Coastal Structures and Solutions to Coastal Disasters Joint Conference 2015
Validation of the Cumulative Overload Method Based on Tests by a New Wave Run-Up Simulator
Publication: Coastal Structures and Solutions to Coastal Disasters 2015: Resilient Coastal Communities
ABSTRACT
A new wave run-up simulator has been designed, constructed, calibrated and used for testing of the seaward face of dikes. The upper part of dikes or levees often have a clay layer with a grass cover. The new device is able to test the strength of the grass cover under simulation of up-rushing waves for pre-defined storm conditions. The cumulative overload method has been developed to describe the strength of grass covers on the crest and landward side of dikes, for overtopping wave volumes. In essence there is not a lot of difference between the hydraulic load from an overtopping wave volume or from an up-rushing wave. Therefore the hypothesis has been evaluated that the cumulative overload method should also be applicable for up-rushing waves. Tests on a real dike have been used to validate this hypothesis. The main conclusions are that the new wave overtopping simulator works really well, but that the results on testing till so far has not yet been sufficient for a full validation of the method. More research is required.
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ACKNOWLEDGEMENT
The research was carried out as part of the research program “Research and Development of Flood Defence Assessment Tools (WTI2017)”, funded by the Dutch Government and carried out by Rijkswaterstaat Water Verkeer en Leefomgeving and Deltares together with Van Der Meer Consulting, Infram and Alterra.
REFERENCES
G.J. Steendam, J.W. van der Meer and A. van Hoven (2014). “Wave Overtopping Simulator tests on transitions and obstacles at grass covered slopes of dikes”. ASCE, Proc. ICCE 2014, Seoul, South Korea.
Steendam, G.J., Y. Provoost and J.W. van der Meer (2012). “Destructive wave overtopping and wave run-up tests on grass covered slopes of real dikes”. ASCE, Proc. ICCE 2012, Santander, Spain.
Steendam G.J., P. Peeters, J.W. van der Meer, K. van Doorslaer and K. Trouw (2011). “Destructive wave overtopping tests at Flemish dikes.” Proc. Coastal Structures 2011, Yokohama, Japan
Van der Meer, J.W., Y. Provoost and G.J. Steendam (2012). “The wave run-up simulator, theory and first pilot test”. ASCE, Proc. ICCE 2012, Santander, Spain.
Van der Meer, J.W., B. Hardeman, G.J. Steendam, H. Schüttrumpf and H. Verheij (2010). “Flow depths and velocities at crest and inner slope of a dike, in theory and with the Wave Overtopping Simulator”. ASCE, Proc. ICCE 2010, Shanghai.
Van der Meer J.W., G.J. Steendam G. de Raat and P. Bernadini (2008). “Further developments on the wave overtopping simulator”. ASCE. Proc. ICCE 2008, Hamburg, Germany.
Information & Authors
Information
Published In
Coastal Structures and Solutions to Coastal Disasters 2015: Resilient Coastal Communities
Pages: 731 - 742
Editors: Louise Wallendorf, U.S. Naval Academy and Daniel T. Cox, Ph.D., Oregon State University
ISBN (Online): 978-0-7844-8030-4
Copyright
© 2017 American Society of Civil Engineers.
History
Published online: Jul 11, 2017
Published in print: Jul 11, 2017
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