Numerical Simulation of Tidal Current and Sediment for the Secondary Diaoliang Reclamation in Zhoushan

Based on the 2-D tidal current and sediment model, the field of tidal current near the sea of the secondary Diaoliang reclamation in Zhoushan was simulated due to the construction of the southern dike. After the simulation , the result was varified by the measured data .The impact on the surrounding sea and the annual change in erosion and deposition after the project was analyzed. The results show that the local current velocity in the eastern side of Luomen sea area features obviously decrease because of the reclamation project.The deposition is presented in the Diaoliang bay with the mean siltation intensity of around 0.8m/a, as well as about 1.1m/a of Luomen wharf apron .