Discussion on the Limits of Two-dimensional Plane Model for Sedimentation Downstream of Sluice

This paper focuses on sluice sedimentation mechanism after construction of river gate at estuarine areas with case studies of the Yao River and Wuzhang River sluices.2D suspended sediment model is used in this study to simulate and calculate,and the limits of the model in the simulation of the sedimentation near the sluice are also analyzed in the paper.The causes for the problem are preliminarily discussed.Because the sluice sedimentation has special and temporal characteristics,it is necessary to study the countermeasures to solve the problem.