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本文从床沙、推移质及悬移质互相交换、衔接的物理图形出发，在力学、随机及紊动扩散分析基础上，提出了颗粒跃移及推移质、悬移质和全沙统一的新的非均匀沙挟沙力公式．文中公布了新近试验取得的５７组非均匀沙挟沙力水槽资料，分析提出了反映混合沙中粗细颗粒互相影响的系数的关系，提出了悬移层与推移层交界面高度及浓度预报新的初步关系．应用本文提出的挟沙力系列公式计算验证了大量天然河流及水槽实测分组和总挟沙力资料，计算与实际符合较好．
Based on the mechanics, stochastic and turbulent diffusion analysis, this paper presents a new theory of particle migration, pluton transport, suspended matter and sediment reunification The non-uniform sand sediment-carrying sand formula. In this paper, 57 sets of non-uniform sediment-sand-sinking flume data obtained from the recent experiments are reported. The relationship between the coefficients of interaction of the coarse and fine particles in the mixed sand and the forecast of the height and concentration of the interface between the suspended layer and the overburden are proposed Preliminary relationship. Applying the series of sediment carrying capacity formula proposed in this paper, the data of actual measured grouping and total sediment carrying capacity of a large number of natural rivers and sinks are verified, which is in good agreement with the actual calculation.