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A method of calculating sediment concentration and discharge for large range mixtures is presented. An attempt is made to determine that part of hydraulic radii which is responsible for sediment discharge rate for granular beds with channel configurations. A comparison of theoretical calculations using the proposed method with field (nature) measurements and with results of the H. Einstein 1950 method and its modification is made.
I. V. Egiazaroff (Thu,) studied this question.