ABSTRACT

Since the Yangtze Estuary Deepwater Channel (YEDC) has been dredged to 12.5 m in March, 2010, the siltation quantity of the channel is larger than the predicted. According to the measured data, the characteristics of the sediment siltation of the channel are analyzed. The numerical model of sediment transport of YEDC, established in the past, is outlined. On this basis, the siltation predictions of each phase are compared with the measured values. Then, the trial calculations for different coefficients in the formula of sediment transport capacity are carried on and one of them can fit to the measured siltation distribution well. So, the suitable formula of sediment transport capacity of YEDC in deepwater channel needs to be studied in the further.