长江下游福姜沙航道治理起步工程方案研究

结合福姜沙河段水流动力特性和河床演变特点,在福姜沙河段布置不同的治理工程方案,通过数学模型、物理模型等手段分析工程效果,在双涧沙体实施工程措施综合整治效果最佳,福姜沙航道治理必须从稳定双涧沙沙体出发,守护双涧沙是福姜沙深水航道建设的关键性河势控制工程.对双涧沙守护工程进行不同平面形式、高程方案进行了比选,得出福姜沙河段航道治理工程基础性方案.

On initial engineering schemes for training of Fujiangsha channel downstream the Yangtze River

In combination with the flow dynamic characteristics and riverbed evolution features of Fujiangsha reach, it is supposed to implement different training schemes at the channel segment. Based on the analytical results from mathematical modeling and physical modeling, a best comprehensive training effect can be obtained through implementing engineering measures to the sand body at Shuangjiansha segment, which shall be firstly stabilized for the training of Fujiangsha channel. Protection of Shuangjiansha reach is a key river regime control project for the development of Fujiangsha deepwater channel. This paper proposes a basic engineering scheme for the channel training at Fujiangsha reach by comparing schemes of different layout and elevation for the protection of Shuangjiansha reach.