STABILITY OF RUBBLE MOUND STRUCTURES UNDER OBLIQUE WAVE ATTACK
Meysam Bali (Pouya Tarh Pars Consulting Company)
Amir Etemad-Shahidi (Griffith University)
Marcel R. A. Gent (TU Delft - Coastal Engineering, Deltares)
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Abstract
Stability formulae for armour layers of rubble mound breakwaters are generally developed for perpendicular wave attack and do not include effects of oblique waves. Waves usually attack breakwater obliquely as the sea wave is three dimensional. Several studies have been performed to investigate the effect of wave angle (beta) on the armor stability. Galland (1994), Yu et al. (2002), Wolters and Van Gent (2010) and van Gent (2014) performed laboratory experiments to consider effects of oblique waves on the stability of armour layers. They performed tests with long-crested and/or short-crested waves on rock and concrete armours. The aim of this study is to find an appropriate and compatible reduction factor for EBV stability formulae.
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