长江南京以下12.5 m深水航道治理工程口岸直水道整治工程效果对比分析  

Comparative analysis on the effect of Kouanzhi waterway regulation project of 12.5 m deepwater channel project in the Yangtze River below Nanjing

作　　者：付桂[1,2] FU Gui(Yangtze Estuary Waterway Administration Bureau, Ministry of Transport, Shanghai 200003, China;Shanghai Changsheng Engineering Management Co. Ltd., Shanghai 200137, China)

机构地区：[1]交通运输部长江口航道管理局,上海200003 [2]上海长升工程管理有限公司,上海200137

出　　处：《水道港口》2020年第5期564-570,共7页Journal of Waterway and Harbor

基　　金：国家重点研发计划资助项目(2017YFC0405400)。

摘　　要：为达到长江口深水航道上延至南京的目标,长江南京以下12.5 m深水航道二期工程在口岸直水道实施航道整治工程,主要包括落成洲头部潜堤及丁坝、右汊护底带;鳗鱼沙潜堤和护滩带。文章根据口岸直水道航道整治工程实施后的实测数据,与设计阶段数模物模预测结果进行对比分析,综合分析工程前后在河势变化、流场变化、汊道分流比变化、航道维护量等方面的实现情况。结果表明:工程实施以后,达到了预期的航道整治目标,工程治理方案合理,航道整治效果符合预期,可为长江中下游潮汐分汊河段航道整治提供参考。In order to reach the goal of extending the deepwater channel to Nanjing,the navigation channel regulation projects were carried out at Kouanzhi waterway by the phaseⅡof 12.5 m deepwater channel project in the Yangtze River below Nanjing.It mainly includes submerged dike at the head of Luocheng Island,groyne and right branch bottom protection belt,Eel sand submerged dike and beach protection belt.Based on the measured data after the implementation of the channel regulation project of Kouanzhi waterway,this paper makes a comparative analysis with the predicted results of the digital physical model in the design stage,and comprehensively analyzes the realization of the river regime change,flow field change,variation of branch diversion ratio,channel maintenance volume and other aspects before and after the project.The results show that after the implementation of the project,it has achieved the expected goal of channel regulation,the project regulation scheme is reasonable,and the effect of channel regulation is in line with the expectation.It can be used as a reference for channel regulation of tidal branches in the middle and lower reaches of the Yangtze River.

关 键 词：长江南京以下12.5 m深水航道 口岸直水道 航道整治 整治工程 效果分析 

分 类 号：U617[交通运输工程—船舶及航道工程] TV147[交通运输工程—船舶与海洋工程]