Wave Run-Up on a Rubble Mound Breakwater: prototype measurements versus scale model tests

J. De Rouck, P. Troch, B. Van de Walle, J. van der Meer, L. Van Damme, J. R. Medina, M. Willems, Peter Frigaard, Jens Peter Kofoed

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Abstract

Physical processes such as wave run-up and wave overtopping are very important with regard to the design of sloping coastal structures. However, these are not yet fully understood. Preliminary prototype measuring campaigns (1993-1996) indicated clearly higher wave run-up values than the values found by laboratory testing and reported in literature. The design of the crest height of a breakwater is mainly based on wave run-up values obtained by small scale model tests. Prototype measurements are seen as the big challenge to be addressed to verify small scale model test results. Therefore, a rubble mound breakwater protecting the outer harbour of Zeebrugge (Belgium) and armoured with 25 ton grooved cubes is fully instrumented to measure sea state, wave run-up and wave overtopping. Wave run-up is measured by two different measuring devices. Extensive laboratory testing is carried out on two t-o dimensional models (1:30) and on one thr-e dimensional scale model (1:40). For a better determination of wave run-up on the scale models, a novel step gauge is developed. Still, differences between results of prototype measurement and small scale model test results and between the various laboratory results are noticed.
Original languageEnglish
Title of host publicationProceedings of the 5th Int. Conf. on the Mediteranean Coastal Environment : Oct. 2001, MEDCOAST-01, Hammamet, Tunisia
EditorsErdal Özhan
Number of pages14
Volume3
PublisherNational Institute for Marine Science and Technology Coastal Management and Protection Agency
Publication date2001
Publication statusPublished - 2001
EventThe 5th International Conference on the Mediteranean Coastal Environment : MEDCOAST-01 - Hammamet, Tunisia
Duration: 23 Oct 200127 Oct 2001

Conference

ConferenceThe 5th International Conference on the Mediteranean Coastal Environment : MEDCOAST-01
Country/TerritoryTunisia
CityHammamet
Period23/10/200127/10/2001

Bibliographical note

PDF for print: 14 pp.

Keywords

  • Waves
  • Wave Run-Ups
  • Breakwaters
  • Rubble Mound Breakwaters
  • Zeebrugge Breakwater
  • Prototype Measurements
  • Scale Model Tests
  • 2D Scale Models
  • 3D Scale Models
  • Simulated Tests
  • Parametric Tests
  • Spiderweb System
  • Run-Up Gauge

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