A Constitutive Model for Unsaturated soils based on a Compressibility Framework dependent on Suction and Degree of Saturation

Panagiotis Sitarenios, Michael Kavvadas

Research output: Chapter in Book/Report/Conference proceedingConference proceeding

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Abstract

The Modified Cam Clay model is extended to account for the behaviour of unsaturated soils using Bishop's stress. To describe the Loading - Collapse behaviour, the model incorporates a compressibility framework with suction and degree of saturation dependent compression lines. For simplicity, the present paper describes the model in the triaxial stress space with characteristic simulations of constant suction compression and triaxial tests, as well as wetting tests. The model reproduces an evolving post yield compressibility under constant suction compression, and thus, can adequately describe a maximum of collapse.

Original languageEnglish
Title of host publication3rd European Conference on Unsaturated Soils – “E-UNSAT 2016”
PublisherEDP Sciences
Number of pages6
Volume9
DOIs
Publication statusPublished - 12 Sep 2016
Externally publishedYes
Event3rd European Conference on Unsaturated Soils, E-UNSAT 2016 - Paris, France
Duration: 12 Sep 201614 Sep 2016

Publication series

NameE3S Web of Conferences
ISSN (Electronic)2267-1242

Conference

Conference3rd European Conference on Unsaturated Soils, E-UNSAT 2016
CountryFrance
CityParis
Period12/09/1614/09/16

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Bibliographical note

This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Cite this

Sitarenios, P., & Kavvadas, M. (2016). A Constitutive Model for Unsaturated soils based on a Compressibility Framework dependent on Suction and Degree of Saturation. In 3rd European Conference on Unsaturated Soils – “E-UNSAT 2016” (Vol. 9). [17010] (E3S Web of Conferences). EDP Sciences. https://doi.org/10.1051/e3sconf/20160917010