摘要
冲积性河流的河型分类及判别是河型研究的重点问题之一,对于河床演变规律的认识及制定河道治理措施具有重要意义。根据已有研究成果,归纳和分析了国内外河型分类和判别方法。针对河型定量判别方法,总结和分析了现有J-Q判别法、河床稳定性判别法、来水来沙条件与河床边界条件判别法的思路、判别指标和标准。采用量纲分析的方法分析了影响河型的主要因素,对比了不同判别式所用参数的特性,最后指出了现有河型判别方法的不足和有待解决的问题。
Alluvial channel patterns and distinguish methods are important for fluvial processes and river regulation. Research results about fluvial patterns and partition methods were reviewed. The distinguish methods were divided as qualitative and quantitative,and the latter is classified into three categories as based on riverbed slope and flow discharge,on riverbed stability,and on flow discharge,sediment concentration and riverbed boundary conditions. Discriminative indicators of the latter were investigated. From the perspective of dimensional analysis,main factors affecting channel pattern were analyzed,and parameters used in each method were compared. Finally,problems about discrimination methods in the future were suggested.
作者
刘贝贝
朱立俊
陈槐
王建中
LIU Bei-bei;ZHU Li-jun;CHEN Huai;WANG Jian-zhong(State Key Laboratory of Hydrology,Water Resources and Hydraulic Engineering,Nanjing Hydraulic Research Institute,Nanjing 210029,China;Hohai University,Nanjing 210098,China)
出处
《泥沙研究》
CSCD
北大核心
2020年第1期74-80,共7页
Journal of Sediment Research
基金
国家重点研发计划项目(2017YFC0405605,2018YFC0407803).
关键词
河型分类
河型判别
河型影响因素
河床稳定性指标
量纲分析
alluvial channel patterns
distinguish methods
influencing factors
riverbed stability index
dimensional analysis
