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首页> 外文会议>Congress of Asia and Pacific Division of International Association of Hydraulic Engineering and Research >INFLUENCE OF CHANNEL WIDTH ON THE FLOOD FLOWS IN A STREAM VALLEY
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INFLUENCE OF CHANNEL WIDTH ON THE FLOOD FLOWS IN A STREAM VALLEY

机译：信道宽度对溪流河流流动的影响

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Investigative reports of flood disaster in a stream valley state that the magnitude of flood damages depends on the stream configuration. A meandering stream runs in mountainous basins through narrow valley. Flood damages were serious around the narrow apex of a bend. On the other hands, the damages were little serious around the wide apex. From this point of view, the stream width at the apex of a bend was focused on. The experiments with a doubly meandering compound channel were conducted to investigate the influence of channel width on the flood flows. Water surface flows were visualized, and water level was measured. The channel width influences on the magnitude of water surface velocity and divergence, implying that the scale of bank erosion can be difference. The magnitude is large in the case of narrow apex. On the other hand, the magnitude is small in the case of wide apex. This means that the flood damages can be explained by experimental results. As a result, it is supposed that appropriate river width must be taken into account to reduce the flood damages in a stream valley.
机译：洪水谷洪水灾害的调查报告说，洪水损坏的幅度取决于流配置。蜿蜒的溪流通过狭窄的山谷在山区盆地运行。洪水损害围绕弯曲的狭窄顶点严重。另一方面，围绕宽尖端的损失很严重。从这个角度来看，弯曲顶点的流宽度集中于。进行双曲面化合物通道的实验，以研究通道宽度对洪流的影响。可视化水表流，测量水位。通道宽度影响水表面速度和分歧的大小，这意味着银行侵蚀的规模可能是差异。在窄顶点的情况下，幅度很大。另一方面，在宽顶点的情况下，幅度很小。这意味着洪水损坏可以通过实验结果来解释。结果，应该考虑到适当的河流宽度，以减少流谷中的洪水损失。

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