Journal
SOILS AND FOUNDATIONS
Volume 54, Issue 3, Pages 451-461Publisher
JAPANESE GEOTECHNICAL SOC
DOI: 10.1016/j.sandf.2014.04.016
Keywords
Particle breakage Particle crushing; Critical state; Sand; Compressibility; Constitutive relations; Deformation; State parameter
Ask authors/readers for more resources
Soil particles break during shear, with the intensity of the breakage depending on the stress level amongst other factors. Particle breakage has important implications for the soils critical state, which is an input to the majority of advanced constitutive models. This work examines a micromechanical framework where particle breakage shifts down the critical state locus in void ratio versus mean effective stress space without changing its slope. The framework assumes that detectable particle breakage in sand does not occur unless the contraction potential of the material, solely by the sliding and the rolling of the particles, is exhausted and a soil specific stress level threshold is surpassed. A series of triaxial compression tests conducted to investigate the validity of the framework is presented. It is shown that particle breakage is a factor, working alongside dilatancy, imposing additional compressibility on the soil. (C) 2014 The Japanese Geotechnical Society. Production and hosting by Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available