Stability of breakwater roundhead protected with a Cubipod single-layer armor

This paper presents an analysis of the stability of breakwater roundheads protected with a Cubipod single-layer armor. This model was then subjected to a battery of 22 physical model tests, and the most significant variables were observed to be wave steepness (spr), the radius divided by the nominal...

Full description

Saved in:
Bibliographic Details
Published in:Applied ocean research 2018-10, Vol.79, p.36-48
Main Authors: Sande, José, Peña, Enrique, Maciñeira, Enrique
Format: Article
Language:English
Subjects:
Breakwaters
Cubipod
Design
Ocean waves
Oceanography
Physical model
Roundhead stability
Single-layer
Stability
Stability coefficient
Wave slope
Wave steepness
Wavelength
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This paper presents an analysis of the stability of breakwater roundheads protected with a Cubipod single-layer armor. This model was then subjected to a battery of 22 physical model tests, and the most significant variables were observed to be wave steepness (spr), the radius divided by the nominal diameter (Rn), and the relationship between the radius and wavelength at the breakwater toe (R/Lrp). It has been demonstrated that there are two behavioral patterns for stability according to the parameter R/Lrp, with large roundheads defined as R/Lrp ≥ 0.15 and small roundheads as R/Lrp < 0.15. The stability reserve (SR [%]) was also calculated and it was demonstrated that this parameter decreased with an increase in steepness. A design criterion was also defined based on the stability reserve (SR [%]) of these kinds of structures. The stability coefficient (Kd) was calculated to account for initial damage, destruction, and the design stage, and it was verified that this parameter depends primarily on wave steepness, to which it is directly proportional. Finally, a comparison with double-layer armors was made confirming that under certain conditions, the single-layer ones have the same stability as the ones with double layer armors, but their behavior is more rigid.
ISSN:0141-1187
1879-1549
DOI:10.1016/j.apor.2018.07.006