三峡工程初期蓄水回水变动区涪陵河段泥沙模型试验研究

Sediment model test study on Fuling reach of the varying backwater region during initial impoundment of Three Gorges project

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。

During the initial filling of Three Gorges project Fuling reach located at the varying backwater region, has earlier influences on its water level rise and navigation facilities than that of the Chongqing reach.Through total sediment model tests, the characteristics of sediment movement and the rules of bed scour and sedimentation of this reach, also its influences upon safe navigation and ship anchorage were revealed.