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Open AccessArticle

A Rational Method for the Design of Sand Dike/Dune Systems at Sheltered Sites; Wadden Sea Coast of Texel, The Netherlands

1
WaterProof BV, 8221RC Lelystad, The Netherlands
2
LVRS-Consultancy, 8356DS Blokzijl, The Netherlands
3
Jan de Nul N.V., Tragel 60, 9308 Hofstade-Aalst, Belgium
*
Author to whom correspondence should be addressed.
J. Mar. Sci. Eng. 2019, 7(9), 324; https://doi.org/10.3390/jmse7090324
Received: 13 August 2019 / Revised: 5 September 2019 / Accepted: 8 September 2019 / Published: 18 September 2019
A rational method for the design of sand dike/dune systems at sheltered sites is presented, focussing on the cross-shore dimensions of the sand dike in relation to the local wave climate, tidal regime and available sandy materials. The example case is the new sand dike/dune system along the south-east coast of Texel, The Netherlands. The old dike protecting the island was not sufficiently strong to withstand an extreme storm event and has been strengthened by a new sand dune/dike. Various empirical and numerical models have been used, compared and validated to determine the erosion volumes during annual conditions and extreme storm events. Potential wind-induced (aeolian) sediment transport and erosion is also studied using the modified Bagnold-equation including the effects of grain size, moisture content and vegetation. The overall design method resulted into an innovative design solution, guarantying a naturally integrated and resilient sand protection as well as optimal coastal safety. View Full-Text
Keywords: innovative design method for sand dikes/dunes; sandy reinforcement coastal defense at sheltered sites; coastal dune at sheltered site; building with nature innovative design method for sand dikes/dunes; sandy reinforcement coastal defense at sheltered sites; coastal dune at sheltered site; building with nature
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MDPI and ACS Style

Perk, L.; van Rijn, L.; Koudstaal, K.; Fordeyn, J. A Rational Method for the Design of Sand Dike/Dune Systems at Sheltered Sites; Wadden Sea Coast of Texel, The Netherlands. J. Mar. Sci. Eng. 2019, 7, 324.

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