Signature of Anisotropy in Liquefiable Sand Under Undrained Shear

  • Jidong ZhaoEmail author
  • Ning Guo
Conference paper
Part of the Springer Series in Geomechanics and Geoengineering book series (SSGG, volume 11)


This paper presents a study on the anisotropic behavior of liqufiable sand subjected to undrained shear, by using a 3D Discrete Element Method with two different approaches describing particle rolling. By using a sliding and free-rolling model, the force network in relation to anisotropy in medium-loose or dense samples presents a clear bimodal character, while the liquefiable loose specimen behaves differently. Appreciable degree of anisotropy is found developed in the weak force network when the sample tends to liquefy. When the rolling resistance is considered, all samples show marked increases in anisotropy in both the weak and strong force networks as well as the overall shear strengths, as compared with the free-rolling case. The loose sample tends also to be more resistant to liquefaction in the latter case than in the free rolling case under otherwise similar conditions.


Granular sand Liquefaction Anisotropy Discrete element method Rotational resistance 



This work was supported by RGCHK (Grant No. 622910, DAG08/09.EG04).


  1. E. Azéma, F. Radjaï, R. Peyroux, Force transmission in a packing of pentagonal particles. Phys. Rev. E. 76, 011–301 (2007)CrossRefGoogle Scholar
  2. J. Christoffersen, M.M. Mehrabadi, S. Nemat-Nasser, A micromechanical description of granular material behavior. J. Appl. Mech. 48, 339–344 (1981)zbMATHCrossRefGoogle Scholar
  3. N. Estrada, A. Taboada, F. Radjaï, Shear strength and force transmission in granular media with rolling resistance. Phys. Rev. E. 78, 021–301 (2008)Google Scholar
  4. N. Guo, J. Zhao, Characterization of granular anisotropy in sand under shear. J. Mech. Phys. Solids. Under review (2010)Google Scholar
  5. K. Ishihara, M. Oda, Rolling resistance at contacts in simulation of shear band development by dem. J. Eng. Mech. 124(3), 285–292 (1998)CrossRefGoogle Scholar
  6. M. Jefferies, K. Been, Soil Liquefaction: A Critical State Approach (Taylor & Francis, New York, 2006)CrossRefGoogle Scholar
  7. J. Mitchell, K. Soga, Fundamentals of Soil Behavior, 3rd edn. (John Wiley & Sons, New Jersey, 2005)Google Scholar
  8. M. Oda, Fabric tensor for discontinuous geological materials. Soil. Found. 22(4), 96–108 (1982)Google Scholar
  9. M. Oda, K. Iwashita, Mechanics of Granular Materials: An Introduction (Taylor & Francis, Balkema/Rotterdam, 1999)Google Scholar
  10. H. Ouadfel, L. Rothenburg, Stress-force-fabric relationship for assemblies of ellipsoids. Mech. Mater. 33, 201–221 (2001)CrossRefGoogle Scholar
  11. F. Radjaï, D.E. Wolf, M. Jean, J.J. Moreau, Bimodal character of stress transmission in granular packings. Phys. Rev. Lett. 80, 61–64 (1998)CrossRefGoogle Scholar
  12. M. Satake, Fabric tensor in granular materials, in Deformation and Failure of Granular Materials, ed. by P.A. Vermeer, H.J. Luger, A.A. Balkema, pp. 63–68 (1982)Google Scholar
  13. T.G. Sitharam, J.S. Vinod, B.V. Ravishankar, Post-liquefaction undrained monotonic behaviour of sands: experiments and dem simulations. Geotechnique 59(9), 739–749 (2009)Google Scholar

Copyright information

© Springer Science+Business Media B.V. 2011

Authors and Affiliations

  1. 1.Department of Civil and Environmental EngineeringHong Kong University of Science and TechnologyHong KongChina

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