A New Design Method for Wave-Induced Pipeline Stability on a Sandy Seabed (No. R860)
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Open Access
Type
Report, ResearchAbstract
The existing DnV Recommended Practice (RP E305) for pipeline on-bottom stability is mainly based on the Pipe-Soil Interaction Model proposed by Wagner et al. (1987) and the Wake Model by Lambrakos et al. (1987) to calculate the soil resistance and the hydrodynamic forces upon ...
See moreThe existing DnV Recommended Practice (RP E305) for pipeline on-bottom stability is mainly based on the Pipe-Soil Interaction Model proposed by Wagner et al. (1987) and the Wake Model by Lambrakos et al. (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.
See less
See moreThe existing DnV Recommended Practice (RP E305) for pipeline on-bottom stability is mainly based on the Pipe-Soil Interaction Model proposed by Wagner et al. (1987) and the Wake Model by Lambrakos et al. (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.
See less
Date
2005Publisher
School of Civil Engineering, The University of SydneyLicence
Copyright All Rights ReservedRights statement
This publication may be redistributed freely in its entirety and in its original form without the consent of the copyright owner. Use of material contained in this publication in any other published works must be appropriately referenced, and, if necessary, permission sought from the author.Faculty/School
Faculty of Engineering, School of Civil EngineeringDepartment, Discipline or Centre
Centre for Advanced Structural EngineeringShare