Rocking revisited 4: Analysis of rocking-induced stresses for concrete breakwater armour units

When a breakwater is under heavy wave attack, the concrete armour units will occasionally move, causing a collision between two concrete armour units. This process is called rocking, and induces stresses in the concrete, that may lead to breakage of the concrete armour units. This MSc Thesis provides a probabilistic method to predict breakage of...

Effect of irregularities in the under layer on the stability of Xbloc^Plus concrete armour unit

The Xbloc^Plus is a new type of single layer armour unit for breakwaters. The key difference between earlier single layer armour units is that the unit is not only placed in a regular grid, but also with a regular orientation. The main benefit of this is that it can directly be seen whether the unit is placed correctly. Additionally,...

Exploration into the mechanisms that govern the stability of an Xbloc^{+ v1} armour unit

In this MSc thesis it is investigated how the first version of concrete armour unit Xbloc⁺, Xbloc^{+ v1}, acquires its stability. The stability mechanisms are investigated by conducting two type of physical model tests. First, 23 dry pull-out tests are done to obtain insights into the aspects and mechanisms that influence the...