces to be analysed. The soil properties are considered as random variables and translated into polar coordinates, with which the re-liability index of the slope can be formulated as a function of soil properties and the slip surface. The determination of the reliability index of a slope is solved using a global optimization technique. The validation proves the method to be computationally more efficient than a Monte Carlo simulation. When applied to the back-analysis of a railway embankment slope failure, where traditional determi-nistic approaches return factors of safety greater than unity, it successfully predicted the shape of the failure surface, and indicated poor overall reliability.
Jianfeng Xue Kenneth Gavin
Former PhD student, University College Dublin, Dublin, Ireland, currently Geotechnical Engineer, Cof University College Dublin, Dublin, Ireland
国际会议
上海
英文
2007-10-18（万方平台首次上网日期，不代表论文的发表时间）