Numerical test for single concrete armour layer on breakwaters
File(s)ICE Proceedings jmaen%2E2014%2E25.pdf (1.04 MB)
Published version
Author(s)
Anastasaki, E
Latham, J-P
Xiang, J
Type
Journal Article
Abstract
The ability of concrete armour units for breakwaters to interlock and form an integral single layer is important for withstanding severe wave conditions. In reality, displacements take place under wave loading, whether they are small and insignificant or large and representing serious structural damage. In this work, a code that combines finite- and discrete-element methods which can simulate motion and interaction among units was used to conduct a numerical investigation. Various concrete armour layer structures were built using a carefully researched placement technique and then subjected to a boundary vibration. By analysing the displacements and assessing the number of units that were displaced by more than one-third their nominal size, the numerical test programme indicated clearly that the initial build packing density was the most important parameter influencing the stability of concrete armour layers under vibration. The size of the underlayer rock and the type of unit also affected the numerical performance of the single-layer concrete armour systems under vibration. The results presented are for full-scale systems and therefore add further insights into simple laboratory ‘shake tests’, although the oscillatory loading in this study is acknowledged to be profoundly different to wave action.
Date Issued
2016-11-10
Online Publication Date
2017-11-10T07:00:16Z
Date Acceptance
2016-10-17
ISSN
1741-7597
Publisher
ICE Publishing
Start Page
174
End Page
187
Journal / Book Title
Proceedings of the Institution of Civil Engineers - Maritime Engineering
Volume
169
Issue
4
Copyright Statement
© 2016 ICE Publishing, all rights reserved. Original article available at: https://dx.doi.org/10.1680/jmaen.2014.25. Permission is granted by ICE Publishing to print one copy for personal use. Any other use of these PDF files is subject to reprint fees
Source Database
crossref
Sponsor
Engineering & Physical Science Research Council (EPSRC)
W.F. Baird & Associates Coastal Engineers Ltd
Concrete Layer Innovations
Artelia Eau Environnment
Engineering & Physical Science Research Council (EPSRC)
Engineering & Physical Science Research Council (E
Grant Number
GR/S42699/01
N/A
CLI/AKA/587
N/A
EP/H030123/1
EP/K503733/1
Subjects
Environmental Engineering
0911 Maritime Engineering
0905 Civil Engineering
Publication Status
Published