【摘要】 通过物理模型试验研究了极细颗粒泥沙对浑水水流输沙能力的影响。结果表明,在输沙平衡的浑水水流中加入极细沙,可以有效地提高水流的输沙能力。但是随着流量的增加,单位极细沙含量提高的浑水输沙能力是递减的。最后,比较了实验值与各挟沙力公式计算结果,并对极细沙提高水流输沙能力进行了解释。更多还原

【Abstract】 The influence of extremely fine particle sediment on sediment transport capacity of muddy water was studied by physical model test. The results show that sediment transport capacity in the muddy water flow with equilibrium of sediment transport can be effectively improved by adding extremely fine particle sediment. However, the capacity of muddy water to be increased by extremely fine particle sediment concentration is decreasing with the increase of flow. At last, the experimental values are compared with the calculation results of sediment-laden capacity formula, and the explanation for the improvement of sediment transport capacity by extremely fine particle sediment is given.更多还原