长江中游新洲鹅头分汊河段近期航道条件稳定性分析  

Stability analysis on recent waterway condition in Xinzhou goose-neck braided reach at middle Yangtze River

作　　者：陈立[1] 陶铭[1] 平妍容 郝婕妤 

机构地区：[1]武汉大学水资源与水电工程科学国家重点实验室,湖北武汉430072

出　　处：《水运工程》2013年第12期121-125,共5页Port & Waterway Engineering

基　　金：黄金水道通过能力提升技术重大课题资助项目(201132822430)

摘　　要：鹅头型分汊河段由于其洲滩多变,航道条件不稳定。依据实测河道地形资料,分析长江中游新洲鹅头分汊河段近期的冲淤调整。结果表明:由于航道整治工程等的实施,在一定程度上稳定了河道边界条件,新洲鹅头分汊河段近期保持了新洲和鸭儿洲心滩将河道分为三汊的格局,各洲体基本稳定,主支汊地位短期不会发生较大调整,但随着三峡蓄水引起的上游来沙的减少,鸭儿洲心滩以及新洲洲头以及河道边界将会发生进一步变形调整。须加强分析,并适时采取相应措施。The evolution of sand bars and shoals in goose-neck braided reach results in unstable waterway condition. Based on the field topographic data, we analyze the recent scouring-silting adjustment in the Xinzhou goose-neck braided channel. The results revealed that the implementation of the channel regulation works stabilizes the channel boundary condition; The goose-neck reach maintains the plane pattern that Xinzhou and Ya＇erzhou river islands partition the river into three branches; The sand bars and shoals are basically stable, and obvious adjustment of the status of the branches will not occur in the future. However, since the decrease of the sediment transportation from upstream caused by the impoundment of the Three Gorges project, the deformation of the head of Xinzhou and Ya＇erzhou river island, together with the river boundary will proceed, which requires more analysis and implementing appropriate measures timely.

关 键 词：新洲鹅头分汊河段 冲淤调整 边界条件 航道整治 

分 类 号：U617[交通运输工程—船舶及航道工程]