Morphodynamic Characteristics and Medium-Term Simulation of the North-South Passage Under the Impact of the Yangtze Estuary Deepwater Navigation Channel Project

作     者：JIAO Jian DOU Xi-ping GAO Xiang-yu DING Lei YANG Xiao-yu JIAO Jian;DOU Xi-ping;GAO Xiang-yu;DING Lei;YANG Xiao-yu

作者机构：Key Laboratory of PortWaterway and Sedimentation Engineering of MOTNanjing Hydraulic Research InstituteNanjing 210029China College of Water Conservancy and Hydropower EngineeringHohai UniversityNanjing 210098China 

出 版 物：《China Ocean Engineering》 (中国海洋工程（英文版）)

年 卷 期：2020年第34卷第2期

页      面：198-209页

核心收录：

学科分类：0710[理学-生物学] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 0908[农学-水产] 0707[理学-海洋科学] 08[工学] 0807[工学-动力工程及工程热物理] 0815[工学-水利工程] 0824[工学-船舶与海洋工程] 0802[工学-机械工程] 0801[工学-力学（可授工学、理学学位）] 

基　　金：the National Key R&D Program of China(Grant No.2017YFC0405400) the National Natural Science Foundation of China(Grant No.51979172) Innovation Team Project of Estuarine and Coastal Protection and Management(Grant No.Y220013) 

主　　题：Yangtze Estuary numerical model morphology tidal current sediment transport deepwater navigation channel project(DNCP) 

摘      要：The morphological evolution characteristics of the North-South Passage area since the construction of the Yangtze Estuary Deepwater Navigation Channel Project(DNCP)are analyzed on the basis of the measured data.A twodimensional morphodynamics numerical model of the Yangtze Estuary is established to verify the morphological evolution of the North-South Passage under the influence of the DNCP and to predict the future evolution in the next 40 *** analysis shows that the North Passage has experienced rapid adjustment stages and adaptive stages after the construction of the *** erosion occurred along the main channel,and slow siltation could be observed in the area between the *** South Passage showed a state of upper section erosion and down section *** present,the whole South Passage is in a slight erosion *** to the numerical model,the eroding and silting speed of the North Passage will slow down in the *** present state that erosion occurs in the main channel and siltation occurs between the groins will *** South Passage will still maintain upper section erosion and down section deposition in the *** to the main channel erosion of the North Passage and siltation of the South Passage,the sediment division ratio of the North Passage will increase in the future but still be smaller than 50%.After morphological evolution of 40 years,the direction of residual sediment transport caused by M2 and M4 tidal components in the North Passage has not changed,but the transport rate will *** is considered that the morphological evolution of the North-South Passage could reach a relatively stable state after 40 years.