Modeling density effect on hydro-mechanical behavior of unsaturated soils

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This paper presents an advanced constitutive model for unsaturated soil based on subloading surface plasticity. The proposed model is capable of modelling typical hydro-mechanical behaviour of soils compacted to different initial densities. Bishop's effective stress and the effective degree of saturation are selected as two fundamental constitutive variables in the proposed constitutive model. A sub-loading surface and a unified hardening parameter are introduced into the stress-saturation modelling framework to interpret the effects of initial density on hydro-mechanical behaviour of compacted soils. The proposed advanced unsaturated soil model is then validated against a number of experimental results reported in the literature.

Original languageEnglish
Title of host publicationUnsaturated Soils
Subtitle of host publicationResearch and Applications - Proceedings of the 6th International Conference on Unsaturated Soils, UNSAT 2014
PublisherTaylor and Francis - Balkema
Pages503-509
Number of pages7
ISBN (Print)9781138026896
StatePublished - 2014
Externally publishedYes
Event6th International Conference on Unsaturated Soils, UNSAT 2014 - Sydney, NSW, Australia
Duration: 2 Jul 20144 Jul 2014

Publication series

NameUnsaturated Soils: Research and Applications - Proceedings of the 6th International Conference on Unsaturated Soils, UNSAT 2014
Volume1

Conference

Conference6th International Conference on Unsaturated Soils, UNSAT 2014
Country/TerritoryAustralia
CitySydney, NSW
Period2/07/144/07/14

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