Uplift Wave Forces Due to Compression of Enclosed Air Layer and Their Similitude Law

Abstract

ABSTRACTABSTRACTUplift forces on the ceiling slab of a wave dissipating caisson are a typical example of the impact wave force due to compression of an entrapped air layer. A theoretical model is introduced in order to describe the mechanism of the impact force and the similitude law of the impact force is proposed. A calculation method of the uplift force is also presented. The theoretical model and the similitude law as well as the calculation method are well confirmed by model experiments and field observations.