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三峡工程船闸和升船机引航道泥沙淤积问题是技术设计中需要解决的技术关键问题之一。１９８６年以来，长江科学院开展了系统研究工作，从引航道泥沙淤积的机理入手，对防淤清淤措施作了初步探讨。研究结果认为，三峡工程船闸和升船机引航道泥沙淤积导致碍航问题，可以采取冲沙闸结合冲沙船松动淤沙，设置水帘、气帘，及机械挖泥等措施加以解决。
Sediment deposition in the navigation channel of the Three Gorges Project ship lock and ship lift is one of the key technical issues to be solved in the technical design. Since 1986, the Yangtze River Scientific Research Institute has carried out systematic research. Starting from the mechanism of sediment deposition in the navigation channel, preliminary discussions are made on the anti-siltation measures. The result of the study shows that sediment deposition in the navigation channel of the Three Gorges Project lock and the lift ship lead to problems in obstructing the navigation, and can be solved by adopting flushing sluice gates combined with loosening and silting of red sand silos, setting curtains, air curtains and mechanical dredging.