Tentative engineering approach to scour around breakwaters in random waves

Dag Myrhaug*, Haavard Rue, Alf Toørum

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

15 Scopus citations

Abstract

An approach by which the scour depth and protection layer width around the head of vertical-wall breakwaters, the scour and deposition depths as well as the protection layer widths at the round head of rubble-mound breakwaters in random waves can be derived is presented. Here the formulas for scour depth by Sumer and Fredsøe (1997) for vertical-wall breakwaters for regular waves and Fredsøe and Sumer (1997) for rubble-mound breakwaters for irregular waves are used. They are combined with describing the waves as a stationary Gaussian narrow-band random process to derive the scour and deposition depths as well as protection layer widths in random waves. Comparisons are made between the present approach and the Fredsøe and Sumer (1997) random wave scour data for rubble-mound breakwaters.

Original languageEnglish (US)
Pages (from-to)1051-1065
Number of pages15
JournalCoastal Engineering
Volume51
Issue number10
DOIs
StatePublished - Nov 1 2004

Keywords

  • Protection layer width
  • Random waves
  • Scour and deposition depths
  • Shear stress
  • Stochastic approach
  • Vertical-wall and rubble-mound breakwaters

ASJC Scopus subject areas

  • Environmental Engineering
  • Ocean Engineering

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