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阐述了三峡工程船闸上游引航道长堤口门区的斜流特性研究成果，其中包括水库泥沙冲淤发展地形和口门位置等边界条件对斜流强度、分布范围等的影响，以及船舶进出口门的航行与斜流的关系。介绍了用斜流和斜流效应的特征量来分析口门区的通航水流条件及其优化改善措施。
The research results on the characteristics of flow characteristics of the upper reaches of the Three Gorges Project ship lock catchments, including the influence of the boundary conditions such as the topography and the location of the mouth gate on sediment erosion and deposition, on the strength and distribution range of the slump, The relationship between the exit gate sailing and diagonal flow. The characteristics of diagonal flow and diagonal flow are introduced to analyze the navigation flow conditions in the hatch area and the optimization and improvement measures.