FAILURE OF RUBBLE MOUND STRUCTURES DUE TO THE STORM DURATION AND THE IRREGULARITY OF OCEAN WAVES

Cheong-Ro Ryu, Hyeon-Ju Kim

Abstract


Failure mechanism and destruction processes of rubble mound structures under the irregular wave attack are discussed in considering with the effects of wave grouping, storm duration, and structural conditions using the model test results. In the analysis of the stability, a new irregular force parameter that affect the failure of rubble mound structures is defined by combining wave grouping characteristics, storm duration effects and wave-structure interaction mechanisms. Using the external force parameter, a modified rubble mound design formula is suggested, and its applicability is proved by the results of comparative studies with the conventional results.

Keywords


irregular wave; storm; storm duration; structure failure; rubble mound

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