3-D Numerical Model For Wave-Induced Seabed Response Around An Offshore Pipeline

• Main Authors: Zuodong Liang, Jeng, Dong-Sheng
• Format: Text
• Language: English
• Published: Zenodo 2018
• Subjects: Pore pressure; 3D wave model; seabed liquefaction; pipeline.; Arctic; Christensen
• Online Access: https://dx.doi.org/10.5281/zenodo.1316747; https://zenodo.org/record/1316747

Seabed instability around an offshore pipeline is one of key factors that need to be considered in the design of offshore infrastructures. Unlike previous investigations, a three-dimensional numerical model for the wave-induced soil response around an offshore pipeline is proposed in this paper. The numerical model was first validated with 2-D experimental data available in the literature. Then, a parametric study will be carried out to examine the effects of wave, seabed characteristics and confirmation of pipeline. Numerical examples demonstrate significant influence of wave obliquity on the wave-induced pore pressures and the resultant seabed liquefaction around the pipeline, which cannot be observed in 2-D numerical simulation. : {"references": ["A. C. Palmer and R. A. King, Subsea pipeline engineering. PennWell\nBooks, 2004.", "B. M. Sumer, F. H. Dixen, and J. 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