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Title: Stress-strain and strength characteristics of silt-clay transition soils
Authors: Pongpipat Anantanasakul
Jerry A. Yamamuro
Victor N. Kaliakin
Mahidol University
Oregon State University
University of Delaware
Keywords: Earth and Planetary Sciences;Environmental Science
Issue Date: 1-Jan-2012
Citation: Journal of Geotechnical and Geoenvironmental Engineering. Vol.138, No.10 (2012), 1257-1265
Abstract: The influence of nonplastic silt content on the stress-strain, volume change, and strength characteristics of anisotropic silt-clay transition soils is investigated. A series of one-dimensional compression tests, isotropic compression tests, and undrained and drained triaxial tests on three soils of similar base clay but different nonplastic silt contents are performed on cross-anisotropic specimens prepared from consolidation of slurries. Tests with major loading directions both parallel and perpendicular to the specimens' axis of deposition are performed. It is observed that the tested silt-clay soils are less compressible with increasing silt content during one-dimensional and isotropic compression tests. During drained and undrained triaxial tests, the normally consolidated soils at the same consolidation stress show larger values of stiffness and drained and undrained shear strengths with increasing silt content. The silt-clay soils also show larger pore pressure changes during undrained triaxial tests but essentially similar volumetric strains during drained tests as the silt content increases. In addition, it is observed that silt content significantly influences the anisotropy of the stress-strain and strength characteristics of the transition silt-clay soils. © 2012 American Society of Civil Engineers.
ISSN: 10900241
Appears in Collections:Scopus 2011-2015

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