长江中游藕池口水道二期工程治理方案及效果

藕池口水道是长江中游重点碍航浅水道之一,航道整治一期工程实施后,初步稳定了河道滩槽格局,枯水航道条件有所改善。但是,一期工程并未能充分控制航槽边界、岸边界及主要滩体,航道仍然存在不稳定因素,因此,尚须实施二期整治工程。对二期工程建设提出的2个设计方案分别进行模型试验研究,分析其工程整治效果,为设计方案的选取提供科学依据。

Regulation scheme and effect of the second phase project of Ouchikou waterway on the middle reach of the Yangtze River

The Ouchikou waterway is one of navigation obstruct rivers on the middle Yangtze River.The first phase of the project initially stabilizes the pattern of the breach and slot through,which ensures excellent channel condition during the dry period.However,the first phase of the project may not adequately control the navigation trough boundary,and unstable factors exist in the channel river,so it is necessary to implement the second phase of the project.Two schemes for the second phase of the project are presented,which are studied respectively by physical modeling.The comparison and analysis for the engineering effects may contribute to choosing the engineering scheme.