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中小型水库的开敞式岸边溢洪道多数都不设闸门,堰顶以上的库容只能滞洪不能蓄水兴利。为了增加兴利库容,溢洪道常采用较长的溢流前缘,达到减少溢流水深丑。的目的。此外,出于减少进口的工程量,设计人员常要顺应现场地形的变化,把进口布置成缩窄型式。本文介绍一种径向缩窄式进口的水力设计方法,它是在试验的基础上得到的。溢流堰的平面曲线,采用国外科研成果[参考资料1],其余轮廓尺寸由我所模型试验选择。这种进口型式具有如下优点: ①溢流水深浅L/H_0可达到66(L-堰顶长度)[参考资料1];
Most small and medium-sized reservoirs have open sluice spillways without gates and the reservoir above the weir can only retain stagnant water for enrichment. In order to increase the profit and loss of storage, spillways often use longer overflow front, to reduce the depth of overflow water ugly. the goal of. In addition, due to the reduction in the number of projects imported, designers often have to adapt to changes in the site landscape to reduce the size of imports. This article presents a radial narrowing of the import of hydraulic design method, which is based on the test obtained. Weir plane curve, the use of foreign scientific research [Ref. 1], the rest of the outline size by my model test choice. This type of import has the following advantages: ① overflow water depth L / H_0 up to 66 (L-crest length) [Reference 1];