Yield strength ratio and liquefaction analysis of slopes and embankments

Research output: Contribution to journalArticlepeer-review

Abstract

A procedure is proposed to evaluate the triggering of liquefaction in ground subjected to a static shear stress, i.e., sloping ground, using the yield strength ratio, su(yieId /σ′v0. Thirty liquefaction flow failures were back analyzed to evaluate shear strengths and strength ratios mobilized at the triggering of liquefaction. Strength ratios mobilized during the static liquefaction flow failures ranged from approximately 0.24 to 0.30 and are correlated to corrected cone and standard penetration resistances. These yield strength ratios and previously published liquefied strength ratios are used to develop a comprehensive liquefaction analysis for ground subjected to a static shear stress. This analysis addresses: (1) liquefaction susceptibility; (2) liquefaction triggering; and (3) post-triggering/flow failure stability. In particular, step (2) uses the yield strength ratio back-calculated from flow failure case histories and the cyclic stress method to incorporate seismic loading.

Original languageEnglish (US)
Pages (from-to)727-737
Number of pages11
JournalJournal of Geotechnical and Geoenvironmental Engineering
Volume129
Issue number8
DOIs
StatePublished - Aug 2003

Keywords

  • Embankments
  • Liquefaction
  • Shear strength
  • Slopes

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology
  • Environmental Science(all)

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