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Modelling the influence of stress–strain history on the initial shear stiffness of an unsaturated compacted silt.
- Source :
-
Canadian Geotechnical Journal . Apr2007, Vol. 44 Issue 4, p463-472. 10p. 2 Charts, 16 Graphs. - Publication Year :
- 2007
-
Abstract
- This is the follow-up paper to Vassallo et al. (2007), which discussed the experimentally observed small-strain behaviour of an unsaturated compacted silt. The influence that suction and, more in general, mean net stress – suction history has on the initial shear stiffness was analysed and ascribed to the accumulation of irreversible volumetric strains. In this study, a model able to predict the observed behaviour is proposed, based on classical unsaturated soil volumetric hardening elastoplastic formulations. Starting from the interpretation of the results relative to simple stress paths, such as preliminary equalization and loading–unloading compression, the results of "complex" stress paths, such as those including drying–wetting cycles, have subsequently been modelled by introducing some additional parameters. [ABSTRACT FROM AUTHOR]
- Subjects :
- *SILT
*SHEAR strength of soils
*SEDIMENTS
*STRAINS & stresses (Mechanics)
*GEOLOGY
Subjects
Details
- Language :
- English
- ISSN :
- 00083674
- Volume :
- 44
- Issue :
- 4
- Database :
- Academic Search Index
- Journal :
- Canadian Geotechnical Journal
- Publication Type :
- Academic Journal
- Accession number :
- 25437277
- Full Text :
- https://doi.org/10.1139/T06-130