Show simple item record

dc.contributor.authorZhao, HY
dc.contributor.authorLiu, XL
dc.contributor.authorJeng, DS
dc.contributor.authorZheng, JH
dc.contributor.authorZhang, JS
dc.contributor.authorLiang, ZD
dc.date.accessioned2022-01-13T23:33:41Z
dc.date.available2022-01-13T23:33:41Z
dc.date.issued2022
dc.identifier.issn0378-3839
dc.identifier.doi10.1016/j.coastaleng.2021.104056
dc.identifier.urihttp://hdl.handle.net/10072/411450
dc.description.abstractThis paper presents a numerical investigation into the vulnerability to liquefaction of an embedded pipeline exposed to ocean storms. In this study a series of irregular waves similar to a real ocean storm were generated using the JONSWAP spectrum, and their motions with the presence of ocean currents are described using the Reynolds-Averaged Navier–Stokes (RANS) equations. Under storm waves and currents, the dynamics of a seabed with an embedded pipeline were reproduced using a coupled fluid-dynamic framework. An advanced constitutive model (modified Pastor-Zienkiewicz Mark-III) was used to describe the cyclic plasticity of soil. This model was calibrated according to the given soil properties; the predicted results match the wave flume test and geotechnical centrifugal test fairly well when the evolution of residual pore water pressure near the pipe and/or further away are considered. The numerical results indicated that seabed soil is more susceptible to liquefaction due to regular waves than irregular waves. The specific gravity of the pipe can significantly affect the onset and spread of liquefaction in the neighbouring region. As a practical guide, a relationship between the critical wave height and the depth to which the pipe is buried is proposed to control the liquefaction at the bottom of the pipe by selecting feasible backfill materials based on operational requirements and ocean storm conditions.
dc.description.peerreviewedYes
dc.languageen
dc.publisherElsevier BV
dc.relation.ispartofpagefrom104056
dc.relation.ispartofjournalCoastal Engineering
dc.relation.ispartofvolume172
dc.relation.urihttp://purl.org/au-research/grants/ARC/LE170100090
dc.relation.grantIDLE170100090
dc.relation.fundersARC
dc.subject.fieldofresearchGeology
dc.subject.fieldofresearchOceanography
dc.subject.fieldofresearchCivil engineering
dc.subject.fieldofresearchPhysical oceanography
dc.subject.fieldofresearchMarine engineering
dc.subject.fieldofresearchcode3705
dc.subject.fieldofresearchcode3708
dc.subject.fieldofresearchcode4005
dc.subject.fieldofresearchcode370803
dc.subject.fieldofresearchcode401501
dc.titleNumerical investigation into the vulnerability to liquefaction of an embedded pipeline exposed to ocean storms
dc.typeJournal article
dc.type.descriptionC1 - Articles
dcterms.bibliographicCitationZhao, HY; Liu, XL; Jeng, DS; Zheng, JH; Zhang, JS; Liang, ZD, Numerical investigation into the vulnerability to liquefaction of an embedded pipeline exposed to ocean storms, Coastal Engineering, 2022, 172, pp. 104056
dcterms.licensehttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.date.updated2022-01-06T20:31:04Z
dc.description.versionAccepted Manuscript (AM)
gro.rights.copyright© 2021 Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International Licence (http://creativecommons.org/licenses/by-nc-nd/4.0/) which permits unrestricted, non-commercial use, distribution and reproduction in any medium, providing that the work is properly cited.
gro.hasfulltextFull Text
gro.griffith.authorJeng, Dong-Sheng


Files in this item

This item appears in the following Collection(s)

  • Journal articles
    Contains articles published by Griffith authors in scholarly journals.

Show simple item record