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    Stability Analysis of Prescribed Slip Surfaces Based on a Combination of the Equilibrium Equation and the Critical Unstable Condition

    Source: International Journal of Geomechanics:;2017:;Volume ( 017 ):;issue: 012
    Author:
    Lu Shi
    ,
    Bing Bai
    ,
    Xiaochun Li
    DOI: 10.1061/(ASCE)GM.1943-5622.0001034
    Publisher: American Society of Civil Engineers
    Abstract: Stability analysis of potential slip surfaces is one of the core steps of slope safety evaluation. In this study, a novel model was developed that considers the critical unstable condition that represents the limit equilibrium and displacement constraints along a prescribed slip surface. The stress distribution and the safety factor of the prescribed slip surface in the critical state can be obtained by directly solving the nonlinear equations formed by the model. By incorporating the finite-element stress analysis, the proposed model does not require interslice force assumptions as do the traditional limit-equilibrium methods and can consider the influence of stress perturbation from outside of the slip body on its stability. The numerical algorithm is also detailed in the article. In addition, an analysis of three examples is carried out to validate the effectiveness of the proposed model and to demonstrate its feature of fast convergence.
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      Stability Analysis of Prescribed Slip Surfaces Based on a Combination of the Equilibrium Equation and the Critical Unstable Condition

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4243968
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    contributor authorLu Shi
    contributor authorBing Bai
    contributor authorXiaochun Li
    date accessioned2017-12-30T12:57:59Z
    date available2017-12-30T12:57:59Z
    date issued2017
    identifier other%28ASCE%29GM.1943-5622.0001034.pdf
    identifier urihttp://138.201.223.254:8080/yetl1/handle/yetl/4243968
    description abstractStability analysis of potential slip surfaces is one of the core steps of slope safety evaluation. In this study, a novel model was developed that considers the critical unstable condition that represents the limit equilibrium and displacement constraints along a prescribed slip surface. The stress distribution and the safety factor of the prescribed slip surface in the critical state can be obtained by directly solving the nonlinear equations formed by the model. By incorporating the finite-element stress analysis, the proposed model does not require interslice force assumptions as do the traditional limit-equilibrium methods and can consider the influence of stress perturbation from outside of the slip body on its stability. The numerical algorithm is also detailed in the article. In addition, an analysis of three examples is carried out to validate the effectiveness of the proposed model and to demonstrate its feature of fast convergence.
    publisherAmerican Society of Civil Engineers
    titleStability Analysis of Prescribed Slip Surfaces Based on a Combination of the Equilibrium Equation and the Critical Unstable Condition
    typeJournal Paper
    journal volume17
    journal issue12
    journal titleInternational Journal of Geomechanics
    identifier doi10.1061/(ASCE)GM.1943-5622.0001034
    page04017118
    treeInternational Journal of Geomechanics:;2017:;Volume ( 017 ):;issue: 012
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
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