Academic Journal
Influence of Trailing Suction Hopper Dredger Side-Casting Backfilling Parameters on Far-Field Plume Dispersion and Deposition of Sediments
| Τίτλος: | Influence of Trailing Suction Hopper Dredger Side-Casting Backfilling Parameters on Far-Field Plume Dispersion and Deposition of Sediments |
|---|---|
| Συγγραφείς: | Hongwen Zheng, Diqing Rong, Mingjie Yu, Dongliang Meng, Tao Sun, Wei Wei |
| Πηγή: | Journal of Marine Science and Engineering ; Volume 14 ; Issue 7 ; Pages: 676 |
| Στοιχεία εκδότη: | Multidisciplinary Digital Publishing Institute |
| Έτος έκδοσης: | 2026 |
| Συλλογή: | MDPI Open Access Publishing |
| Θεματικοί όροι: | trailing suction hopper dredger (TSHD), layered side-casting backfilling, sediment plume, far-field dispersion, recovery duration |
| Θέμα γεωγραφικό: | agris |
| Περιγραφή: | Layered side-casting backfilling performed with a trailing suction hopper dredger (TSHD) is widely used in tidal waters, but its continuous moving release can generate a time-varying far-field sediment plume that complicates both backfilling control and environmental impact assessment. To investigate how construction parameters affect far-field sediment dispersion and deposition under side-casting conditions, this study develops a two-dimensional hydrodynamic–sediment coupled numerical model with a mass-conserving moving-source term for a tidally dominated coastal area. Model performance was evaluated against field observations, yielding NRMSE/MRAE values of 0.0787/6.03% for water level, 0.2249/18.30% for current speed, 0.2344/27.10% for suspended-sediment concentration (SSC), and 0.1230/11.10% for deposition thickness; the correlation coefficient for current speed was 0.904. Based on the validated model, scenario analyses were conducted for different combinations of sailing speed and sediment concentration. The results show that far-field plume evolution exhibits pronounced stage-dependent behavior, with the largest affected footprint generally occurring during the late operational period or shortly after source termination. Within the tested parameter space, sailing speed has a stronger influence on the dispersion scale and SSC recovery duration because it controls both the release duration and source sweeping rate. Sediment concentration more directly affects deposition-related responses, including deposited thickness, lateral coverage, and along-track continuity, although its incremental effects weaken in the high-concentration range and remain coupled with sailing speed. Dimensional analysis further suggests that the relative magnitudes of source duration, advection, and settling timescales help explain the differences among scenarios. These results provide a physically based reference for parameter selection and construction planning in layered side-casting backfilling under tidal forcing. |
| Τύπος εγγράφου: | text |
| Περιγραφή αρχείου: | application/pdf |
| Γλώσσα: | English |
| Relation: | Ocean Engineering; https://dx.doi.org/10.3390/jmse14070676 |
| DOI: | 10.3390/jmse14070676 |
| Διαθεσιμότητα: | https://doi.org/10.3390/jmse14070676 |
| Rights: | https://creativecommons.org/licenses/by/4.0/ |
| Αριθμός Καταχώρησης: | edsbas.257752F2 |
| Βάση Δεδομένων: | BASE |
| FullText | Text: Availability: 0 CustomLinks: – Url: https://doi.org/10.3390/jmse14070676# Name: EDS - BASE (ns324271) Category: fullText Text: View record from BASE |
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| Items | – Name: Title Label: Title Group: Ti Data: Influence of Trailing Suction Hopper Dredger Side-Casting Backfilling Parameters on Far-Field Plume Dispersion and Deposition of Sediments – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Hongwen+Zheng%22">Hongwen Zheng</searchLink><br /><searchLink fieldCode="AR" term="%22Diqing+Rong%22">Diqing Rong</searchLink><br /><searchLink fieldCode="AR" term="%22Mingjie+Yu%22">Mingjie Yu</searchLink><br /><searchLink fieldCode="AR" term="%22Dongliang+Meng%22">Dongliang Meng</searchLink><br /><searchLink fieldCode="AR" term="%22Tao+Sun%22">Tao Sun</searchLink><br /><searchLink fieldCode="AR" term="%22Wei+Wei%22">Wei Wei</searchLink> – Name: TitleSource Label: Source Group: Src Data: Journal of Marine Science and Engineering ; Volume 14 ; Issue 7 ; Pages: 676 – Name: Publisher Label: Publisher Information Group: PubInfo Data: Multidisciplinary Digital Publishing Institute – Name: DatePubCY Label: Publication Year Group: Date Data: 2026 – Name: Subset Label: Collection Group: HoldingsInfo Data: MDPI Open Access Publishing – Name: Subject Label: Subject