Designing a Preliminary Multifunctional Artificial Reef to Protect the Portuguese Coast
Autor(a) principal: | |
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Data de Publicação: | 2009 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://repositorio.lnec.pt:8080/jspui/handle/123456789/17324 |
Resumo: | coastline appear to entail some disadvantages. An innovative and interesting way of protecting a local coastal zone by means of multifunctional artificial reefs avoids some of them. A multifunctional artificial reef is a submerged breakwater which, besides helping to protect the local coastline, can have other purposes; in particular it may enhance the surfing possibilities and the environmental value of the local area. The structure has several positive side effects: first, it provides an unimpaired visual amenity; second, it offers tourist and economic benefits by improving the surfing conditions. A preliminary design, achieved step-by-step, is proposed for a multifunctional artificial reef making use of the theory and state of the art multifunctional artificial reef design, a preliminary design, achieved step-by-step, a priliminary design is proposed. The proposed reef geometry, together with numerical and physical tests, allows the analysis of a multifunctional reef breakwater designed to protect a stretch of the northwestern coast of Portugal. Taking into account the condition that the proposed geometry will only function properly on a sea slope bottom of less than 1 : 50, the main choices are as follows: the upper part of the structure is delta shaped with an angle of 66 and a side slope of 1 : 10, and the lower part consists of a platform whose slopes are as steep as possible. The position of the reef should be such that the distance from the apex of the structure to the undisturbed shoreline is greater than 1.5 times the natural surf zone width. |
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Designing a Preliminary Multifunctional Artificial Reef to Protect the Portuguese CoastMultifunctional artificial reefsSurfabilityCoastal protectionGeotextile sand containerscoastline appear to entail some disadvantages. An innovative and interesting way of protecting a local coastal zone by means of multifunctional artificial reefs avoids some of them. A multifunctional artificial reef is a submerged breakwater which, besides helping to protect the local coastline, can have other purposes; in particular it may enhance the surfing possibilities and the environmental value of the local area. The structure has several positive side effects: first, it provides an unimpaired visual amenity; second, it offers tourist and economic benefits by improving the surfing conditions. A preliminary design, achieved step-by-step, is proposed for a multifunctional artificial reef making use of the theory and state of the art multifunctional artificial reef design, a preliminary design, achieved step-by-step, a priliminary design is proposed. The proposed reef geometry, together with numerical and physical tests, allows the analysis of a multifunctional reef breakwater designed to protect a stretch of the northwestern coast of Portugal. Taking into account the condition that the proposed geometry will only function properly on a sea slope bottom of less than 1 : 50, the main choices are as follows: the upper part of the structure is delta shaped with an angle of 66 and a side slope of 1 : 10, and the lower part consists of a platform whose slopes are as steep as possible. The position of the reef should be such that the distance from the apex of the structure to the undisturbed shoreline is greater than 1.5 times the natural surf zone width.2009-11-20T13:13:52Z2010-04-26T10:12:36Z2014-10-20T13:37:54Z2017-04-12T16:08:25Z2009-01-01T00:00:00Z2009info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://repositorio.lnec.pt:8080/jspui/handle/123456789/17324porVoorde, M.Antunes do Carmo, J.Neves, M. G.info: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:RCAAP2024-01-13T03:02:54Zoai:localhost:123456789/17324Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T01:38:45.458235Repositório 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 |
Designing a Preliminary Multifunctional Artificial Reef to Protect the Portuguese Coast |
title |
Designing a Preliminary Multifunctional Artificial Reef to Protect the Portuguese Coast |
spellingShingle |
Designing a Preliminary Multifunctional Artificial Reef to Protect the Portuguese Coast Voorde, M. Multifunctional artificial reefs Surfability Coastal protection Geotextile sand containers |
title_short |
Designing a Preliminary Multifunctional Artificial Reef to Protect the Portuguese Coast |
title_full |
Designing a Preliminary Multifunctional Artificial Reef to Protect the Portuguese Coast |
title_fullStr |
Designing a Preliminary Multifunctional Artificial Reef to Protect the Portuguese Coast |
title_full_unstemmed |
Designing a Preliminary Multifunctional Artificial Reef to Protect the Portuguese Coast |
title_sort |
Designing a Preliminary Multifunctional Artificial Reef to Protect the Portuguese Coast |
author |
Voorde, M. |
author_facet |
Voorde, M. Antunes do Carmo, J. Neves, M. G. |
author_role |
author |
author2 |
Antunes do Carmo, J. Neves, M. G. |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Voorde, M. Antunes do Carmo, J. Neves, M. G. |
dc.subject.por.fl_str_mv |
Multifunctional artificial reefs Surfability Coastal protection Geotextile sand containers |
topic |
Multifunctional artificial reefs Surfability Coastal protection Geotextile sand containers |
description |
coastline appear to entail some disadvantages. An innovative and interesting way of protecting a local coastal zone by means of multifunctional artificial reefs avoids some of them. A multifunctional artificial reef is a submerged breakwater which, besides helping to protect the local coastline, can have other purposes; in particular it may enhance the surfing possibilities and the environmental value of the local area. The structure has several positive side effects: first, it provides an unimpaired visual amenity; second, it offers tourist and economic benefits by improving the surfing conditions. A preliminary design, achieved step-by-step, is proposed for a multifunctional artificial reef making use of the theory and state of the art multifunctional artificial reef design, a preliminary design, achieved step-by-step, a priliminary design is proposed. The proposed reef geometry, together with numerical and physical tests, allows the analysis of a multifunctional reef breakwater designed to protect a stretch of the northwestern coast of Portugal. Taking into account the condition that the proposed geometry will only function properly on a sea slope bottom of less than 1 : 50, the main choices are as follows: the upper part of the structure is delta shaped with an angle of 66 and a side slope of 1 : 10, and the lower part consists of a platform whose slopes are as steep as possible. The position of the reef should be such that the distance from the apex of the structure to the undisturbed shoreline is greater than 1.5 times the natural surf zone width. |
publishDate |
2009 |
dc.date.none.fl_str_mv |
2009-11-20T13:13:52Z 2009-01-01T00:00:00Z 2009 2010-04-26T10:12:36Z 2014-10-20T13:37:54Z 2017-04-12T16:08:25Z |
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://repositorio.lnec.pt:8080/jspui/handle/123456789/17324 |
url |
http://repositorio.lnec.pt:8080/jspui/handle/123456789/17324 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
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 |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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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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