The Role of Microstructure in the Liquefaction Mechanism

  • G. VeylonEmail author
  • F. Nicot
Conference paper
Part of the Springer Series in Geomechanics and Geoengineering book series (SSGG)


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.


Shear Strength Principal Direction Softening Phase Biaxial Test Granular Assembly 
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Copyright information

© Springer International Publishing Switzerland 2015

Authors and Affiliations

  1. 1.Irstea, Civil Engineering GroupOHAXAix-en-Provence Cedex 5France
  2. 2.Irstea, Geomechanics GroupETNASaint-Martin d’HèresFrance

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