Terms Group: Su Data: <searchLink fieldCode="DE" term="%22trailing+suction+hopper+dredger+%28TSHD%29%22">trailing suction hopper dredger (TSHD)</searchLink><br /><searchLink fieldCode="DE" term="%22layered+side-casting+backfilling%22">layered side-casting backfilling</searchLink><br /><searchLink fieldCode="DE" term="%22sediment+plume%22">sediment plume</searchLink><br /><searchLink fieldCode="DE" term="%22far-field+dispersion%22">far-field dispersion</searchLink><br /><searchLink fieldCode="DE" term="%22recovery+duration%22">recovery duration</searchLink> – Name: Subject Label: Subject Geographic Group: Su Data: <searchLink fieldCode="DE" term="%22agris%22">agris</searchLink> – Name: Abstract Label: Description Group: Ab Data: Layered side-casting backfilling performed with a trailing suction hopper dredger (TSHD) is widely used in tidal waters, but its continuous moving release can generate a time-varying far-field sediment plume that complicates both backfilling control and environmental impact assessment. To investigate how construction parameters affect far-field sediment dispersion and deposition under side-casting conditions, this study develops a two-dimensional hydrodynamic–sediment coupled numerical model with a mass-conserving moving-source term for a tidally dominated coastal area. Model performance was evaluated against field observations, yielding NRMSE/MRAE values of 0.0787/6.03% for water level, 0.2249/18.30% for current speed, 0.2344/27.10% for suspended-sediment concentration (SSC), and 0.1230/11.10% for deposition thickness; the correlation coefficient for current speed was 0.904. Based on the validated model, scenario analyses were conducted for different combinations of sailing speed and sediment concentration. The results show that far-field plume evolution exhibits pronounced stage-dependent behavior, with the largest affected footprint generally occurring during the late operational period or shortly after source termination. Within the tested parameter space, sailing speed has a stronger influence on the dispersion scale and SSC recovery duration because it controls both the release duration and source sweeping rate. Sediment concentration more directly affects deposition-related responses, including deposited thickness, lateral coverage, and along-track continuity, although its incremental effects weaken in the high-concentration range and remain coupled with sailing speed. Dimensional analysis further suggests that the relative magnitudes of source duration, advection, and settling timescales help explain the differences among scenarios. These results provide a physically based reference for parameter selection and construction planning in layered side-casting backfilling under tidal forcing. – Name: TypeDocument Label: Document Type Group: TypDoc Data: text – Name: Format Label: File Description Group: SrcInfo Data: application/pdf – Name: Language Label: Language Group: Lang Data: English – Name: NoteTitleSource Label: Relation Group: SrcInfo Data: Ocean Engineering; https://dx.doi.org/10.3390/jmse14070676 – Name: DOI Label: DOI Group: ID Data: 10.3390/jmse14070676 – Name: URL Label: Availability Group: URL Data: https://doi.org/10.3390/jmse14070676 – Name: Copyright Label: Rights Group: Cpyrght Data: https://creativecommons.org/licenses/by/4.0/ – Name: AN Label: Accession Number Group: ID Data: edsbas.257752F2 |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.3390/jmse14070676 Languages: – Text: English Subjects: – SubjectFull: agris Type: general – SubjectFull: trailing suction hopper dredger (TSHD) Type: general – SubjectFull: layered side-casting backfilling Type: general – SubjectFull: sediment plume Type: general – SubjectFull: far-field dispersion Type: general – SubjectFull: recovery duration Type: general Titles: – TitleFull: Influence of Trailing Suction Hopper Dredger Side-Casting Backfilling Parameters on Far-Field Plume Dispersion and Deposition of Sediments Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Hongwen Zheng – PersonEntity: Name: NameFull: Diqing Rong – PersonEntity: Name: NameFull: Mingjie Yu – PersonEntity: Name: NameFull: Dongliang Meng – PersonEntity: Name: NameFull: Tao Sun – PersonEntity: Name: NameFull: Wei Wei IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 01 Type: published Y: 2026 Identifiers: – Type: issn-locals Value: edsbas – Type: issn-locals Value: edsbas.oa Titles: – TitleFull: Journal of Marine Science and Engineering ; Volume 14 ; Issue 7 ; Pages: 676 Type: main |
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