Peak dynamic pressure on semi- and quarter-circular breakwaters under wave troughs

Xue Lian Jiang, Qingping Zou*, Jining Song

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)
99 Downloads (Pure)


A series of physical tests are conducted to examine the characteristics of the wave loading exerted on circular-front breakwaters by regular waves. It is found that the wave trough instead of wave crest plays a major role in the failure of submerged circular caissons due to seaward sliding. The difference in the behavior of seaward and shoreward horizontal wave forces is explained based on the variations of dynamic pressure with wave parameters. A wave load model is proposed based on a modified first-order solution for the dynamic pressure on submerged circular-front caissons under a wave trough. This wave loading model is very useful for engineering design. Further studies are needed to include model uncertainties in the reliability assessment of the breakwater.

Original languageEnglish
Pages (from-to)151-159
Number of pages9
JournalChina Ocean Engineering
Issue number2
Early online date23 Apr 2017
Publication statusPublished - Apr 2017


  • quarter-circular breakwater
  • seaward wave force
  • semicircular breakwater
  • shoreward wave force
  • wave trough load

ASJC Scopus subject areas

  • Oceanography
  • Renewable Energy, Sustainability and the Environment
  • Ocean Engineering
  • Mechanical Engineering


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