Capillary water retention curve and shear strength of unsaturated soils

Zhou, A; Huang, R; Sheng, D

Capillary water retention curve and shear strength of unsaturated soils

Zhou, A Huang, R Sheng, D

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Publisher:: CANADIAN SCIENCE PUBLISHING, NRC RESEARCH PRESS
Publication Type:: Journal Article
Citation:: Canadian Geotechnical Journal, 2016, 53, (6), pp. 974-987
Issue Date:: 2016-01-01

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Field	Value	Language
dc.contributor.author	Zhou, A
dc.contributor.author	Huang, R
dc.contributor.author	Sheng, D https://orcid.org/0000-0002-1665-6931
dc.date.accessioned	2022-08-12T23:00:16Z
dc.date.available	2022-08-12T23:00:16Z
dc.date.issued	2016-01-01
dc.identifier.citation	Canadian Geotechnical Journal, 2016, 53, (6), pp. 974-987
dc.identifier.issn	0008-3674
dc.identifier.issn	1208-6010
dc.identifier.uri	http://hdl.handle.net/10453/160058
dc.description.abstract	This paper proposes a new water retention model for unsaturated soils, which takes into account capillary condensation of adsorbed water. In this model, the degree of saturation of a soil is separated into that based on capillary water and that based on adsorbed water. Through analysis of a partially saturated two-cylinder system, a new shear strength criterion for unsaturated soils is proposed, in which only the degree of saturation based on capillary water contributes to the variation of shear strength with suction. The proposed shear strength criterion is justified against thermodynamic principles and is compared against existing criteria in the literature, which shows that it provides a much improved prediction of the experimental data for a wide range of suction values.
dc.language	English
dc.publisher	CANADIAN SCIENCE PUBLISHING, NRC RESEARCH PRESS
dc.relation.ispartof	Canadian Geotechnical Journal
dc.relation.isbasedon	10.1139/cgj-2015-0322
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	0905 Civil Engineering, 0907 Environmental Engineering
dc.subject.classification	Geological & Geomatics Engineering
dc.title	Capillary water retention curve and shear strength of unsaturated soils
dc.type	Journal Article
utslib.citation.volume	53
utslib.for	0905 Civil Engineering
utslib.for	0907 Environmental Engineering
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
utslib.copyright.status	closed_access	*
dc.date.updated	2022-08-12T23:00:13Z
pubs.issue	6
pubs.publication-status	Published
pubs.volume	53
utslib.citation.issue	6

Abstract:

This paper proposes a new water retention model for unsaturated soils, which takes into account capillary condensation of adsorbed water. In this model, the degree of saturation of a soil is separated into that based on capillary water and that based on adsorbed water. Through analysis of a partially saturated two-cylinder system, a new shear strength criterion for unsaturated soils is proposed, in which only the degree of saturation based on capillary water contributes to the variation of shear strength with suction. The proposed shear strength criterion is justified against thermodynamic principles and is compared against existing criteria in the literature, which shows that it provides a much improved prediction of the experimental data for a wide range of suction values.

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http://hdl.handle.net/10453/160058