长江中游大马洲水道航道整治工程效果分析

大马洲水道河床演变主要受到河道入流条件、关键洲滩岸线变化的影响,近期出现了不利的航道变化。针对上述问题实施的已建航道整治工程基本上取得了预期的整治效果,但也存在治理时机滞后、关键部位工程缺失、动态设计调整不足等诸多问题。在后续的航道治理和维护工作中,应建立跟踪观测分析工作机制,及时准确地把握河道最新动态,利用数模和物模技术手段,预测后续变化并适时实施和动态调整航道治理工程措施。

Effect analysis of Damazhou waterway regulation project in downstream of the Yangtze River

The fluvial process of Damazhou waterway is mainly affected by inflow conditions and shoreline changes of crucial river beaches,and adverse channel changes occurred recently.The channel regulation project already implemented aiming at the above problem has achieved expected regulation results but there are still problems such as lagged regulation timing,the lack of key parts of the project,and the insufficiency of dynamic design adjustment.In the follow-up waterway regulation and maintenance work,a tracking observation and analysis mechanism should be established to accurately grasp the latest channel conditions timely,and numerical and physical modeling techniques should be adopted to predict subsequent changes and to implement timely or to adjust dynamically channel regulation engineering measures.