人民长江Issue(13)：1-4,4.DOI:10.16232/j.cnki.1001-4179.2015.13.001
长江下游镇扬段世业洲汊道演变和整治措施研究
Evolution of Shiyezhou braided channel in Zhenyang reach of lower Yangtze River and regulation works
摘要
Abstract
The plane configuration of Zhenjiang-Yangzhou reach ( Z-Y reach) of Yangtze River is complicated, so the regu-lation is difficult. In terms of the incoming flow-sediment variation, flow diversion of branch, thalweg and sectional factor etc. , the characteristics of recent riverbed evolution of Shiyezhou braided channel in Z-Y Reach of Yangtze River are analyzed. It is discovered that the left branch is developing and the right branch is shrinking gradually. The regulation thought and schemes of Shiyezhou channel and engineering measures are proposed and the physical model test is conducted. The results show that for a single scheme, the larger the project is, the more the flow of left branch would decrease. With the increase of the elevation of the dam top, the control of the flow diversion is strengthened. The analysis shows that the effect of submerged dike scheme is the best.关键词
分汊河道/河床演变/河道整治/世业洲/长江下游Key words
braided channel/river evolution/river regulation/lower Yangtze River分类
建筑与水利引用本文复制引用
朱庆元,刘同宦,丁虎,李元..长江下游镇扬段世业洲汊道演变和整治措施研究[J].人民长江,2015,(13):1-4,4.基金项目
国家自然科学基金项目(51209016,51339001),中央院所基本科研业务费项目(CKSF2013006/HL) （51209016,51339001）
