Clear-water scour at submerged pile groups
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10400.6/8245 |
Resumo: | Accurate estimates of the scour depth around submerged pile groups are important in river engineering for a number of reasons, however, the literature on this issue is scarce. This study introduced an experimental campaign of 48 long-duration clear water experiments at submerged and skewed pile groups composed of cylindrical elements under steady flow. The effects of the skew angle, submergence ratio and pile group configuration on the equilibrium scour depth were investigated. The experimental scour depths were compared with the results from the HEC-18 empirical method and a modification of it to take into account a wide range of submergence ratios was proposed. Further, a new formulation to estimate the equilibrium scour depth at submerged pile groups was introduced with good agreement for the tests under consideration. Some considerations about the most employed characteristic lengths used to normalize the equilibrium scour depth were made. |
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Clear-water scour at submerged pile groupsBridgesErosion processesHabitat hydraulicsLaboratory studiesRiver training structuresAccurate estimates of the scour depth around submerged pile groups are important in river engineering for a number of reasons, however, the literature on this issue is scarce. This study introduced an experimental campaign of 48 long-duration clear water experiments at submerged and skewed pile groups composed of cylindrical elements under steady flow. The effects of the skew angle, submergence ratio and pile group configuration on the equilibrium scour depth were investigated. The experimental scour depths were compared with the results from the HEC-18 empirical method and a modification of it to take into account a wide range of submergence ratios was proposed. Further, a new formulation to estimate the equilibrium scour depth at submerged pile groups was introduced with good agreement for the tests under consideration. Some considerations about the most employed characteristic lengths used to normalize the equilibrium scour depth were made.uBibliorumGalán, ÁlvaroSimarro, GonzaloFael, Cristina Maria SenaCardoso, António Heleno2020-01-13T17:24:10Z2018-03-192018-03-19T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.6/8245engAlvaro Galan, Gonzalo Simarro, Cristina Fael & Antonio H. Cardoso (2019) Clear-water scour at submerged pile groups, International Journal of River Basin Management, 17:1, 101-108, DOI: 10.1080/15715124.2018.14469641571-512410.1080/15715124.2018.1446964metadata only accessinfo: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:RCAAP2023-12-15T09:48:06Zoai:ubibliorum.ubi.pt:10400.6/8245Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T00:48:37.309638Repositório 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 |
Clear-water scour at submerged pile groups |
title |
Clear-water scour at submerged pile groups |
spellingShingle |
Clear-water scour at submerged pile groups Galán, Álvaro Bridges Erosion processes Habitat hydraulics Laboratory studies River training structures |
title_short |
Clear-water scour at submerged pile groups |
title_full |
Clear-water scour at submerged pile groups |
title_fullStr |
Clear-water scour at submerged pile groups |
title_full_unstemmed |
Clear-water scour at submerged pile groups |
title_sort |
Clear-water scour at submerged pile groups |
author |
Galán, Álvaro |
author_facet |
Galán, Álvaro Simarro, Gonzalo Fael, Cristina Maria Sena Cardoso, António Heleno |
author_role |
author |
author2 |
Simarro, Gonzalo Fael, Cristina Maria Sena Cardoso, António Heleno |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
uBibliorum |
dc.contributor.author.fl_str_mv |
Galán, Álvaro Simarro, Gonzalo Fael, Cristina Maria Sena Cardoso, António Heleno |
dc.subject.por.fl_str_mv |
Bridges Erosion processes Habitat hydraulics Laboratory studies River training structures |
topic |
Bridges Erosion processes Habitat hydraulics Laboratory studies River training structures |
description |
Accurate estimates of the scour depth around submerged pile groups are important in river engineering for a number of reasons, however, the literature on this issue is scarce. This study introduced an experimental campaign of 48 long-duration clear water experiments at submerged and skewed pile groups composed of cylindrical elements under steady flow. The effects of the skew angle, submergence ratio and pile group configuration on the equilibrium scour depth were investigated. The experimental scour depths were compared with the results from the HEC-18 empirical method and a modification of it to take into account a wide range of submergence ratios was proposed. Further, a new formulation to estimate the equilibrium scour depth at submerged pile groups was introduced with good agreement for the tests under consideration. Some considerations about the most employed characteristic lengths used to normalize the equilibrium scour depth were made. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-03-19 2018-03-19T00:00:00Z 2020-01-13T17:24:10Z |
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/10400.6/8245 |
url |
http://hdl.handle.net/10400.6/8245 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Alvaro Galan, Gonzalo Simarro, Cristina Fael & Antonio H. Cardoso (2019) Clear-water scour at submerged pile groups, International Journal of River Basin Management, 17:1, 101-108, DOI: 10.1080/15715124.2018.1446964 1571-5124 10.1080/15715124.2018.1446964 |
dc.rights.driver.fl_str_mv |
metadata only access info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
metadata only access |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
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 |
institution |
RCAAP |
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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1799136380220080128 |