OSCILLATORY MOTIONS AND PERMANENT DISPLACEMENTS OF CAISSON BREAKWATERS SUBJECT TO IMPULSIVE BREAKING WAVE LOADS

P. Klammer, H. Oumeraci, H.W. Partenscky

Abstract


Small-scale model tests were recently conducted in a wave flume at the University of Hannover in order to study in more detail the relationship between impulsive loading induced by waves breaking on a caisson breakwater and subsequent displacements of the latter. These experiments are briefly described and some first results are discussed. Thereby, particular emphasis is put on the relationships between (i) oscillatory motions and permanent displacements, (ii) wave loading and oscillatory motions and (iii) wave loading and permanent displacements. The findings presented in this paper are intended to improve the understanding of the stability of caisson breakwaters subject to impulsive breaking wave loads and to help developing proper tools for the dynamic analysis of such structures.

Keywords


breaking wave; caisson breakwater; breakwater; breakwater displacement

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