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Article Navigation >  Journal of Traffic and Transportation Engineering  > 2007  >  7(2): 59-64
Jing Hong-jun, Hu Chang-shun, Wang Bing-gang, Ding Ning, Li Yue-cai. 3-D consolidation numerical calculation of loess-high embankment[J]. Journal of Traffic and Transportation Engineering, 2007, 7(2): 59-64.
Citation: Jing Hong-jun, Hu Chang-shun, Wang Bing-gang, Ding Ning, Li Yue-cai. 3-D consolidation numerical calculation of loess-high embankment[J]. Journal of Traffic and Transportation Engineering, 2007, 7(2): 59-64.
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3-D consolidation numerical calculation of loess-high embankment

  • 1.

    School of Aerospace, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, China

  • 2.

    School of Highway, Chang'an University, Xi'an 710064, Shaanxi, China

  • 3.

    Xianyang Municipal Communications Bureau of Shaanxi Province, Xianyang 712000, Shaanxi, China

  • 4.

    Yulin Municipal Road Administration Department of Shaanxi Province, Yulin 719000, Shaanxi, China

  • 5.

    Chengtong Mechanisation Highway Engineering Ltd.Co.of Shaanxi Province, Xi'an 710068, Shaanxi, China

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  • Author Bio:

    Jing Hong-jun(1974-), male, PhD, lecturer, +86-29-33219809, jinghj@public.xa.sn.cn

  • Received Date: 2006-06-28
  • Publish Date: 2007-04-25
    Abstract
  • According to the structural, under-compressible, unsaturated and anisotropic characters of loess, loess was regarded as unsaturated soil, its 3-D consolidation equations were derived based on unsaturated soil theory, and its consolidation deformation characters were analyzed by FEM.It is pointed that compressed subgrade settlement deformation appears "sag" shape, its maximum settlement lies in embackment center, embackment shoulder settlement is minimum, and 1/3~2/3 of embankment high appears outward "extrusion" tendency; stress change tendency is inward and downward increasing, and minimum shear stress lies in slope toe; for unsaturated soil, after instantaneous loading, its surface settlement contains instantaneous settlement and soil mass consolidation settlement, and the former is main deformation.Analysis result shows derived unsaturated loess 3-D consolidation equations can well simulate and analyze the consolidation deformation of loess embankment, and its application prospect is quite good.

     

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