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The Role of Microstructure in the Liquefaction Mechanism

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Bifurcation and Degradation of Geomaterials in the New Millennium (IWBDG 2014)

Part of the book series: Springer Series in Geomechanics and Geoengineering ((SSGG))

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Abstract

Microdirectional models involving a mesoscopic scale constitute a good alternative to phenomenological models. In the H-microdirectional model, the granular assembly is modeled by a distribution of hexagonal patterns of grains in contact oriented in space. In this paper, we investigate the micromechanical origin of the liquefaction observed from the H-microdirectional model in the light of an analysis of individual behavior of each hexagon. It is shown that the principal direction of anisotropy determines the liquefaction susceptibility of a soil, whereas the degree of anisotropy affects the amplitude of the post-peak loss of shear strength.

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Author information

Authors and Affiliations

  1. Irstea, Civil Engineering Group, OHAX, 3275 route de Cézanne, CS 40061, 13182, Aix-en-Provence Cedex 5, France

    G. Veylon

  2. Irstea, Geomechanics Group, ETNA, 2 rue de la Papeterie, BP 76, 38402, Saint-Martin d’Hères, France

    F. Nicot

Authors
  1. G. Veylon
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  2. F. Nicot
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Corresponding author

Correspondence to G. Veylon .

Editor information

Editors and Affiliations

  1. Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hong Kong, China

    Kam-Tim Chau

  2. Department of Civil and Environmental Engineering, The Hong Kong University of Science and Technology, Kowloon, Hong Kong, China

    Jidong Zhao

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Veylon, G., Nicot, F. (2015). The Role of Microstructure in the Liquefaction Mechanism. In: Chau, KT., Zhao, J. (eds) Bifurcation and Degradation of Geomaterials in the New Millennium. IWBDG 2014. Springer Series in Geomechanics and Geoengineering. Springer, Cham. https://doi.org/10.1007/978-3-319-13506-9_49

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  • DOI: https://doi.org/10.1007/978-3-319-13506-9_49

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-319-13505-2

  • Online ISBN: 978-3-319-13506-9

  • eBook Packages: EngineeringEngineering (R0)

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