Wave-Induced Seabed Instability Around a Buried Pipe in a Poro-Elastic Seabed

摘要

Recently, great efforts have been dedicated to the phenomenon of wave-induced seabed instability in the vicinity of marine structures. The evaluation of the wave-induced soil response (including pore pressure, effective stresses and soil displacements) has been recognized as an important factor in the analysis of the instability of the seabed. This paper proposes a finite difference model in a curvilinear coordinate system to investigate the wave-induced soil response in the vicinity of a buried pipeline. The potential of the wave-induced seabed instability is studied as a function of geometry (buried depth and the diameter of a pipe) as well as the degree of saturation.