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Waves overtopping a wide-crested dike
Verwaest, T.; Vanpoucke, Ph.; Willems, M.; De Mulder, T. (2011). Waves overtopping a wide-crested dike, in: The 32nd International Conference on Coastal Engineering (ICCE 2010), June 30 - July 5, 2010, Shanghai, China: book of abstracts. pp. Paper No. 191
In: (2011). The 32nd International Conference on Coastal Engineering (ICCE 2010), June 30 - July 5, 2010, Shanghai, China: book of abstracts. ICCE 2010 Local Organizing Committee: [s.l.]. different pagination pp., more

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Document type: Conference paper

Keywords
    Dikes; Overtopping; Marine

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Abstract
    If a coastal dike has a crest width of more than say a few meters, then wave overtopping will be significantly reduced due to the crest width, because kinetic energy can be dissipated on the crest and water on the crest can flow back towards the seaside. In coastal towns built on dune belts often a wide-crested coastal dike was constructed as both coastal protection and sea promenade. However, quantifying the effect of such a wide crest on wave overtopping is not straightforward because no empirical overtopping formulas are given in literature for this kind of configuration. Therefore physical scale model research was carried out. Also a simplified theoretical model concept was used based on an energy balance formulation of a single overtopping wave. Combining the scale model measurements with the theoretical model, a semi-empirical formula was developed and calibrated.

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