Laboratory investigation on armour stability for extremely shallow water conditions

Stefano Marino, Giulio Scaravaglione, Antonio Francone, Nico Valentini, Alessandra Saponieri, Leonardo Damiani, Marcel R.A. van Gent, Giuseppe Roberto Tomasicchio

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

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Abstract

The hydraulic stability of the armour layer of rubble mound breakwaters has been widely discussed in literature and several empirical formulas have been proposed for design purposes. Nevertheless, few studies focused on the armour stability in case of water depth limited water conditions. The aim of the present research is to provide more insights into the stability of the armour layer including extremely shallow water conditions. New 2D physical experiments have been carried out at the EUropean Maritime and Environmental Research (EUMER) laboratory of the University of Salento (Lecce), in presence of a 1:30 foreshore. Tests aimed to investigate both the nearshore hydrodynamics and the hydraulic armour stability under different irregular wave loading. In the present paper the experimental set-up is described together with the main preliminary results. Specifically, the measured damage S after each test in different shallowness conditions is reported and discussed. Experimental results are also compared with the damage evaluated from the empirical formula proposed by Van Gent et al. (2003), in order to investigate the predicted damage level in the shallowness range analysed.

Original languageEnglish
Title of host publicationProceedings of the 39th IAHR World Congress (Granada, 2022)
EditorsMiguel Ortega-Sánchez
Pages5973-5979
Number of pages7
DOIs
Publication statusPublished - 2022
Event39th IAHR World Congress, 2022 - Granada, Spain
Duration: 19 Jun 202224 Jun 2022

Publication series

NameProceedings of the IAHR World Congress
PublisherIAHR
ISSN (Print)2521-7119
ISSN (Electronic)2521-716X

Conference

Conference39th IAHR World Congress, 2022
Country/TerritorySpain
CityGranada
Period19/06/2224/06/22

Bibliographical note

Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care
Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

Keywords

  • Hydraulic stability
  • Rock armour
  • Rubble mound breakwater
  • Shallow waters
  • Wave-structure interaction

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