Soft cliff recession under oblique waves: physical model tests

J. S. Damgaard, Ping Dong

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    16 Citations (Scopus)


    Laboratory experiments have been performed to investigate the recession of soft cliffs due to oblique wave actions. The experiments were conducted in a wave tank with irregular waves. A test cliff was constructed of wet sand and (in one test) a sand/clay mixture, which was found to be appropriate for simulating the principal failure mode of soft cliffs fronted by erodeable beaches. The recession process is characterized by the following sequence: toe erosion—cliff failure—erosion of debris—toe erosion. The recession of the cliff top was measured from still photographs taken by an overhead camera. The longshore and cross-shore extents of individual failures and the time interval between two successive failures are obtained.
    Original languageEnglish
    Pages (from-to)234-242
    Number of pages9
    JournalJournal of Waterway, Port, Coastal, and Ocean Engineering
    Issue number5
    Publication statusPublished - 2004


    • Cliffs
    • Erosion
    • Failure modes


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