Abstract
Following the suction anchor installation, preloading of the anchor chain has to be carried out to remove slack. The assessment of a pretension level should take into account not only the additional chain slippage that may occur in service, but also the chain tension at the pad-eye which is transferred from the touchdown point (TDP) at the seabed. In this paper, a novel quasi-static model, which has considered the three-dimensional (3D) characteristics of soil resistance and chain elastic elongation, is presented to provide an accurate prediction of the behavior of an embedded chain. Based on this model, the chain profiles and tension distributions under different pretension levels are first calculated. While experiencing larger environment loads in service, the embedded chain will produce further movement in 3D space, which can be obtained by taking the chain equilibrium after pretensioning as the initial condition. Finally, the influence of pretension loads and angles at the TDP on the behaviors of embedded chain are thoroughly studied, and some useful conclusions are drawn.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
