Effect of thermo-coupled processes on the behaviour of a clay barrier submitted to heating and hydration

The storage of high level radioactive waste is still an unresolved problem of the nuclear industry, being geological disposal the most favoured option and, naturally, the one requiring the strongest geo-mechanical input. Most conceptual designs for the deep geological disposal of nuclear waste envis...

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Autores: Sánchez, M., Gens Solé, Antonio|||0000-0001-7588-7054, Olivella Pastallé, Sebastià|||0000-0003-3976-4027
Tipo de recurso: artículo
Fecha de publicación:2010
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:2117/11178
Acceso en línea:https://hdl.handle.net/2117/11178
Access Level:acceso abierto
Palabra clave:Radioactive wastes--Storage
Soil mechanics
expansive clays
heating test
nuclear waste disposal
thermo-hydro-mechanical coupled analysis
Residus radioactius -- Emmagatzematge
Geomecànica
Àrees temàtiques de la UPC::Enginyeria civil::Geotècnia::Mecànica de sòls
Àrees temàtiques de la UPC::Desenvolupament humà i sostenible::Enginyeria ambiental::Tractament dels residus
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oai_identifier_str oai:upcommons.upc.edu:2117/11178
network_acronym_str ES
network_name_str España
repository_id_str
spelling Effect of thermo-coupled processes on the behaviour of a clay barrier submitted to heating and hydrationSánchez, M.Gens Solé, Antonio|||0000-0001-7588-7054Olivella Pastallé, Sebastià|||0000-0003-3976-4027Radioactive wastes--StorageSoil mechanicsexpansive claysheating testnuclear waste disposalthermo-hydro-mechanical coupled analysisResidus radioactius -- EmmagatzematgeGeomecànicaÀrees temàtiques de la UPC::Enginyeria civil::Geotècnia::Mecànica de sòlsÀrees temàtiques de la UPC::Desenvolupament humà i sostenible::Enginyeria ambiental::Tractament dels residusThe storage of high level radioactive waste is still an unresolved problem of the nuclear industry, being geological disposal the most favoured option and, naturally, the one requiring the strongest geo-mechanical input. Most conceptual designs for the deep geological disposal of nuclear waste envisage placing the canisters containing the waste in horizontal drifts or vertical boreholes. The empty space surrounding the canisters is filled by an engineered barrier often made up of compacted swelling clay. In the barrier and the near field, significant thermo-hydro-mechanical (THM) phenomena take place that interact in a complex way. A good understanding of THM issues is, therefore, necessary to ensure a correct performance of engineered barriers and seals. The conditions of the bentonite in an engineered barrier for high-level radioactive waste disposal are being simulated in a mock-up heating test at almost scale, at the premises of CIEMAT in Madrid. The evolution of the main Thermo-Hydro-Mechanical (THM) variables of this test are analysed in this paper by using a fully coupled THM formulation and the corresponding finite element code. Special emphasis has been placed on the study of the effect of thermo-osmotic flow in the hydration of the clay barrier at an advanced staged of the experiment.Peer Reviewed20102010-01-0120112011-01-24journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/11178reponame: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:2117/111782026-05-27T15:37:01Z
dc.title.none.fl_str_mv Effect of thermo-coupled processes on the behaviour of a clay barrier submitted to heating and hydration
title Effect of thermo-coupled processes on the behaviour of a clay barrier submitted to heating and hydration
spellingShingle Effect of thermo-coupled processes on the behaviour of a clay barrier submitted to heating and hydration
Sánchez, M.
Radioactive wastes--Storage
Soil mechanics
expansive clays
heating test
nuclear waste disposal
thermo-hydro-mechanical coupled analysis
Residus radioactius -- Emmagatzematge
Geomecànica
Àrees temàtiques de la UPC::Enginyeria civil::Geotècnia::Mecànica de sòls
Àrees temàtiques de la UPC::Desenvolupament humà i sostenible::Enginyeria ambiental::Tractament dels residus
title_short Effect of thermo-coupled processes on the behaviour of a clay barrier submitted to heating and hydration
title_full Effect of thermo-coupled processes on the behaviour of a clay barrier submitted to heating and hydration
title_fullStr Effect of thermo-coupled processes on the behaviour of a clay barrier submitted to heating and hydration
title_full_unstemmed Effect of thermo-coupled processes on the behaviour of a clay barrier submitted to heating and hydration
title_sort Effect of thermo-coupled processes on the behaviour of a clay barrier submitted to heating and hydration
dc.creator.none.fl_str_mv Sánchez, M.
Gens Solé, Antonio|||0000-0001-7588-7054
Olivella Pastallé, Sebastià|||0000-0003-3976-4027
author Sánchez, M.
author_facet Sánchez, M.
Gens Solé, Antonio|||0000-0001-7588-7054
Olivella Pastallé, Sebastià|||0000-0003-3976-4027
author_role author
author2 Gens Solé, Antonio|||0000-0001-7588-7054
Olivella Pastallé, Sebastià|||0000-0003-3976-4027
author2_role author
author
dc.subject.none.fl_str_mv Radioactive wastes--Storage
Soil mechanics
expansive clays
heating test
nuclear waste disposal
thermo-hydro-mechanical coupled analysis
Residus radioactius -- Emmagatzematge
Geomecànica
Àrees temàtiques de la UPC::Enginyeria civil::Geotècnia::Mecànica de sòls
Àrees temàtiques de la UPC::Desenvolupament humà i sostenible::Enginyeria ambiental::Tractament dels residus
topic Radioactive wastes--Storage
Soil mechanics
expansive clays
heating test
nuclear waste disposal
thermo-hydro-mechanical coupled analysis
Residus radioactius -- Emmagatzematge
Geomecànica
Àrees temàtiques de la UPC::Enginyeria civil::Geotècnia::Mecànica de sòls
Àrees temàtiques de la UPC::Desenvolupament humà i sostenible::Enginyeria ambiental::Tractament dels residus
description The storage of high level radioactive waste is still an unresolved problem of the nuclear industry, being geological disposal the most favoured option and, naturally, the one requiring the strongest geo-mechanical input. Most conceptual designs for the deep geological disposal of nuclear waste envisage placing the canisters containing the waste in horizontal drifts or vertical boreholes. The empty space surrounding the canisters is filled by an engineered barrier often made up of compacted swelling clay. In the barrier and the near field, significant thermo-hydro-mechanical (THM) phenomena take place that interact in a complex way. A good understanding of THM issues is, therefore, necessary to ensure a correct performance of engineered barriers and seals. The conditions of the bentonite in an engineered barrier for high-level radioactive waste disposal are being simulated in a mock-up heating test at almost scale, at the premises of CIEMAT in Madrid. The evolution of the main Thermo-Hydro-Mechanical (THM) variables of this test are analysed in this paper by using a fully coupled THM formulation and the corresponding finite element code. Special emphasis has been placed on the study of the effect of thermo-osmotic flow in the hydration of the clay barrier at an advanced staged of the experiment.
publishDate 2010
dc.date.none.fl_str_mv 2010
2010-01-01
2011
2011-01-24
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/2117/11178
url https://hdl.handle.net/2117/11178
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.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
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score 15.300719

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