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本文对小浪底水库异重流的形成条件和演进过程中的厚度、流速、含沙量、 D50、洪峰传播等要素进行了分析.使用Fr值判断了2001-2003年潜入点位置:分析了八里胡同河段对异重流演进的影响程度;率定了异重流洪峰演进的经验关系;阐述了异重流与烂泥层水沙交换的机理、影响因子及沿程变化规律。
In this paper, the forming conditions of gravity flow and the thickness, flow velocity, sediment concentration, D50 and flood propagation in the Xiaolangdi Reservoir are analyzed. The Fr value is used to determine the location of the infiltration point in 2001-2003: The degree of influence of the river section on the evolution of heavy gravity flow, the empirical relationship between the flood peak evolution and the evolution of heavy gravity flow, the mechanism of the exchange between water and sediment of the heavy gravity flow and the sludge layer, the influencing factors and the variation rules along the distance.