论文部分内容阅读
通过对大量水槽试验资料的分析，认为在水流挟沙力计算公式中应该考虑反映泥沙级配影响的因子Ｄ２５０／（Ｄ２５Ｄ７５），并由此推导了新的水流挟沙力计算公式．利用水槽试验资料及黄河下游实测资料对该公式进行了验证，验证结果表明，泥沙级配因子Ｄ２５０／（Ｄ２５Ｄ７５）能提高水流挟沙力的计算精度．
Based on the analysis of experimental data of a large number of tanks, it is considered that the factor D250 / (D25D75) that reflects the influence of sediment gradation should be considered in the calculation formula of sediment carrying capacity and a new calculation formula of sediment carrying capacity is deduced. The formula was verified by using the experimental data of the flume and the measured data from the lower reaches of the Yellow River. The results show that the sediment grading factor D250 / (D25D75) can improve the calculating accuracy of sediment carrying capacity.