长江扬中河段太平洲汊道滩槽演变趋势研究  

Study on evolution trend of Taipingzhou channel in Yangzhong reach of the Yangtze River

作　　者：朱明成[1] 左利钦[1] 季荣耀[1] ZHU Mingcheng;ZUO Liqin;JI Rongyao(Nanjing Hydraulic Research Institute,Nanjing 210029,Jiangs)

机构地区：[1]南京水利科学研究院,江苏南京210000

出　　处：《江苏水利》2018年第7期58-61,65,共5页Jiangsu Water Resources

基　　金：江苏省水利科技项目(2015083)

摘　　要：以长江扬中河段太平洲汊道为研究对象,在归纳总结河道滩槽系统调整规律的基础上,分析本河段未来的演变趋势。滩槽演变分析和数模计算结果表明:河段总体河势呈现微冲状态并将保持相对稳定,崩岸现象将逐步减少,而落成洲段和口岸直段等部分区段河床仍会出现较大冲淤变化,各类涉水工程建设对河床演变的影响日趋增强。研究结果可为径潮流河段滩槽演变预测以及坍江灾害预警提供依据。Taking Taipingzhou channel of the Yangtze River as the research object, based on summarizing the adjustment rules of the river channel system, the future evolution trend of the river section was analyzed. The analysis of riverbed evolution and numerical simulation results showed that the overall river regime reached a micro-impingement state and would remain relatively stable. The collapse phenomenon would gradually decrease, while the riverbed would continue to appear large erosion and siltation changes in some sections. The impact of various types of wading project construction on the evolution of the riverbed had been increasingly strengthened. The research results could provide evolution prediction of the tidal channel and early warning of river embankment collapse disaster.

关 键 词：扬中河段 江堤坍塌 河势变化 数模计算 演变趋势 

分 类 号：TV147[水利工程—水力学及河流动力学]