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首页> 外文期刊>Canadian Journal of Civil Engineering >Experimental study of flood diversion in the middle and lower Han River, China
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Experimental study of flood diversion in the middle and lower Han River, China

机译：汉中下游引洪试验研究

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摘要

River flood control plays an important and essential role to prevent the loss of life and property along the riverbank. This study designed a bend flume experiment to investigate the effects of flood diversion in the middle and lower of Han River using the method of passive control. The diversion breach evolution and the relations between the diversion flow through the breach and the influencing factors were analyzed. Four stages of the entire flood diversion process of non-cohesive dikes, namely overtopping, groove formation, breach stretching and stability stages, were proposed. The research results indicated that the particle size had an obvious effect on the erosion rate during the initial flood diversion, and little influence on the maximum diversion discharge. In addition, the water head between the inside and outside of river had a significant effect on the initial flow diversion. The greater the water head, the greater the diversion discharge that occurs.
机译：河流防洪在防止沿河生命和财产损失方面发挥着重要和必不可少的作用。本研究设计了一种弯水槽实验，以被动控制的方法研究汉江中下游洪水的分流影响。分析了分流违规演变以及分流违规流与影响因素之间的关系。提出了非粘性堤的整个洪水分流过程的四个阶段，即越过顶，形成沟，破坏伸展和稳定阶段。研究结果表明，粒径对初始分洪过程中的侵蚀率有明显的影响，对最大分流流量的影响很小。此外，河道内外之间的水头对初始分流有重要影响。水头越大，发生的分流排放越大。

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