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沧河渠道倒虹吸工程行洪口门宽度试验研究
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摘要：
在宽浅式河道上修建穿河倒虹吸工程，行洪口门宽度是影响建筑物投资和安全的决定因素。结合沧河渠道倒虹的工程情况，在数值计算基础上，运用河工模型试验，对穿河工程附近河道的壅水和冲刷进行研究，推荐了670m口门宽度方案。对同类工程设计具有重要的参考价值。
关键字：
倒虹吸 行洪口门 壅水 河床冲刷 河工模型试验
Abstract:When the inverted siphon project is constructed on the wide-shallow channel,the width of the opening for flood discharge is the determinative factor to affect the investment and safety of the structure concerned.Base on the site condition for the construction of Canghe River inverted siphon project,the effects of the riverbed backwater and erosion are described through the using of hydraulic model after mathematics model, and then alternative plan with the opening width of 670m is recommended ,which provide the similar project design with an important reference value 。
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