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dc.contributor.authorZhai, H
dc.contributor.authorJeng, DS
dc.contributor.authorGuo, Z
dc.contributor.authorSui, T
dc.date.accessioned2021-11-02T23:44:25Z
dc.date.available2021-11-02T23:44:25Z
dc.date.issued2021
dc.identifier.issn0141-1187
dc.identifier.doi10.1016/j.apor.2021.102896
dc.identifier.urihttp://hdl.handle.net/10072/409674
dc.description.abstractSediment incipient motion is one of main forms to undermine the stability of piled-type foundations in the coastal environment. Unlike previous studies ignoring the impact of seabed seepage, the three-dimensional seepage is included in the process of sediment incipient motion in this study. A new modified coefficient (R) representing the ratio of modified Shields number and conventional Shields number is introduced to investigate the impact of three-dimensional seepage on sediment incipient motion. It is found that a discontinuity of 3D modified coefficient (R) occurs at the phase with zero flow velocity. The horizontal seepage extremely affects the hydrodynamic characteristics and the sediment incipient motion beside the pile. However, the horizontal seepage can be ignored at the positions before and behind the pile. The parametric study indicates that larger wave height, current velocity and soil permeability and smaller water depth, shear modulus and saturation degree remarkably increase the three-dimensional modified coefficient (R) around the pile and further promote the sediment incipient motion and scour.
dc.description.peerreviewedYes
dc.languageen
dc.publisherElsevier BV
dc.relation.ispartofpagefrom102896
dc.relation.ispartofjournalApplied Ocean Research
dc.relation.ispartofvolume117
dc.subject.fieldofresearchOceanography
dc.subject.fieldofresearchCivil engineering
dc.subject.fieldofresearchResources engineering and extractive metallurgy
dc.subject.fieldofresearchcode3708
dc.subject.fieldofresearchcode4005
dc.subject.fieldofresearchcode4019
dc.titleModified Shields number for sediment incipient motion around a pile with impact of three-dimensional seepage in a porous seabed
dc.typeJournal article
dc.type.descriptionC1 - Articles
dcterms.bibliographicCitationZhai, H; Jeng, DS; Guo, Z; Sui, T, Modified Shields number for sediment incipient motion around a pile with impact of three-dimensional seepage in a porous seabed, Applied Ocean Research, 2021, 117, pp. 102896
dcterms.licensehttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.date.updated2021-10-25T02:52:34Z
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


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