Reference : Vertical Caisson Breakwaters Cyclically Loaded
Scientific congresses, symposiums and conference proceedings : Paper published in a book
Engineering, computing & technology : Civil engineering
Vertical Caisson Breakwaters Cyclically Loaded
Maccarini, F []
De Groot, M []
Van Baars, Stefan mailto [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit >]
11th Baltic Sea Geotechnical Conference on Geotechnics in Maritime Engineering
Proc. 11th Baltic Sea Geotechnical Conf., Gdansk, Sept. 2008; Gdansk Univ. Technol./Pol. Comm. Geotech., 2008, Vol.1, pp. 527-534
11th Baltic Sea Geotechnical Conference on Geotechnics in Maritime Engineering
September 2008
[en] Aim of this paper is analysing the breakwater foundation behaviour observed during centrifuge tests performed at the laboratory of GeoDelft (The Netherlands). Dynamic centrifuge tests were performed on a model caisson breakwater, founded on medium-dense sand. The structure was subjected to cyclic horizontal loading simulating regular and irregular wave loading, until failure occurred. The tests were aimed at finding a critical failure mechanism, investigating the influence of the loading scheme and analysing the development of instantaneous pore pressures and residual pore pressures in the sandy subsoil. Test results showed high instantaneous values of excess pore pressures underneath the structure, not leading to a complete “liquefaction flow” failure. Dilation phenomena of sand induced local “recovering” of strength during each cycle and failure occurred according to a progressive mechanism with large cyclic strains.

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