论文部分内容阅读
小浪底水库洪水期以异重流形式排细泥沙出库为主,浑水中悬浮的泥沙颗粒细,沉速极为缓慢,其沉降特点可使水库调水调沙调度更为灵活,而且为水库高浓度排沙,进而为下游滩区放淤提供了有利的条件。文章通过对小浪底水库运用以来异重流条件下浑水水库分别在排沙和不排沙情景下沉降规律的探讨,初步建立了动水浑液面沉速公式,为精确模拟小浪底水库对洪水过程响应的三维数学模型以及提出水库蓄水期高效输沙的调度原则等提供技术支撑。
In the flood season of Xiaolangdi Reservoir, the discharge of sediment from the sediment is dominated by heavy gravity. The sediment suspended in the muddy water is fine and its sedimentation rate is very slow. The settlement characteristics of the sediment can make the dispatching of water and sediment more flexible, High concentrations of sediment, and thus provide a favorable condition for the downstream beach area silt. Through the discussion of sedimentation regularity of muddy water reservoirs under different heavy flow conditions since sedimentation and non-sand discharge conditions since the Xiaolangdi Reservoir was used, the formula of sedimentation velocity of muddy water surface is preliminarily established. In order to accurately simulate the sedimentation of Xiaolangdi Reservoir, The three-dimensional mathematical model of response and the proposed principle of dispatching efficient sediment transport during the reservoir water storage period.