Seabed evolution forecast by hydrologic data

A seabed siltation calculation formula is established by using the balanced sediment concentration,and thus a new concept of seabed erosion and siltation index is derived and a discriminant of seabed erosion or siltration is obtained to predict the evolution trend of seabed.The tidal hydro-geological test data for Yangshan Port area collected by Shanghai International Shipping Center is further used to calculate the seabed siltation indices and predict the seabed siltation trend.The predicted result is exactly consistent with the field-measured data.