A procedure for the direct determination of Bishop's chi parameter from changes in pore size distribution

Permission is granted by ICE Publishing to print one copy for personal use. Any other use of these PDF files is subject to reprint fees.

Detalles Bibliográficos
Autores: Vaunat, Jean|||0000-0003-3579-9652, Casini, F.
Tipo de recurso: artículo
Fecha de publicación:2017
País:España
Institución:Universitat Politècnica de Catalunya (UPC)
Repositorio:UPCommons. Portal del coneixement obert de la UPC
Idioma:inglés
OAI Identifier:oai:upcommons.upc.edu:2117/107243
Acceso en línea:https://hdl.handle.net/2117/107243
https://dx.doi.org/10.1680/jgeot.15.T.016
Access Level:acceso abierto
Palabra clave:Clay soils
clays
fabric/structure of soils
partial saturation
silts
suction
Sòls argilosos
Àrees temàtiques de la UPC::Enginyeria civil::Geotècnia::Mecànica de sòls
id ES_9bd24045519c57a2a97bb045eeff04d5
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repository_id_str
spelling A procedure for the direct determination of Bishop's chi parameter from changes in pore size distributionVaunat, Jean|||0000-0003-3579-9652Casini, F.Clay soilsclaysfabric/structure of soilspartial saturationsiltssuctionSòls argilososÀrees temàtiques de la UPC::Enginyeria civil::Geotècnia::Mecànica de sòlsPermission is granted by ICE Publishing to print one copy for personal use. Any other use of these PDF files is subject to reprint fees.Most of the recent works relating to the concept of effective stress in unsaturated soils focus on the proposal by Bishop, and, more particularly, on the search for suitable relationships between Bishop's ¿ parameter and the main controlling variables. These relationships are generally formulated by theoretical derivations and back-analyses of the dependency of mechanical parameters on hydraulic variables such as suction or saturation. In this note, a new procedure is proposed to evaluate directly, and without any a priori assumptions, values for Bishop's ¿ parameter. In the first part, a general derivation based on the definition of work conjugated variables allows the ¿ parameter to be defined as the ratio of the change of water volume over the change in pore volume during a process at constant suction. This definition is further exploited to evaluate Bishop's parameter from the changes suffered by material pore size distribution during loading. The method is applied to data obtained by mercury intrusion porosimetry tests on low-plasticity silt (Jossigny silt), low-plasticity sandy clay (lean clay) and highly plastic clay (Febex clay). Values obtained for these materials show that the ¿ parameter is close to the effective degree of saturation rather than the total degree of saturation.Peer ReviewedThomas Telford20172017-07-0120172017-08-29journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/107243https://dx.doi.org/10.1680/jgeot.15.T.016reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/1072432026-05-27T15:37:01Z
dc.title.none.fl_str_mv A procedure for the direct determination of Bishop's chi parameter from changes in pore size distribution
title A procedure for the direct determination of Bishop's chi parameter from changes in pore size distribution
spellingShingle A procedure for the direct determination of Bishop's chi parameter from changes in pore size distribution
Vaunat, Jean|||0000-0003-3579-9652
Clay soils
clays
fabric/structure of soils
partial saturation
silts
suction
Sòls argilosos
Àrees temàtiques de la UPC::Enginyeria civil::Geotècnia::Mecànica de sòls
title_short A procedure for the direct determination of Bishop's chi parameter from changes in pore size distribution
title_full A procedure for the direct determination of Bishop's chi parameter from changes in pore size distribution
title_fullStr A procedure for the direct determination of Bishop's chi parameter from changes in pore size distribution
title_full_unstemmed A procedure for the direct determination of Bishop's chi parameter from changes in pore size distribution
title_sort A procedure for the direct determination of Bishop's chi parameter from changes in pore size distribution
dc.creator.none.fl_str_mv Vaunat, Jean|||0000-0003-3579-9652
Casini, F.
author Vaunat, Jean|||0000-0003-3579-9652
author_facet Vaunat, Jean|||0000-0003-3579-9652
Casini, F.
author_role author
author2 Casini, F.
author2_role author
dc.subject.none.fl_str_mv Clay soils
clays
fabric/structure of soils
partial saturation
silts
suction
Sòls argilosos
Àrees temàtiques de la UPC::Enginyeria civil::Geotècnia::Mecànica de sòls
topic Clay soils
clays
fabric/structure of soils
partial saturation
silts
suction
Sòls argilosos
Àrees temàtiques de la UPC::Enginyeria civil::Geotècnia::Mecànica de sòls
description Permission is granted by ICE Publishing to print one copy for personal use. Any other use of these PDF files is subject to reprint fees.
publishDate 2017
dc.date.none.fl_str_mv 2017
2017-07-01
2017
2017-08-29
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/2117/107243
https://dx.doi.org/10.1680/jgeot.15.T.016
url https://hdl.handle.net/2117/107243
https://dx.doi.org/10.1680/jgeot.15.T.016
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Thomas Telford
publisher.none.fl_str_mv Thomas Telford
dc.source.none.fl_str_mv reponame:UPCommons. Portal del coneixement obert de la UPC
instname:Universitat Politècnica de Catalunya (UPC)
instname_str Universitat Politècnica de Catalunya (UPC)
reponame_str UPCommons. Portal del coneixement obert de la UPC
collection UPCommons. Portal del coneixement obert de la UPC
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869414603805425664
score 15,301603

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