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为了研究葛洲坝枢纽修建前后回水变动区的泥沙淤积变化及其对航运的影响,进行了长江三峡奉节至香溪河段的泥沙模型试验.试验中模拟了该河段悬移质和卵石推移质的运动,观测了泥沙冲淤变化及主要滩险的航运条件.本文主要依据模型试验成果,讨论葛洲坝枢纽回水变动区泥沙淤积和航运问题.
In order to study the sediment change of the backwater changing area before and after the construction of Gezhouba Dam and its impact on shipping, a sediment model test was carried out from Fengjie to Xiangxi Reach of the Three Gorges Reservoir. The movement of the mass and the shipping conditions of the main beach insurance were observed.The paper mainly discussed the sedimentation and shipping problems of the backwater variation zone of Gezhouba Dam based on the results of the model test.