Prediction of unsaturated shear strength from microstructurally based effective stress

This work aims at investigating the adequacy of microstructurally based effective stress to predict the shear strength of unsaturated soils over a wide range of suction. For that purpose, shear strength data are acquired on a silty clay soil through two types of unsaturated triaxial tests: suction c...

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Main Authors:	Mpawenayo Régis, Gerard Pierre
Format:	Article
Language:	English
Published:	EDP Sciences 2019-01-01
Series:	E3S Web of Conferences
Online Access:	https://www.e3s-conferences.org/articles/e3sconf/pdf/2019/18/e3sconf_isg2019_07005.pdf

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spelling	doaj-cc1c8a7b883c42e1aa9016d28807141a2021-04-02T15:26:59ZengEDP SciencesE3S Web of Conferences2267-12422019-01-01920700510.1051/e3sconf/20199207005e3sconf_isg2019_07005Prediction of unsaturated shear strength from microstructurally based effective stressMpawenayo RégisGerard PierreThis work aims at investigating the adequacy of microstructurally based effective stress to predict the shear strength of unsaturated soils over a wide range of suction. For that purpose, shear strength data are acquired on a silty clay soil through two types of unsaturated triaxial tests: suction controlled triaxial tests and unconsolidated triaxial tests at constant water content. The microstructure of the soil is determined with Mercury Intrusion Porosimetry and is directly used in different expressions of microstructurally based effective stresses available in the literature. The large range of suction tested allows to determine the most consistent expression of the effective stress to reproduce the experimental observations.https://www.e3s-conferences.org/articles/e3sconf/pdf/2019/18/e3sconf_isg2019_07005.pdf
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Mpawenayo Régis Gerard Pierre
spellingShingle	Mpawenayo Régis Gerard Pierre Prediction of unsaturated shear strength from microstructurally based effective stress E3S Web of Conferences
author_facet	Mpawenayo Régis Gerard Pierre
author_sort	Mpawenayo Régis
title	Prediction of unsaturated shear strength from microstructurally based effective stress
title_short	Prediction of unsaturated shear strength from microstructurally based effective stress
title_full	Prediction of unsaturated shear strength from microstructurally based effective stress
title_fullStr	Prediction of unsaturated shear strength from microstructurally based effective stress
title_full_unstemmed	Prediction of unsaturated shear strength from microstructurally based effective stress
title_sort	prediction of unsaturated shear strength from microstructurally based effective stress
publisher	EDP Sciences
series	E3S Web of Conferences
issn	2267-1242
publishDate	2019-01-01
description	This work aims at investigating the adequacy of microstructurally based effective stress to predict the shear strength of unsaturated soils over a wide range of suction. For that purpose, shear strength data are acquired on a silty clay soil through two types of unsaturated triaxial tests: suction controlled triaxial tests and unconsolidated triaxial tests at constant water content. The microstructure of the soil is determined with Mercury Intrusion Porosimetry and is directly used in different expressions of microstructurally based effective stresses available in the literature. The large range of suction tested allows to determine the most consistent expression of the effective stress to reproduce the experimental observations.
url	https://www.e3s-conferences.org/articles/e3sconf/pdf/2019/18/e3sconf_isg2019_07005.pdf
work_keys_str_mv	AT mpawenayoregis predictionofunsaturatedshearstrengthfrommicrostructurallybasedeffectivestress AT gerardpierre predictionofunsaturatedshearstrengthfrommicrostructurallybasedeffectivestress
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Prediction of unsaturated shear strength from microstructurally based effective stress

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