Critical state behaviour of an unsaturated high-plasticity clay

Burton, GJ; Sheng, D; Airey, DW

Critical state behaviour of an unsaturated high-plasticity clay

Burton, GJ Sheng, D

Airey, DW

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Publisher:: Thomas Telford Ltd.
Publication Type:: Journal Article
Citation:: Geotechnique, 2020, 70, (2), pp. 161-172
Issue Date:: 2020-02-01

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Field	Value	Language
dc.contributor.author	Burton, GJ
dc.contributor.author	Sheng, D https://orcid.org/0000-0002-1665-6931
dc.contributor.author	Airey, DW
dc.date.accessioned	2020-11-22T21:58:17Z
dc.date.available	2020-11-22T21:58:17Z
dc.date.issued	2020-02-01
dc.identifier.citation	Geotechnique, 2020, 70, (2), pp. 161-172
dc.identifier.issn	0016-8505
dc.identifier.issn	1751-7656
dc.identifier.uri	http://hdl.handle.net/10453/144233
dc.description.abstract	© 2020 ICE Publishing. All rights reserved. This paper describes a series of tests carried out to examine triaxial compression and shearing of a high-plasticity compacted clay. Reconstituted and compacted samples which were saturated are used as a basis for interpreting the unsaturated test results within a critical state soil mechanics (CSSM) framework. The shear strength behaviour of unsaturated soils have previously been found to be reasonably well captured in a CSSM framework, whereas the volume change behaviour has been more difficult to rationalise. Based on test results presented using the Bishop effective stress, the volume change behaviour during shear suggests that a unique critical state line is approached, independent of the applied suction. The normalised shearing behaviour of the compacted unsaturated soil is interpreted to be analogous to that of saturated-structured soils.
dc.language	en
dc.publisher	Thomas Telford Ltd.
dc.relation.ispartof	Geotechnique
dc.relation.isbasedon	10.1680/jgeot.18.P.178
dc.rights	info:eu-repo/semantics/restrictedAccess
dc.subject	0905 Civil Engineering, 0907 Environmental Engineering, 0914 Resources Engineering and Extractive Metallurgy
dc.subject.classification	Geological & Geomatics Engineering
dc.title	Critical state behaviour of an unsaturated high-plasticity clay
dc.type	Journal Article
utslib.citation.volume	70
utslib.for	0905 Civil Engineering
utslib.for	0907 Environmental Engineering
utslib.for	0914 Resources Engineering and Extractive Metallurgy
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
pubs.organisational-group	/University of Technology Sydney
utslib.copyright.status	closed_access	*
dc.date.updated	2020-11-22T21:58:12Z
pubs.issue	2
pubs.publication-status	Published
pubs.volume	70
utslib.citation.issue	2

Abstract:

© 2020 ICE Publishing. All rights reserved. This paper describes a series of tests carried out to examine triaxial compression and shearing of a high-plasticity compacted clay. Reconstituted and compacted samples which were saturated are used as a basis for interpreting the unsaturated test results within a critical state soil mechanics (CSSM) framework. The shear strength behaviour of unsaturated soils have previously been found to be reasonably well captured in a CSSM framework, whereas the volume change behaviour has been more difficult to rationalise. Based on test results presented using the Bishop effective stress, the volume change behaviour during shear suggests that a unique critical state line is approached, independent of the applied suction. The normalised shearing behaviour of the compacted unsaturated soil is interpreted to be analogous to that of saturated-structured soils.

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http://hdl.handle.net/10453/144233