Crownwalls with a fully curved face: An experimental study

This work studies crownwalls with a fully curved face versus a vertical wall in non-breaking wave conditions. Its aim is to provide appropriate tools that can be used to compare the performance of the two structures in terms of loading and overtopping. To this end, small scaled experiments of the two structures are carried in a flume with a flat...

Stability of Single Layer Cubes on Breakwater Rear Slopes

Breakwaters with single layer concrete armour are very commonly applied nowadays. Much research is available on the stability of single layer armour units on the seaward slope. However, rear slopes design methods for single layer armour units are rare. On rear side slopes usually similar sized units as on the seaward slope are applied. Limited...

Physical model tests on new armour block Crablock for breakwaters to come to preliminary design guidance

In the design of rubble mound breakwaters, nowadays single layer systems using concrete armour units have become more common practice compared to conventional two layer systems. However, after the introduction of the accropode in eighties, a small number of single layer armour units have been developed over the years; for example core-loc, A...

Influence of very oblique waves on wave overtopping

The main goal of this study is to determine the relation between very oblique wave attack and overtopping, and to accordingly adjust the formulae for oblique wave attack. The required knowledge to be able to read and understand this report is of a Bachelor in civil engineering level. All around the world different types of structures are built...

Influence of very oblique waves on wave overtopping

The main goal of this study is to determe the relation between very oblique wave attack and overtopping, and to accordingly adjust the formulae for oblique wave attack. The required knowledge to be able to read and understand this report is of a Bachelor in civil engineering level. All around the world different types of structures are built to...

Spatial distribution of overtopping

The scope of this research is to find an empirical formula to describe the distribution of wave overtopping in the region behind the crest. A physical model was set up in which irregular waves were generated. In order to find a formula which adequately describes the test observations, the influence of several parameters has been analysed. The...

A comparison of overtopping behaviour over a permeable and impermeable crest: An insight into overtopping discharges and intensities

The purpose of this report is to investigate the differences in overtopping characteristics over the crest of a rubble mound breakwater when the crest is made either impermeable or permeable. Among numerous characteristics that are effected by a modification in the permeability of the crest, this report looks specifically into three separate...

Hydraulic Response of Rubble Mound Breakwaters: Scale Effects - Berm Breakwaters

An introduction to the principles and fundamentals of designing rubble mound breakwaters, led to the definition of two important white spots in designing rubble mound breakwaters. These were selected for further investigations in the present thesis. 1. Design of berm breakwaters: A generally lack of data and design formulae was identifed, but...

De golfbelasting op kruinmuren boven op stortstenen golfbrekers

Dit verslag geeft een beschrijving van een onderzoek naar de golfbelasting van kruinmuren boven op breukstenen golfbrekers. Een kruinmuur is een betonnen element dat boven op een golfbreker geplaatst wordt. De voornaamste functie is het terugbrengen van de overslag zonder toepassing van zeer veel stortsteen en toplaagelementen. In dit onderzoek...

Recent Italian Experience in the Design and Construction of Vertical Breakwaters

Italy is often considered as a mother country of vertical breakwaters for harbour protection, since they have been widely used all along our coasts long since. An updated location map is given in fig. 1, which also shows the position of the directional wave recording stations of the existing Italian network. The most common vertical breakwaters...