长江中游新洲汇流口浅滩演变影响因素分析及治理问题初探

分析新洲水道两汊汇流口形态特征及汇流口浅滩年内年际间变化特征,探讨浅滩出浅变化的影响因素。结果认为:新洲南汊汇流顶托对汇流口浅滩的影响是存在的,但不是主要因素,新洲南水道上深槽走向以及北水道入流的变化是汇流口浅滩出浅的主要原因。在此基础上,对汇流口浅滩治理思路进行探讨。

Influencing factors of shoal evolution and regulation of Xinzhou confluence in the middle Yangtze River

This paper analyzes the morphological characteristics of Xinzhou confluence and features of within-the-year and inter-annual variation of the confluence shoal,and discusses the influential factors of the shoal appearing.It is concluded that the impact from the lockup of the south inlet’s confluence on the shoal does exist,but it’s not the major factor;The trend of the upstream deep trough of Xinzhou south inlet and the change of the north inlet’s incoming flow are the main reasons for the shoal appearing at the confluence.Based on the analysis,this paper investigates the regulation idea for the shoal regulation.