Rocking of single-layer armour units measured by embedded sensors

Single layer randomly placed armour units are used in many rubble mound breakwaters around the world. For these armour layers first extraction of units starts at high loads and can then progress quickly. Before the first extraction of a unit, typically no quantitative description of damage can be given. But additional to extraction, breakage of...

Breakwater stability with damaged single layer armour units

The effect of single layer interlocking armour unit breakage on the hydraulic armour layer stability and potential damage progression is addressed in this paper. A 2-dimensional scale model of a rubble mound breakwater with an armour layer consisting of Xbloc armour units was tested. The residual armour layer stability with broken units was...

Havendammen van IJmuiden, modelonderzoek

De Bouwdienst van Rijkswaterstaat heeft WL Delft Hydraulics opdracht gegeven voor het uitvoeren van 2D fysisch modelonderzoek ten behoeve van een mogelijke renovatie van de havendammen van IJmuiden. Het betreft enerzijds modelonderzoek om meer inzicht te verkrijgen in mogelijk optredende schademechanismen bij de huidige constructie (Proevenserie...

Computer aided optimum design of rubble-mound breakwater cross-sections: Manual of the RUMBA computer package, release 1

The computation of the optimum rubble-mound breakwater crosssection is executed on a micro-computer. The RUMBA computer package consists of two main parts: the optimization process is executed by a Turbo Pascal programme, the second part consists of editing functions written in AutoLISP. AutoLISP is the programming language within AutoCAD. The...

A monograph on rubble mound breakwaters

Overview of failure mechanisms of rubble mound breakwaters of various types.