Effect of sand mining project on the river channel

In this paper,a 2-D horizontal model with generalized curvilinear coordinate is developed to simulate flow and sediment tramsport.The model is calibrated and verfied by field data in the Wuhan reach of the Yangtze River.The variation features of water level and flow are simulated by using different discharges.The model is also used to forecast the silt change of the reach and the sediment re-silt efficiency in mining areas after sand mining through selecting typical flow and sediment series.The results can providea scientific reference for the feasibility and the scale of sand mining.