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The Role of Microstructure in the Liquefaction Mechanism

  • G. VeylonEmail author
  • F. Nicot
Conference paper
  • 1.6k Downloads
Part of the Springer Series in Geomechanics and Geoengineering book series (SSGG)

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.

Keywords

Shear Strength Principal Direction Softening Phase Biaxial Test Granular Assembly 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

References

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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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