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本文阐述了于1984年完成的长江三峡水利枢纽坝区泥沙模型施工通航(明渠结合临时船闸和升船机)方案试验研究工作。用模型测得的淤积量、流速流态及泥沙颗粒分析等成果,分析研究坝区上下游产生淤积的原因及其对施工通航的影响。然后,就有关施工通航问题进行综合探讨,对个别不利于施工通航的因素提出初步改进意见,并指出该施工通航方案是可行的。
This article describes the experimental study on the project of navigating the sediment model of the dam of the Three Gorges Project in the Yangtze River (combined with the temporary lock and lift ship) in 1984. Using the results of sediment accumulation, flow velocity and sediment particle analysis obtained from the model, the causes of siltation in the upstream and downstream of the dam and its influence on construction navigation were analyzed. Then, the paper discusses comprehensively about construction navigation problems, puts forward some suggestions for improvement on some factors that are not conducive to construction navigation, and points out that this construction navigation solution is feasible.