长江中游枝江—江口河段河床演变与航道整治思路

在已有研究成果的基础上,充分收集长江中游枝江—江口河段近年来实测水文地形资料,分析了该河段河床演变特点、碍航特性和航道存在的主要问题;再结合模型研究成果,对该段河道及航道演变趋势进行预测。在此基础上,结合该段航运发展需求,分析了该段进行航道整治工程建设的必要性,根据该段浅滩碍航特征和航道整治目标,提出航道整治思路和初步方案设想。研究得到的河床演变、碍航特性及方案比选成果可为下一步系统整治提供参考借鉴。

River evolution and waterway regulation of Zhijiang-Jiangkou section at midstream of the Yangtze River

Based on the existed research results and field data, this paper analyzes the recent evolution regularity, navigation-obstruction characteristics, as well as main problems of the waterway, and then predicts the river evolution trend according to the model results. Firstly, the necessity of waterway regulation project is analyzed.According to the development demands of the reach, this paper discusses the necessity of waterway regulation in the reach, and then proposes the regulation ideas and tentative scheme under consideration of the navigation-obstruction characteristics and waterway regulation targets. The research results concerning the bed evolution, navigationobstruction characteristics and scheme comparison and selection may serve as reference for the follow-up systematic regulation engineering.