Model and Prototype Results for a Sinuous Two‐Stage River‐Channel Design
Model and Prototype Results for a Sinuous Two‐Stage River‐Channel Design
复制标题
蜿蜒两阶段河道设计的模型和原型结果
DOI：
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发表时间：
2001
期刊：
影响因子：
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通讯作者：
C. Naish
中科院分区：
文献类型：
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作者：
R. Sellin;C. Wilson;C. Naish
位于英国汉普郡的黑水河（River Blackwater）的一段重新定位的长度被设计和建造为一个双弯曲的两级通道。这是一个现场试验场，配有水位和流量记录设备，用于不断分析其水力和生态性能。初步的水力数据，这是从现场收集的，分析和比较的数据从两个水力模型，这是建立在相同的设计，但在不同的比例。从原型，1/5和1/25比例模型的结果进行检查的比例关系和规模效应。然后以2：1的垂直比例放大重建小比例模型，并对结果进行评估。讨论了小比例尺河工模型表面粗糙度的选择方法。
A relocated length of the River Blackwater in Hampshire, UK, has been designed and constructed as a doubly‐sinuous, two‐stage channel. This has been established as a field test site with water level and discharge recording equipment for an ongoing analysis of its hydraulic and ecological performance. Preliminary hydraulic data, which were collected from the site, are analysed and compared with data from two hydraulic models which were built to the same design but at different scales. Results from the prototype, the 1/5, and 1/25 scale models are examined for scaling relationships and scale effects. The small‐scale model was then reconstructed with a 2:1 vertical‐scale exaggeration, and the results were assessed against the others. Methods for the selection of appropriate surface roughness for small‐scale river models are discussed.