EFFECT OF DIFFERENT FORCING PROCESSES ON THE LONGSHORE SEDIMENT TRANSPORT AT THE SAND MOTOR, THE NETHERLANDS

Proceedings of the International Conference on Coastal Engineering

Matthieu de Schipper²  Jaap van Thiel de Vries³  Arjen Luijendijk¹  Aline Kaji⁴  Marcel Stive² 

[1] Delft University of TechnologyDeltares;Delft University of Technology;Royal Boskalis Westminster N.V.Delft University of Technology;Witteveen+Bos

关键词: mega-nourishment;    sediment transport;    Sand Motor;   

DOI  :  10.9753/icce.v34.sediment.71

学科分类：建筑学

来源: Coastal Engineering Research Council

【 摘 要 】

The Sand Motor is a pilot project of a ‘mega-nourishment’ built in the Dutch coast in 2011. In order to understand which conditions reshape those mega-nourishments the influence of different types of forcing on the longshore sediment transport along the Sand Motor has been assessed in this paper using a process-based model. The use of numerical simulations enables the independent assessment of the different processes influencing the sediment transport magnitudes and direction. A calibrated depth-averaged model of the Sand Motor was used in order to compute the sediment transport rates around the nourishment. Results show that the overall evolution of the Sand Motor is event-driven, as the combination of energetic wave conditions, strong winds and high storm surge levels can lead to high sediment transport rates and therefore intense erosion.

【 授权许可】

Unknown