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从船闸灌泄水非恒定流对闸室与引航道水力特性的影响出发,通过物理模型试验观测了引航道的波动形态、波动水力特性;探讨了闸首处最大水面升降与最大流量、引航道长度的关系;分析了闸室超高(降)与引航道水面升降对人字闸门的影响。结果表明调平闸室与上下游水位后,人字闸门的内侧(闸室)承受惯性水头,外侧(引航道)承受水面周期升降,人字闸门承受正反水头的作用,该水头呈抵消趋势,所以引航道水面升降有助于反向水头的减小。同时,讨论了惯性超高(降)改善措施、引航道水面波动的利弊及对集中输水系统船闸人字闸门的影响。
Starting from the influence of the unsteady flow of the sluice filling water on the hydraulic characteristics of the lock chamber and the approach channel, the fluctuation patterns and fluctuating hydraulic characteristics of the approach channel were observed through the physical model test. The maximum water surface lift and maximum flow at the gate head were discussed. Length of the gate; analysis of the gate chamber ultra-high (down) and the lead channel surface lift Miter gate impact. The result shows that the inner side of the Miter Gate withstands the head of water and the outer side of the Mouth gate withstands the water cycle, and the Miter Gate withstands the positive and negative water head, , So the approach channel water surface lift helps reduce the reverse head. In the meantime, the advantages and disadvantages of measures to improve the inertia (high) and the water surface fluctuation in the approach channel and the effects on the Miter Gate of the centralized water conveyance system are discussed.