Large-scale triaxial tests on behavior of gravelly soil at different shearing rates

Jungao Zhu, Xuan Gong, Jianfang Zhou, Wei Jin, Jianhua Yin

Research output: Journal article publicationJournal articleAcademic researchpeer-review

4 Citations (Scopus)

Abstract

The stress-strain behavior and shear strength of gravelly soil at different shearing rates were investigated through a triaxial consolidated-drained shear test on the gravelly soil of a core rockfill dam. The results show that regardless of the level of the shearing rate, the stress-strain behaviors of the gravelly soil exhibited various degrees of hardening and shear shrinkage under different confining pressures. As the shearing rate increased, the hardening gradually strengthened but the shrinkage weakened. The peak deviatoric stress (σ1-σ3)fdecreased remarkably with the increase of the shearing rate, and the intensity index φ decreased significantly. In the range of testing shearing rates, the secant modulus E1decreased with the increase of the shearing rate, and the bulk modulus K1increased initially, and then decreased with the increase of the shearing rate.
Original languageChinese (Simplified)
Pages (from-to)29-34
Number of pages6
JournalJournal of Hohai University
Volume42
Issue number1
DOIs
Publication statusPublished - 1 Jan 2014

Keywords

  • Consolidated-drained shear test
  • Gravelly soil
  • Large-scale triaxial test
  • Shearing rate
  • Soil strength behavior

ASJC Scopus subject areas

  • Water Science and Technology
  • Earth and Planetary Sciences(all)

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