三峡工程引航道尺度与水位波动幅度的关系

A Study on the Wlationship of Unsteady Fluctuation Range and the Size of the Three gorges Navigational Approaches

通过理论模式分析和二维数学模型计算，讨论了三峡船闸上游引航道尺度对水位波动的影响规律．虽然增加引航道内水域的面积有助于降低水位波动的幅度，但是，由于最大水位波动幅度与引航道的内部水域尺度并不是单调的关系，因此尺度的局部优化对波动条件改善具有重要意义．

Based on a theoretical and a two dimensiona numerical model, the water surface fluetuation of the Three Gorges navigational approaches is discussed in this paper. Because the water surface flututation decreases in a non monotone way with the inereasing of the dimensions, a finitive enlargement of the size of the approaches is not arways good. Small changes and optimization of the approach size is suggested.