New pole-searching algorithm with applications to probabilistic circular slope stability assessment

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题名:	New pole-searching algorithm with applications to probabilistic circular slope stability assessment
作者:	王瑞斌;Wang, Jui-Pin;Yang, Zijiang;Huang, Duruo
贡献者:	工學院土木工程學系
关键词:	algorithms;Circular slope stability;computers;Monte Carlo method;Pole-searching algorithm;Probabilistic and deterministic analyses;probability analysis;soil heterogeneity
日期:	2013-02-01
上传时间:	2026-04-21 13:33:15 (UTC+8)
出版者:	Elsevier Ltd.;Elsevier Ltd
摘要:	摘要： Conventional deterministic analysis for evaluating slope stability, although computationally efficient, is gradually shadowed by probabilistic analysis in two aspects. First deterministic analysis does not account for inevitable soil variability, and secondly its assessment would be deficient especially under a critical condition. However, probabilistic analysis that is computationally expensive sometime deters itself from being used when efficient algorithms are absent. For optimizing the calculation during probabilistic slope analysis, this study introduces a new algorithm in searching for the center of a circular slip surface, referred to as the pole. Not only can this algorithm effectively locate the pole, but its accuracy is improved compared to that of the conventional method. This study further demonstrates the algorithm by performing a probabilistic analysis for a benchmark slope through Monte Carlo Simulation. Such a probabilistic analysis saves 106h from the use of the conventional pole-searching algorithm in an equivalent analysis. The results show that circular slope stability is indeed affected by soil variability, which should not be overlooked since it is inevitable owing to natural randomness. ► A new pole-searching algorithm for circular slope analysis was developed. ► The efficient method makes it possible to be coupled with probabilistic analysis. ► A benchmark example was demonstrated. ► Source codes for this algorithm are also provided for readers' reference. 出版者： Elsevier Ltd 出版日期： 2013-02-01 出處： Computers & geosciences, 2013-02, Vol.51, p.83-89 資源來源： Elsevier ScienceDirect Journals Complete 版權： 2012 Elsevier Ltd 識別號： ISSN: 0098-3004 識別號： EISSN: 1873-7803 識別號： DOI: 10.1016/j.cageo.2012.08.017
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