Cut slopes failures on the Triassic beds in Coimbra, Portugal

Detalhes bibliográficos
Autor(a) principal: Quinta-Ferreira, Mário
Data de Publicação: 2013
Outros Autores: Andrade, Pedro Santarém, Lemos, Luís, Saraiva, António
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10316/35251
https://doi.org/10.1007/s10064-013-0483-6
Resumo: Several cut slope failures that occurred in the Triassic “Grés de Silves”, in the area of Areeiro in Coimbra, Portugal, are analysed. They developed along thin mudstone layers dipping at some 16º towards the face of the excavation. The failures mainly occurred after periods of intense rainfall, in some cases immediately after the excavation of the slope and in some cases have continued for the seven years since, even where the slope height was only a few metres. The conditions leading to the failures were investigated in the field and in the laboratory. It was concluded that the main factors inducing the slope failure are a conjugation of the geological structure and the reduction in the shear strength of the mudstones when the excavation results in dilation, such that fissures open allowing the ingress of water.
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spelling Cut slopes failures on the Triassic beds in Coimbra, PortugalSlope stabilityMudstoneRisksCoimbraSeveral cut slope failures that occurred in the Triassic “Grés de Silves”, in the area of Areeiro in Coimbra, Portugal, are analysed. They developed along thin mudstone layers dipping at some 16º towards the face of the excavation. The failures mainly occurred after periods of intense rainfall, in some cases immediately after the excavation of the slope and in some cases have continued for the seven years since, even where the slope height was only a few metres. The conditions leading to the failures were investigated in the field and in the laboratory. It was concluded that the main factors inducing the slope failure are a conjugation of the geological structure and the reduction in the shear strength of the mudstones when the excavation results in dilation, such that fissures open allowing the ingress of water.2013info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10316/35251http://hdl.handle.net/10316/35251https://doi.org/10.1007/s10064-013-0483-6enghttp://link.springer.com/article/10.1007%2Fs10064-013-0483-6Quinta-Ferreira, MárioAndrade, Pedro SantarémLemos, LuísSaraiva, Antónioinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2021-06-29T10:02:52Zoai:estudogeral.uc.pt:10316/35251Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T20:54:43.620733Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Cut slopes failures on the Triassic beds in Coimbra, Portugal
title Cut slopes failures on the Triassic beds in Coimbra, Portugal
spellingShingle Cut slopes failures on the Triassic beds in Coimbra, Portugal
Quinta-Ferreira, Mário
Slope stability
Mudstone
Risks
Coimbra
title_short Cut slopes failures on the Triassic beds in Coimbra, Portugal
title_full Cut slopes failures on the Triassic beds in Coimbra, Portugal
title_fullStr Cut slopes failures on the Triassic beds in Coimbra, Portugal
title_full_unstemmed Cut slopes failures on the Triassic beds in Coimbra, Portugal
title_sort Cut slopes failures on the Triassic beds in Coimbra, Portugal
author Quinta-Ferreira, Mário
author_facet Quinta-Ferreira, Mário
Andrade, Pedro Santarém
Lemos, Luís
Saraiva, António
author_role author
author2 Andrade, Pedro Santarém
Lemos, Luís
Saraiva, António
author2_role author
author
author
dc.contributor.author.fl_str_mv Quinta-Ferreira, Mário
Andrade, Pedro Santarém
Lemos, Luís
Saraiva, António
dc.subject.por.fl_str_mv Slope stability
Mudstone
Risks
Coimbra
topic Slope stability
Mudstone
Risks
Coimbra
description Several cut slope failures that occurred in the Triassic “Grés de Silves”, in the area of Areeiro in Coimbra, Portugal, are analysed. They developed along thin mudstone layers dipping at some 16º towards the face of the excavation. The failures mainly occurred after periods of intense rainfall, in some cases immediately after the excavation of the slope and in some cases have continued for the seven years since, even where the slope height was only a few metres. The conditions leading to the failures were investigated in the field and in the laboratory. It was concluded that the main factors inducing the slope failure are a conjugation of the geological structure and the reduction in the shear strength of the mudstones when the excavation results in dilation, such that fissures open allowing the ingress of water.
publishDate 2013
dc.date.none.fl_str_mv 2013
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10316/35251
http://hdl.handle.net/10316/35251
https://doi.org/10.1007/s10064-013-0483-6
url http://hdl.handle.net/10316/35251
https://doi.org/10.1007/s10064-013-0483-6
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv http://link.springer.com/article/10.1007%2Fs10064-013-0483-6
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
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reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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