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    Probabilistic Stability Analyses of Embankments Based on Finite-Element Method

    Source: Journal of Geotechnical and Geoenvironmental Engineering:;2006:;Volume ( 132 ):;issue: 011
    Author:
    B. Xu
    ,
    B. K. Low
    DOI: 10.1061/(ASCE)1090-0241(2006)132:11(1444)
    Publisher: American Society of Civil Engineers
    Abstract: Conventional limit equilibrium methods are commonly used to assess the stability of embankments. The finite-element method, as an alternative to limit equilibrium methods, is being increasingly used in the deterministic stability analysis of slopes or embankments. In this paper, a practical procedure for integrating the finite-element method and the limit equilibrium methods into probabilistic stability analysis for embankments is presented. The response surface method is adopted to approximate the performance function for the stability problems and the first-order reliability method is used to calculate the reliability index based on an intuitive expanding ellipsoid perspective. The advantages of the response surface method as a bridge between stand-alone numerical packages and spreadsheet-based reliability analysis via automatic constrained optimization are demonstrated and discussed through a hypothetical two-layer slope and an actual case of the James Bay Dykes. The results show the ease and successful implementation of the proposed procedure for reliability analysis of embankments.
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      Probabilistic Stability Analyses of Embankments Based on Finite-Element Method

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    http://yetl.yabesh.ir/yetl1/handle/yetl/52815
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    contributor authorB. Xu
    contributor authorB. K. Low
    date accessioned2017-05-08T21:28:26Z
    date available2017-05-08T21:28:26Z
    date copyrightNovember 2006
    date issued2006
    identifier other%28asce%291090-0241%282006%29132%3A11%281444%29.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/52815
    description abstractConventional limit equilibrium methods are commonly used to assess the stability of embankments. The finite-element method, as an alternative to limit equilibrium methods, is being increasingly used in the deterministic stability analysis of slopes or embankments. In this paper, a practical procedure for integrating the finite-element method and the limit equilibrium methods into probabilistic stability analysis for embankments is presented. The response surface method is adopted to approximate the performance function for the stability problems and the first-order reliability method is used to calculate the reliability index based on an intuitive expanding ellipsoid perspective. The advantages of the response surface method as a bridge between stand-alone numerical packages and spreadsheet-based reliability analysis via automatic constrained optimization are demonstrated and discussed through a hypothetical two-layer slope and an actual case of the James Bay Dykes. The results show the ease and successful implementation of the proposed procedure for reliability analysis of embankments.
    publisherAmerican Society of Civil Engineers
    titleProbabilistic Stability Analyses of Embankments Based on Finite-Element Method
    typeJournal Paper
    journal volume132
    journal issue11
    journal titleJournal of Geotechnical and Geoenvironmental Engineering
    identifier doi10.1061/(ASCE)1090-0241(2006)132:11(1444)
    treeJournal of Geotechnical and Geoenvironmental Engineering:;2006:;Volume ( 132 ):;issue: 011
    contenttypeFulltext
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