镇扬河段和畅洲汊道近期河势演变分析  

Analysis of recent river regime evolution in Zhenyang Reach and Changzhou Branch

作　　者：凌金平 LING Jinping(The Yangtze River Channel Management Office of Zhenjiang City,Zhenjiang 212002,China)

机构地区：[1]镇江市长江河道管理处,江苏镇江212002

出　　处：《江苏水利》2021年第9期66-69,共4页Jiangsu Water Resources

摘　　要：长江镇扬河段位于长江下游江苏省境内,上起三江口,下迄五峰山,自上而下分为:仪征水道、世业洲汊道、六圩弯道、和畅洲汊道以及大港水道,河道演变剧烈。主要从分流比、平面形态及河道深槽变化情况,对和畅洲口门控制工程、12 m深水航道潜坝2项工程建成后对该汊道河势演变进行分析。结果表明,2项控制工程对和畅洲汊道左右汊分流比的调节作用明显,但同时也引起了该汊道河势的变化调整,从而出现部分岸段滑塌崩岸,针对目前河势变化情况提出建议。The Zhenyang Reach of the Yangtze River is located in the lower reaches of the Yangtze River in Jiangsu Province.It rised from the Three River Estuary to the Wufeng Mountain.From top to bottom,it's divided into Yizheng Waterway,Shiyezhou Branch,Liuwei bend,Changzhou Branch and Dagang waterway.The river regime evolution of the braided channel after the completion of the Hechangzhou estuary control project and the 12 m deep-water channel submerged dam was analyzed mainly from the aspects of the distributary ratio,plane shape and the change of channel depth.The results showed that the regulation of the two control projects on the diversion ratio of the left and right branches of the Hechangzhou branch was obvious,but it also caused the change and adjustment of river regime of the branch,resulting in the collapse and bank collapse of some bank sections.Suggestions were put forward for the current river regime change.

关 键 词：河道整治 分流比 河势演变 深槽变化 

分 类 号：TV882.8[水利工程—水利水电工程]