Numerical modelling of wave-induced pore pressure around a buried pipeline: WSPI-3D model

Shabani, Behnam, Jeng, Dong-Sheng, Ye, Jianhong and Guo, Yakun (2010). Numerical modelling of wave-induced pore pressure around a buried pipeline: WSPI-3D model. In: ASME conference proceedings: 29th International Conference on Ocean, Offshore and Arctic Engineering. ASME 2010 29th International Conference on Ocean, Offshore and Arctic Engineering (OMAE2010), Shanghai, China, (747-755). 6–11 June 2010. doi:10.1115/OMAE2010-20528


Author Shabani, Behnam
Jeng, Dong-Sheng
Ye, Jianhong
Guo, Yakun
Title of paper Numerical modelling of wave-induced pore pressure around a buried pipeline: WSPI-3D model
Conference name ASME 2010 29th International Conference on Ocean, Offshore and Arctic Engineering (OMAE2010)
Conference location Shanghai, China
Conference dates 6–11 June 2010
Proceedings title ASME conference proceedings: 29th International Conference on Ocean, Offshore and Arctic Engineering
Journal name Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering
Place of Publication Fairfield, NJ, U.S.A.
Publisher ASME International
Publication Year 2010
Sub-type Fully published paper
DOI 10.1115/OMAE2010-20528
ISBN 9780791849095
Volume 1
Issue 1523-651X
Start page 747
End page 755
Total pages 9
Language eng
Abstract/Summary In this paper, a three-dimensional numerical model is developed to analyze the ocean wave-induced seabed response. The pipeline is assumed to be rigid and anchored within a trench. Quasi-static soil consolidation equations are solved with the aid of the proposed Finite Element (FE) model within COMSOL Multiphysics. The influence of wave obliquity on seabed responses, the pore pressure and soil stresses, are studied. A comprehensive tests of FE meshes is performed to determine appropriate meshes for numerical calculations. The present model is verified with the previous analytical solutions without a pipeline and two-dimensional experimental data with a pipeline. Numerical results suggest that the effect of wave obliquity on soil responses can be explained through the following two mechanisms: (i) geometry-based three-dimensional influences, and (ii) the formation of inversion nodes. However, the influences of wave obliquity on the wave-induced pore pressure are insignificant.
Q-Index Code E1
Q-Index Status Provisional Code
Institutional Status UQ
Additional Notes Paper no. OMAE2010-20528

Document type: Conference Paper
Collections: School of Civil Engineering Publications
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Created: Fri, 21 Oct 2011, 10:59:17 EST by Jeannette Watson on behalf of School of Civil Engineering