Study on tide current and sediment of Temsack River Port Project,Dalian Port

According to the up-to-date hydrological and sediment data of field observation,statistical analysis was done for the research and the parameters for the numerical model were provided firstly.By building up the multiple nested tidal numerical models,current field before and after the execution of the project under normal weather was simulated.The annual average sediment concentration was first computed under the wind and wave action,then the sediment siltation was computed and the annual deposition distribution was also obtained after completion of the project.This study provides design basis for the project from the perspective of the sediment and current.The results show that the impact of the project on the surrounding waters is small after completion.The current intensity of port circulation and berthing area is very low.The cross-flow velocity of scheme one is significantly smaller than that of the other two schemes.The average deposition intensity during a year is 0.08~ 0.12 m after the projects.Therefore,the project is feasible.