Abstract:Taking the port construction of artificial island in Meishan Port as an example,this study investigates the currents and sediment dynamics in strong tidal current areas.The findings indicate that due to the obstruction of artificial islands,the ebb current forms a bypass flow around the island,resulting in a slack water zone in front of the wharf in the design scheme.The flood currents are primarily influenced by the obstruction of the wharf pile foundations,creating a localized slack water zone along the western wharf frontage.By optimizing the layout with diagonally oriented wharves to guide the flow,the optimization plan improved the ebb current conditions in front of the wharf.After implementing the planned scheme with interconnected wharves,the flood current conditions also showed improvement.After the implementation of the design scheme,the average annual siltation thickness in the berthing areas of berths 16#-21#?is 2.2 m,with a maximum annual siltation thickness of 4.3 m.The total annual siltation volume in the berthing and maneuvering areas reached 3.85 million m3.After implementing the optimization scheme,the total annual siltation volume is reduced by approximately 80,000 m3,and after implementing the planned scheme,the reduction is about 1.85 million m3.
