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Experimental research on the pore pressure attenuation in a rubble mound breakwater
Vanneste, D.; Troch, P. (2009). Experimental research on the pore pressure attenuation in a rubble mound breakwater, in: 4th SCACR International Short Conference on applied coastal research: abstracts. pp. 299-309
In: (2009). 4th SCACR International Short Conference on applied coastal research: abstracts. Nuova Editoriale Bios: Barcelona. ISBN 9788860930699. , meer
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Documenttype: Congresbijdrage
Author keywords
    rubble-mound breakwater; wave attenuation; pore pressures; physical modelling
Auteurs  Top 
  • Vanneste, D., meer
  • Troch, P.
Abstract
    The paper describes the pore pressure measurements in a small scale breakwater model performed at Ghent University, Belgium. Two phenomena related to the pore pressure distribution within the breakwater are discussed: the amount of energy dissipation through the armour and filter layer (represented by the ‘reference pressure’) and the exponential pore pressure attenuation inside the core of the breakwater. The test results are compared with results from literature and with the empirical damping model presented by Burcharth et al. (1999) and Troch (2000). Magnitudes of the reference pressures are found to be strongly dependent on the wave steepness. The pore pressure attenuation obtained from the present experiments shows to be in accordance with the empirical damping model. A suggestion is made for a better prediction of the damping coefficient by eliminating the influence of the wave height in the empirical damping model.
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