|Waves overtopping a wide-crested dike|
Verwaest, T.; Vanpoucke, Ph.; Willems, M.; De Mulder, T. (2011). Waves overtopping a wide-crested dike, in: (2010). The 32nd International Conference on Coastal Engineering (ICCE 2010), June 30 - July 5, 2010, Shanghai, China: book of papers. pp. [1-9]
In: (2010). The 32nd International Conference on Coastal Engineering (ICCE 2010), June 30 - July 5, 2010, Shanghai, China: book of papers. [S.n.]: [s.l.]. , more
Dikes; Wave overtopping; Marine
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.