Reliability-based assessment of stability of slopes

C. Hsein Juang, Jie Zhang, Wenping Gong

Research output: Contribution to journalConference articlepeer-review

12 Scopus citations


Multiple sources of uncertainties often exist in the evaluation of slope stability. When assessing stability of slopes in the face of uncertainties, it is desirable, and sometimes necessary, to adopt reliability-based approaches that consider these uncertainties explicitly. This paper focuses on the practical procedures developed recently for the reliability-based assessment of slope stability. The statistical characterization of model uncertainty and parameter uncertainty are first described, followed by an evaluation of the failure probability of a slope corresponding to a single slip surface, and the system failure probability. The availability of site-specific information then makes it possible to update the reliability of the slope through the Bayes' theorem. Furthermore, how to perform reliability-based design when the statistics of random variables cannot be determined accurately is also discussed. Finally, case studies are presented to illustrate the benefit of performing reliability-based design and the procedure for conducting reliability-based robust design when the statistics of the random variables are incomplete.

Original languageEnglish
Article number012006
JournalIOP Conference Series: Earth and Environmental Science
Issue number1
StatePublished - 9 Sep 2015
EventInternational Symposium on Geohazards and Geomechanics, ISGG 2015 - Warwick, United Kingdom
Duration: 10 Sep 201511 Sep 2015


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