The Evolution Characters Of Cross-section In Lower Yellow River And Discussion Of The Adjustment Rule

Based on model experiment and a large amount of observed data of Lower Yellow River the adjustive characteristics of cross section in Lower Yellow River was obtained in this paper, and the synthetical influence of discharge,sediment concentration,discharge homogeneity parameter(a new concept gived in this paper) and longitudinal slope to cross section was analysised in this paper. Lastly a formula of main channel width of Lower Yellow River was obtained.Following is the major content of the paper:1. Existing study about cross section was summed up in the paper. It can be grouped into empirical formular, extremal hypotheses, and rational or mechanistic approaches. It's applicability was verified by observed data of Lower Yellow River.2. The relationship between the relative equilibrium cross section and...