Improved Analysis Method for Wave-Induced Pipeline Stability on Sandy Seabed
Publication: Journal of Transportation Engineering
Volume 132, Issue 7
Abstract
The existing Det Norske Veritas (DNV) Recommended Practice RP E305 for pipeline on-bottom stability is mainly based on the pipe–soil interaction model reported by Wagner et al. in 1987, and the wake model reported by Lambrakos et al. in 1987, to calculate the soil resistance and the hydrodynamic forces upon pipeline, respectively. Unlike the methods in the DNV Practice, in this paper, an improved analysis method is proposed for the on-bottom stability of a submarine pipeline, which is based on the relationships between and for various restraint conditions obtained by the hydrodynamic loading experiments, taking into account the coupling effects between wave, pipeline, and sandy seabed. The analysis procedure is illustrated with a detailed flow chart. A comparison is made between the submerged weights of pipeline predicted with the DNV Practice and those with the new method. The proposed analysis method may provide a helpful tool for the engineering practice of pipeline on-bottom stability design.
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Acknowledgments
Financial support by National Natural Science Foundation of China (Project No. NNSFC50509022) and “Tenth Five-year Plan” of Chinese Academy of Sciences (Project No. UNSPECIFIEDKJCX2-SW-L03) is greatly appreciated. The second writer is grateful for the support from Australian Research Council Large Grant Scheme No. UNSPECIFIEDA00104092 (2001–2003). The writers also thank Professor Xiaoyun Gu, Professor Qun Pu, and Senior Engineer Kun Li at Institute of Mechanics, Chinese Academy of Sciences, for their guidance and assistance in the experiments.
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Information & Authors
Information
Published In
Journal of Transportation Engineering
Volume 132 • Issue 7 • July 2006
Pages: 590 - 596
Copyright
© 2006 ASCE.
History
Received: May 17, 2005
Accepted: Nov 14, 2005
Published online: Jul 1, 2006
Published in print: Jul 2006
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