Journal article
Consideration for On-Bottom Stability of Unburied Pipelines Using a Dynamic Fluid-Structure-Soil Simulation Program
Yinghui Tian, Mark J Cassidy, Bassem S Youssef
INTERNATIONAL JOURNAL OF OFFSHORE AND POLAR ENGINEERING | INT SOC OFFSHORE POLAR ENGINEERS | Published : 2011
Abstract
The modeling of pipe-soil interaction in current industry practice is still based on Coulomb friction models and passive resistance. Analysis of the ultimate resistance capacity of the pipeline subjected to wave and current loading is taken as the criterion for on-bottom stability design. This approach is widely used in industry, and considerable experience has been accumulated. However, a sounder theoretical basis and more thorough understanding of pipe-soil behavior are still required. This paper provides considerations and discussion regarding the analysis of unburied pipeline stability using an integrated fluid-structure-soil interaction program. It also emphasizes the advantages of stab..
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Funding Acknowledgements
This research is being undertaken within the CSIRO Wealth from Oceans Flagship Cluster on Subsea Pipelines with funding from the CSIRO Flagship Collaboration Fund. The second author is the recipient of an Australian Research Council Future Fellowship and holds the Chair of Offshore Foundations from The Lloyd's Register Educational Trust, an independent charity working to achieve advances in transportation, science, engineering and technology education, training and research worldwide for the benefit of all. He gratefully acknowledges this support.