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口段从上游至下游由深水段、溢流段和浅水段组成。文中采用物理模型试验与数值模拟相结合的方
              法,分别对 4 种不同上游水深工况条件下鱼道出口段水力性能进行了评估。结果表明,受溢流段设置
              影响,深水段鱼道池室内形成非均匀流条件,当鱼道出口水深小于溢流口高度时,深水段鱼道内沿程
              形成壅水水面,上游水深越小受溢流池设置影响池室的数量越多。同时对鱼道出口段平均流速及溢流段
              水力特性体积占比等进行了统计分析,鱼道池室内流速及溢流段水力特性均满足洄游鱼类上溯的需要。
                  成功的过鱼设施需要同时考虑鱼类上溯、下行以及过鱼效率等因素。针对本研究提出的鱼道出口
              优化方案,研究团队已在具体鱼道工程中对鱼类上溯效果以及过鱼效率等开展了现场过鱼实验监测与
              评估,但目前监测周期和样本数尚不满足评估条件,需进一步开展相关评估工作。此外,由于溢流段
              的设置导致鱼道出口下游池室底板高程不一致,可能会对鱼类下行效率产生影响,目前尚未开展相关
              研究工作,下一步需结合实鱼试验以及现场监测工作进行专门研究。

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