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本文以“制紊假说”为理论基础 ,从能量平衡出发 ,考虑了浑水相对粘滞性、上游来水来沙条件及床沙级配等因素对水流挟沙力的不同影响 ,建立新的非均匀沙分组水流挟沙力公式。收集天然河道实测水文资料 ,对公式中的系数进行率定 ,并验证所建立的公式。结果表明 ,使用本文建立的非均匀沙水流挟沙力计算公式 ,能计算一般含沙量及高含沙水流的挟沙能力 ,准确性较高
Based on the theory of “making turbulence hypothesis”, taking the energy balance as a starting point, we consider the different influences of the relative viscosity of muddy water, incoming water and sediment conditions and sediment concentration on sediment-carrying capacity and establish a new Sediment carrying capacity formula of non - uniform sand flow. Collect the measured hydrological data from natural channel, rate the coefficients in the formula, and verify the established formula. The results show that the sediment carrying capacity of the non-uniform sediment flow established in this paper can be used to calculate the silt-carrying capacity of normal sediment concentration and high-concentration water flow with high accuracy