The subject of the wave-seabed-structure interaction is important for civil engineers regarding stability analysis of foundations for offshore installations. Most previous investigations have been concerned with such a problem in the vicinity of a simple structure such as a vertical wall. For more complicated structures such as pipeline, the phenomenon of the wave-seabed-structure has not been fully understood. This paper proposes a finite-difference model in a curvilinear coordinate system to investigate the wave-induced seabed response in a porous seabed around a pipeline. Based on the present numerical model, mechanism of the wave-induced soil response is examined. Employing Mohr-Coulomb failure criterion, the wave-induced seabed instability is also estimated. The numerical results indicate the importance of the effect of pipeline on the seabed response.
Wave-induced seabed instability around a buried pipeline in a poro-elastic seabed
Ocean Engineering ; 27 , 2 ; 127-146
2000
20 Seiten, 11 Bilder, 1 Tabelle, 31 Quellen
Aufsatz (Zeitschrift)
Englisch
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