Skip to main content
Publications | Persons | Institutes | Projects
[ report an error in this record ]basket (0): add | show Print this page

Wave overtopping at rubble mound breakwaters: a new method to estimate roughness factor for rock armours under non-breaking waves
Pepi, Y.; Romano, A.; Franco, L. (2022). Wave overtopping at rubble mound breakwaters: a new method to estimate roughness factor for rock armours under non-breaking waves. Coast. Eng. 178: 104197. https://dx.doi.org/10.1016/j.coastaleng.2022.104197
In: Coastal Engineering: An International Journal for Coastal, Harbour and Offshore Engineers. Elsevier: Amsterdam; Lausanne; New York; Oxford; Shannon; Tokyo. ISSN 0378-3839; e-ISSN 1872-7379, more
Peer reviewed article  

Available in  Authors 

Keyword
    Marine/Coastal
Author keywords
    Rubble mound breakwaters; Wave overtopping; Roughness factor; Physical model tests

Authors  Top 
  • Pepi, Y., more
  • Romano, A.
  • Franco, L.

Abstract
    Wave overtopping is a relevant threat for rubble mound breakwaters which are designed to protect coastal areas or harbours. Currently, the wave overtopping assessment for such structures is mostly performed by using empirical formulae where hydraulic and geometric variables together with correction factors are included, such as the armour roughness. The predictive overtopping formulae for sloping structures are usually applied by assuming a constant value of this parameter based on the type of armour units, number of layers and type of core. In this paper we present a new methodology to estimate the roughness factor for rubble mound breakwaters as a function of both hydraulic and structural parameters. To this end, new physical model tests and previous results obtained from an existing database (i.e., CLASH) have been used. The new methodology to estimate the roughness factor, depending on a detailed complete geometrical representation, provides an improved prediction of the average overtopping discharge compared to the existing formulae.

All data in the Integrated Marine Information System (IMIS) is subject to the VLIZ privacy policy Top | Authors