摘要
本文列举了以往关于长江上游河段河床卵石起动流速表达式,然后就这些表达式进行了对比分析。通过分析,对河床卵石的补给条件可能影响卵石起动流速的机理,结合实例作了阐述;对长江上游河床卵石起动流速表达式中有关参数的表达方式及其应采用的数值提出了讨论意见。
A great deal of research achievements in starting velocity of the bed gravel in upper Yangtze River has been obtained in the past. In this paper, a brief introduction of these results is given and the presented formulas of the starting velocity are analysed.On the basis of previous analysis, the paper deals with mechanism of the influence of supplement conditions on the starting velocity. Moreover, proposals for the expression of the parameters in the formula of the staring velocity and the values which should be adopted are put forward
出处
《长江科学院院报》
CSCD
北大核心
1989年第2期1-10,共10页
Journal of Changjiang River Scientific Research Institute
