Characterization of liquefaction resistance of sand: Effect of initial fabric

Bo Li, Xiangwu Zeng, Hao Yu

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

The micro-fabric of deposition reflects the imprints of its geologic and stress history, its depositional environment, and its weathering history. Recent experience shows that the fabric anisotropy does influence the static and dynamic behavior of granular materials. In this study, a series of centrifuge tests are conducted to investigate the effects of fabric anisotropy on the dynamic response in the free field. The results show the acceleration, pore pressure, and residual settlement is significantly affected by the fabric anisotropy of the ground, which shows the liquefaction resistance of the ground. Meanwhile, the response of acceleration is analyzed in frequency domain, which shows that the model prepared by 90° absorbs more energy than that of 0°. To verify the effects induced by the initial fabric, permeability test are conducted and related to the liquefaction potential. The results indicate the fabric anisotropy should be incorporated into the design method.

Original languageEnglish
Article number1450001
JournalJournal of Earthquake and Tsunami
Volume8
Issue number1
DOIs
StatePublished - Mar 2014

Keywords

  • Fabric anisotropy
  • free field
  • liquefaction potential
  • permeability

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