基于SWMM的节制闸影响研究

Study on impact of the gate based on SWMM

针对南水北调中线长距离输水明渠,节制闸众多,难免遇到闸门启闭过程,采用SWMM模型模拟明渠在闸门启闭过程中断面各时刻的渠段内水深、流量、流速变化情况,研究了闸门不同启闭速度和闸门不同开度下断面水力参数及水面线变化规律。结果表明闸门调节速度和开度变化越快,对渠道内水位波动影响越明显,渠道响应时间会缩短。

Due to the great mount of sluice gates with the middle route of the South to North Water Di- version Project,it＇s hard to avoid operation on and off of sluice gates. This paper use the SWMM model to simulate varies conditions water parameters, including the changing rule of depth of water af- ter the sluice gate under different operation conditions. The results show that faster of gates speed and the opening height is, greater the water level wave changes.