天津科技大学学报2023，Vol.38Issue(6)：27-34,46,9.DOI:10.13364/j.issn.1672-6510.20230022
围填海对渤海湾泥沙冲淤的影响
Influences of Land Reclamation on Sediment Erosion and Deposition in the Bohai Bay
摘要
Abstract
Based on the finite-volume coastal ocean model(FVCOM)-simulating waves nearshore(SWAN)coupling model,a three-dimensional sediment model was established to simulate the sediment transport in the Bohai Bay before and after land reclamation.Influences of the land reclamation on sediment erosion and deposition in the Bohai Bay were ana-lyzed.Results showed that the land reclamation had a significant impact on the sediment transport near the reclamation area,but had little impact on those far away from it.The monthly-averaged and depth-averaged sediment concentration during flood and ebb tide increased for the waters near the third harbor gate of Caofeidian,Tianjin Nangang Industrial Zone(TNIZ)and part of Huanghua Port,while decreased for other main reclamation areas.The main direction of sediment transport in the Bohai Bay had no obvious change,showing an onshore transport from the East to the West.At the same time,the erosion and deposition near the third harbor gate of Caofeidian changed,while deposition decreased for other waters inside the third har-bor.Deposition increased for the waters near the outer boundaries of Tianjin Port.Erosion increased for the waters near the gate of Tianjin Harbor Economic Area and the gate of TNIZ as well as its Southeast corner of outer boundary.The change range of erosion and deposition for the waters near Huanghua Port was relatively small.Moreover,the effects of wave on sediment were also investigated.Compared with the case where the wave-current interaction was not considered,in general,the sediment concentration in the coastal waters of the Bohai Bay increased,the suspended sediment flux per unit width changed obviously,as well as the scour and deposition differed significantly.关键词
渤海湾/围填海/泥沙冲淤/波流共同作用/FVCOM-SWAN模型Key words
the Bohai Bay/land reclamation/sediment erosion and deposition/wave-current interaction/FVCOM-SWAN model分类
海洋学引用本文复制引用
王瑞清,闫伟,丁磊..围填海对渤海湾泥沙冲淤的影响[J].天津科技大学学报,2023,38(6):27-34,46,9.基金项目
天津市教委科研计划资助项目(2018KJ101) （2018KJ101）
