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3-D Numerical Model for Wave-Induced Seabed Response around an Offshore Pipeline

Authors: Dong-Sheng Jeng, Zuodong Liang


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.

Keywords: Pore Pressure, Pipeline, seabed liquefaction

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[1] A. C. Palmer and R. A. King, Subsea pipeline engineering. PennWell Books, 2004.
[2] B. M. Sumer, F. H. Dixen, and J. Fredsøe, “Cover stones on liquefiable soil bed under waves,” Coastal Engineering, vol. 57, no. 9, pp. 864–873, 2010.
[3] J. Fredsøe, “Pipeline–seabed interaction,” Journal of Waterway, Port, Coastal, and Ocean Engineering, vol. 142, no. 6, p. 03116002, 2016.
[4] B. M. Sumer, Liquefaction around marine structures. World Scientific, 2014.
[5] K. Zen and H. Yamazaki, “Field observation and analysis of wave-induced liquefaction in seabed,” Soils and Foundations, vol. 31, no. 4, pp. 161–179, 1991.
[6] H. B. Seed and M. S. Rahman, “Wave-induced pore pressure in relation to ocean floor stability of cohesionless soils,” Marine Geotechnology, vol. 3, no. 2, pp. 123–150, 1978.
[7] T. Yamamoto, “Wave-induced pore pressures and effective stresses in inhomogeneous seabed foundations,” Ocean Engineering, vol. 8, pp. 1–16, 1981.
[8] O. S. Madsen, “Wave-induced pore pressures and effective stresses in a porous bed,” G´eotechnique, vol. 28, no. 4, pp. 377–393, 1978.
[9] B. M. Sumer, J. Fredsøe, S. Christensen, and M. L. Lind, “Sinking/floatation of pipelines and other objects in liquefied soil under waves,” Coastal Engineering, vol. 38, pp. 53–90, 1999.
[10] B. M. Sumer, C. Truelsen, T. Sichmann, and J. Fredsøe, “Onset of scour below pipelines and self-burial,” Coastal engineering, vol. 42, no. 4, pp. 313–335, 2001.
[11] T. C. Teh, A. C. Palmer, and J. S. Damgaard, “Experimental study of marine pipelines on unstable and liquefied seabed,” Coastal Engineering, vol. 50, pp. 1–17, 2003.
[12] C. Zhou, G. Li, P. Dong, J. Shi, and J. Xu, “An experimental study of seabed responses around a marine pipeline under wave and current conditions,” Ocean Engineering, vol. 38, no. 1, pp. 226–234, 2011.
[13] D. Jeng and Y. Lin, “Wave–induced pore pressure around a buried pipeline in gibson soil: finite element analysis,” International Journal for Numerical and Analytical Methods in Geomechanics, vol. 23, no. 13, pp. 1559–1578, 1999.
[14] D.-S. Jeng and L. Cheng, “Wave-induced seabed instability around a buried pipeline in a poro-elastic seabed,” Ocean Engineering, vol. 27, no. 2, pp. 127–146, 2000.
[15] A. H. D. Cheng and P. L.-F. Liu, “Seepage force on a pipeline buried in a poroelastic seabed under wave loading,” Applied Ocean Research, vol. 8, no. 1, pp. 22–32, 1986.
[16] F. Gao, D. S. Jeng, and H. Sekiguchi, “Numerical study on the interaction between non-linear wave, buried pipeline and non-homogenous porous seabed,” Computers and Geotechnics, vol. 30, no. 6, pp. 535–547, 2003.
[17] F.-P. Gao and Y.-X. Wu, “Non-linear wave induced transient response of soil around a trenched pipeline,” Ocean Engineering, vol. 33, pp. 311–330, 2006.
[18] X.-L. Zhou, D.-S. Jeng, Y.-G. Yan, and J.-H. Wang, “Wave-induced multi-layered seabed response around a buried pipeline,” Ocean Engineering, vol. 72, pp. 195–208, 2013.
[19] Z. Lin, Y. Guo, D.-s. Jeng, C. Liao, and N. Rey, “An integrated numerical model for wave–soil–pipeline interactions,” Coastal Engineering, vol. 108, pp. 25–35, 2016.
[20] H.-Y. Zhao, D.-S. Jeng, Z. Guo, and J.-S. Zhang, “Two dimensional model for pore pressure accumulations in the vicinity of a buried pipeline.” Journal of Offshore Mechanics and Arctic Engineering, ASME, vol. 136(4), p. 042001, 2014.
[21] P. Higuera, J. Lara, and I. Losada, “Realistic wave generation and active wave absorption for vavier-stokes models: Application to openfoam,” Coastal Engineeirng, vol. 71, pp. 102–118, 2013.
[22] F. Engelund, On the laminar and turbulent flows of ground water through homogeneous sand. Akad. for de Tekniske Videnskaber, 1953.
[23] H. Burcharth and O. Andersen, “On the one-dimensional steady and unsteady porous flow equations,” Coastal engineering, vol. 24, no. 3-4, pp. 233–257, 1995.
[24] M. A. Biot, “General theory of three-dimensional consolidation,” Journal of Applied Physics, vol. 26, no. 2, pp. 155–164, 1941.
[25] J. Ye and D.-S. Jeng, “Response of seabed to natural loading-waves and currents,” Journal of Engineering Mechanics, ASCE, vol. 138, no. 6, pp. 601–613, 2012.
[26] J. R. C. Hsu and D.-S. Jeng, “Wave-induced soil response in an unsaturated anisotropic seabed of finite thickness,” International Journal for Numerical and Analytical Methods in Geomechanics, vol. 18, no. 11, pp. 785–807, 1994.
[27] D. Jeng and J. Hsu, “Wave-induced soil response in a nearly saturated sea-bed of finite thickness,” Geotechnique, vol. 46, no. 3, pp. 427–440, 1996.
[28] D.-S. Jeng, Porous Models for Wave-seabed Interactions. Springer, 2012.
[29] B. Liu, D.-S. Jeng, G. Ye, and B. Yang, “Laboratory study for pore pressures in sandy deposit under wave loading,” Ocean Engineering, vol. 106, pp. 207–219, 2015.
[30] M. Umeyama, “Coupled piv and ptv measurements of particle velocities and trajectories for surface waves following a stedy current,” Journal of Waterway, Port, Coastal and Ocean Engineering , ASCE, vol. 137, pp. 85–94, 2011.
[31] M. Mattioli, J. M. Alsina, A. Mancinelli, M. Miozzi, and M. Brocchini, “Experimental investigation of the nearbed dynamics around a submarine pipeline laying on different types of seabed: the interaction between turbulent structures and particles,” Advances in water resources, vol. 48, pp. 31–46, 2012.