Application of three-dimensional hydro-sediment models in navigation channel siltation reduction measures
In November 2015,the port area of Binzhou Harbor in Shandong Province experienced a sudden siltation process due to strong winds,leading to severe siltation in the existing 30,000-ton navigation channel.The construction and development of Binzhou Harbor,and the swift siltation management of navigation channels are critical.Based on the three-dimensional tidal current and sediment model FVCOM and the wave model SWAN,considering the interaction between hydrodynamics and sediment,a new three-dimensional hydro-sediment model based on novel three-dimensional radiation stress was established.This model was validated through the simulation and analysis of tidal current fields,wave fields,and suspended sediment fields based on full-tide hydrological observation data from 2014.Furthermore,the siltation volume under strong wind conditions for the current navigation channel,and for extensions of the outfall dyke head to 7.5 m and 9.0 m scenarios were calculated,analyzing the reasons behind channel siltation.Comparative results of the simulations demonstrate that the further the extension of the outfall dyke,the greater the reduction in channel siltation,but the per-width reduction in siltation will gradually decrease with continued extension.This study provides a reference for navigation channel siltation control and siltation reduction measures.
tidal current sedimentsudden siltationFVCOMSWANBinzhou Harbor
万方数据
维普
