Effect of stress state on the unsaturated shear strength of a weathered granite

In Mo Lee, Sang G. Sung, Gye Chun Cho

Research output: Contribution to journalArticle

91 Citations (Scopus)

Abstract

The effect of stress state on the unsaturated shear strength of a Korean residual soil was studied using modified triaxial tests. Experimental results show that the soil-water characteristic curve and shear strength of this soil are significantly affected by the change of net normal stresses. This effect should be taken into consideration in the model to precisely describe the shear strength envelope of unsaturated soils. Thus, a new model for estimation of unsaturated shear strength is proposed using the soil-water characteristic curve and the saturated shear strength parameters.

Original languageEnglish
Pages (from-to)624-631
Number of pages8
JournalCanadian Geotechnical Journal
Volume42
Issue number2
DOIs
Publication statusPublished - 2005 Apr 1

Keywords

  • Matric suction
  • Prediction model
  • Soil-water characteristic curve
  • Triaxial test
  • Unsaturated shear strength

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology

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