Wave overtopping and scale effects

Wave overtopping and scale effects: Experimental case study New Afsluitdijk

Huppes, Niek (TU Delft Civil Engineering and Geosciences)

Aarninkhof, Stefan (mentor)
Hofland, Bas (graduation committee)
Kuiper, Coen (graduation committee)
Reedijk, Bas (graduation committee)
van de Koppel, Michael (graduation committee)

Delft University of Technology

Civil Engineering | Hydraulic Engineering

Afsluitdijk

2019-01-30

After more than 85 years, the iconic Afsluitdijk is in need of a reinforcement. During the latest safety assessment of Rijkswaterstaat the dike did not meet the standards at two components; the amount of wave overtopping (>10 l/m/s) and armour stability. This research goes into detail about the overtopping on the Afsluitdijk. In the new design a lot a of different factors influence the amount of wave overtopping: the roughness of several elements and a berm. The combination of these different factors makes it difficult to make a reliable estimation of the amount of wave overtopping. In the design new materials are used of which the effect on wave overtopping is unknown. The band width of the design is very narrow so an accurate prediction of the amount of overtopping in the prototype is necessary. Physical model tests of two different dike section are used in this research. These dike sections are tested on different scales (small to large) to validate the final design on prototype scale. Not much is known about the possible scale effects on wave overtopping so this research goes into more detail on this issue.

Roughness factor
Roughness coefficient
wave overtopping
overtopping
scale effects
composite slope
Levvel-blocs
Xbloc+
Afsluitdijk
New Afsluitdijk
Physical model tests
Experimental
Block revetment
Flume
physical modelling

http://resolver.tudelft.nl/uuid:576016e0-a7f6-413e-a41d-65156cf91104

2021-01-30

53.031189, 5.226290

Student theses

master thesis

© 2019 Niek Huppes