Journal
JOURNAL OF WATERWAY PORT COASTAL AND OCEAN ENGINEERING-ASCE
Volume 130, Issue 5, Pages 234-242Publisher
ASCE-AMER SOC CIVIL ENGINEERS
DOI: 10.1061/(ASCE)0733-950X(2004)130:5(234)
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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.
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