泥沙颗粒相对隐蔽度理论分析及其应用

Theoretical Analysis on Sediment Relative Hidden Degree and Its Application

泥沙颗粒相对隐蔽度对泥沙的起动、输移等研究均有重要意义。简要阐述了作者近年来在相对隐蔽度理论分析及其应用方面的部分成果,包括:基于不同维度的相对隐蔽度及隐蔽度的分布规律;基于隐蔽度分析的底坡、岸坡及床面上泥沙起动流速;基于隐蔽度分析的宽级配非均匀沙起动特性Shields带状曲线成因分析以及基于隐蔽度分析的泥沙颗粒水下内摩擦角试验等相关研究,最后对泥沙颗粒相对隐蔽度的实验研究提出了展望。

Relative hidden degree is of far-reaching importance to the research of incipient motion and transportation of sediment particles.This paper presents an overview on some of the research achievements by the author in the theory and application of sediment relative hidden degree,including the latest researches covering the different dimensionality of relative hidden degree,the regularity of its distribution,incipient velocity of sediment on bed slope and bank slope,demonstration on incipient characteristic of wide grading non-uniform sediment,analysis on Shields fillet curve,and experiment on underwater internal friction angle.Finally,prospect of its experiment research was looked forward.