Performance of submerged nearshore sand-filled geosystems for coastal protection

• Tipo: Artigo em Revista Científica Internacional
• Data: 2015

Autores

L. das Neves (Autor) FEUP; A. Moreira (Autor) FEUP; F. Taveira Pinto (Autor) FEUP; M. L. Lopes (Autor) FEUP; F. Veloso Gomes (Autor) FEUP

Revista

Título: Coastal Engineering

Vol. 95

Páginas: 147-159

ISSN: 0378-3839

Editora: Elsevier

Indexação

ISI Web of Knowledge - 12 Citações

ISI Web of Science

Scopus - 14 Citações

Classificação Científica

FOS: Ciências da engenharia e tecnologias > Engenharia civil

CORDIS: Ciências Tecnológicas > Engenharia > Engenharia civil > Engenharia hidraúlica

Projetos Associados

ScourCoast - Avaliação dos níveis de segurança associados a erosões localizadas devidas a geossistemas utilizados para controlo da erosão costeira na costa portuguesa

Outras Informações

ID Authenticus: P-009-ZF2

DOI: 10.1016/j.coastaleng.2014.10.005

Abstract (EN): Nearshore submerged structures made of sand-filled geosystems are an interesting use for this type of coastal protection technology. These systems have an advantage over more traditional materials such as concrete units or rock, which is the limited and non-permanent impact on natural coastal processes. On top of that are also some important research achievements and improvements at the level of the materials. However, at more exposed hydraulic conditions under high wave energy its application is still hampered by the lack of knowledge about their performance. This paper describes research results based on a series of laboratory measurements of the hydrodynamic and morphodynamic change produced in the vicinity of submerged nearshore structures. An analysis of the different model outputs produced, with respect to sediment transport, wave reflection and wave-induced pressures, has been made and is discussed throughout the paper. Such a comparative analysis provides insights into the efficiency of each defence scheme in maintaining a beach and in protecting the shoreline. The sand-filled geosystems as nearshore submerged structures proved to be efficient in retarding the offshore movement of sediments and in maintaining the shoreline, even if instabilities due to elements' displacement and local scour have been observed.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 13