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    Seismic Stability of the Slope Containing a Laterally Loaded Pile by Finite-Element Limit Analysis

    Source: International Journal of Geomechanics:;2022:;Volume ( 022 ):;issue: 001::page 06021033
    Author:
    Wenzhe Peng
    ,
    Minghua Zhao
    ,
    Heng Zhao
    ,
    Chaowei Yang
    DOI: 10.1061/(ASCE)GM.1943-5622.0002226
    Publisher: ASCE
    Abstract: In this study, the seismic stability of a slope containing a laterally loaded pile under seismic conditions is evaluated by the finite-element limit analysis (FELA) approach. The seismic action is idealized as a horizontal seismic coefficient, ranging from 0 to 0.3, within the framework of the pseudo-static approach, and applied as an accelerogram of earthquakes to the numerical model in the seismic analysis. By means of the adaptive meshing technique, the finite-element method, and limit theorem of plasticity, the slope failure mechanism need not be presumed in advance. The feasibility of the FELA is validated by comparing the obtained factors of safety and critical sliding surfaces with those provided by published literature. Based on this, the effects of various factors (e.g., horizontal seismic coefficient, internal friction angle, cohesion, slope angle, slope height, and lateral load atop the pile) on the factor of safety and failure mechanism, with a normalized parameter (seismic-multiplier) is proposed. Furthermore, some detailed design tables and four representative slope failure patterns are presented to estimate the seismic stability of the slope containing a laterally loaded pile.
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      Seismic Stability of the Slope Containing a Laterally Loaded Pile by Finite-Element Limit Analysis

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4283354
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    contributor authorWenzhe Peng
    contributor authorMinghua Zhao
    contributor authorHeng Zhao
    contributor authorChaowei Yang
    date accessioned2022-05-07T21:07:23Z
    date available2022-05-07T21:07:23Z
    date issued2022-1-1
    identifier other(ASCE)GM.1943-5622.0002226.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4283354
    description abstractIn this study, the seismic stability of a slope containing a laterally loaded pile under seismic conditions is evaluated by the finite-element limit analysis (FELA) approach. The seismic action is idealized as a horizontal seismic coefficient, ranging from 0 to 0.3, within the framework of the pseudo-static approach, and applied as an accelerogram of earthquakes to the numerical model in the seismic analysis. By means of the adaptive meshing technique, the finite-element method, and limit theorem of plasticity, the slope failure mechanism need not be presumed in advance. The feasibility of the FELA is validated by comparing the obtained factors of safety and critical sliding surfaces with those provided by published literature. Based on this, the effects of various factors (e.g., horizontal seismic coefficient, internal friction angle, cohesion, slope angle, slope height, and lateral load atop the pile) on the factor of safety and failure mechanism, with a normalized parameter (seismic-multiplier) is proposed. Furthermore, some detailed design tables and four representative slope failure patterns are presented to estimate the seismic stability of the slope containing a laterally loaded pile.
    publisherASCE
    titleSeismic Stability of the Slope Containing a Laterally Loaded Pile by Finite-Element Limit Analysis
    typeJournal Paper
    journal volume22
    journal issue1
    journal titleInternational Journal of Geomechanics
    identifier doi10.1061/(ASCE)GM.1943-5622.0002226
    journal fristpage06021033
    journal lastpage06021033-14
    page14
    treeInternational Journal of Geomechanics:;2022:;Volume ( 022 ):;issue: 001
    contenttypeFulltext
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