Journal
JOURNAL OF HYDRAULIC RESEARCH
Volume 38, Issue 6, Pages 427-434Publisher
INT ASSN HYDRAULIC RESEARCH
DOI: 10.1080/00221680009498296
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A correction factor has been developed in this paper to account for the hiding and exposure mechanism of;nonuniform sediment transport. This factor is assumed to be a function of the hidden and exposed probabilities, which are:,stochastically related to the size and gradation of bed materials. Based on this concept, the formulas to calculate the critical shear stress of incipient motion and the fractional bed-load and suspended load transport rates of nonuniform sediment have been established. These formulas have been tested against a wide range of laboratory and field data and compared with several other existing empirical methods. The predictions by these newly proposed formulas are very good.
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