Deformation of Breakwater Roundheads under Construction

Breakwaters under construction are prone to undesired deformation because the breakwater core is not designed to withstand severe or moderate wave loads. The reshaping mechanisms for a complete (finished) breakwater have been comprehensively studied; however, few research studies have been undertaken to analyze the deformation mechanisms of the...

A generic quantitative damage description for rubble mound structures: Investigation of damage to roundheads by using a 3D high-resolution measurement technique in a physical model

Breakwaters are used for reducing wave height in harbours or divert sediment. One of the types of breakwaters is the rubble mound breakwater. These structures are constructed with smaller quarry rock as core and larger quarry rock as outer layer. For economical reasons, the design allows some damage to the armour layer. The amount of damage is...

Note on roundhead stability analysis

Note on the roundhead stability of berm breakwaters. Recession, erosion and longshore transport are measured

Berm breakwater structures: Parametric study of reshaped profile under head-on and oblique waves

In order to describe the reshaping breakwater profile, the profile has to be schematized into profile parameters. Static stability is describe by damage and reshaping breakwaters by the profile. The profile can be schematized by profile parameters such as height and length parameters. Burcharth, and Frigaard (1988) made the first systematic...

Berm breakwater structures: Roundhead stability of berm breakwaters

For berm breakwaters as compared with traditional rubble mound breakwaters, special measures have to be taken for the breakwater roundhead. If stone displacements occur on a roundhead, the stones will be moved in the wave direction and will loose most of their stabilising effect. The major part of the research on berm breakwaters has...

Berm breakwaters: Hydraulic response of roundheads and trunks exposed to oblique waves

As a part of the MAST II Berm Breakwater Structures, existing data from conducted laboratory tests have been reanalised. The objective was to evaluate the effect of the longshore transpsort on both the roundhead and trunk, the ht.u,er exposed to both head-on waves and oblique inegular waves varying from 15 to 30 degrees angle of incidence. 3...

On the stability of berm breakwaters roundheads and trunk erosion of oblique waves

The stability of a berm type breakwater (sacrificial breakwater) was tested in a 3-dimensional model at rhe Hydraulics Laboratory, Department of civil Engineering, university of Aalborg. The object was to study the stability/erosion of the breakwater head and the trunk, the latter exposed to both head-on and oblique irregular waves. To avoid too...