三峡工程初期蓄水运用阶段，涪陵河段处于回水变动区，该河段较之重庆河段，受水库壅水影响早，水位抬升高，泥沙淤积对航运设施的影响早。通过全沙模型试验研究，揭示了该河段的水流泥沙运动特性和河床冲淤规律，及其对船舶安全航行和靠泊的影响。 In the early period of water storage for the Three Gorges Project, the Fuling Reaches are in the backwater variation zone. Compared with the Chongqing Reach, the Fuling Reach is early affected by the sluice water, and the elevation of water level is high. The impact of sedimentation on shipping facilities is early. Through the experimental study of the whole sand model, the characteristics of the flow and sediment movement and the scouring and silting of the riverbed are revealed, and their impacts on the safe navigation and berthing of the ship are revealed.