水利水电科技进展2018，Vol.38Issue(4)：14-20,7.DOI:10.3880/j.issn.1006-7647.2018.04.003
冲积河流岸滩崩退模式与崩退速率
Study on collapse-retreat patterns and bank erosion rates of alluvial riverbanks
摘要
Abstract
To intensively study and predict the lateral evolution of alluvial rivers,the theories of riverbank erosion and stability are used to discuss the patterns and the rates of riverbank collapse-retreat in this paper.Based on the mechanism of the riverbank collapse-retreat,three types of analysis models are proposed,which are the sinking-slipping failure,the sinking-toppling failure and the falling failure.Combined with the lateral erosion of river banks,the longitudinal scour of river bed and the critical condition of bank failure,the formula of bank erosion rates is derived.The hydrological data and soil properties of the Yellow River and the Yangtze River were used to validate the proposed formula.The results show that the estimated retreat distance and erosion rates are in consistent with the actual erosion rates of the Yellow River and the Yangtze River,indicating that the proposed collapse-retreat patterns and the formula of bank erosion rates are reasonable.关键词
崩退模式/崩退速率/挫崩滑塌/挫崩倒塌/落崩冲刷Key words
collapse-retreat patterns/lateral erosion rate/sinking-slipping failure/sinking-toppling failure/falling failure分类
建筑与水利引用本文复制引用
王延贵,陈吟,陈康..冲积河流岸滩崩退模式与崩退速率[J].水利水电科技进展,2018,38(4):14-20,7.基金项目
国家自然科学基金(51679259,51179208) （51679259,51179208）
