急弯河段新建船闸上游引航道通航条件研究  

Navigation conditions of approach channel upstream of newly built ship lock in sharp bend river section

作　　者：张湛[1] 刘洋[1] 赵凯[2] ZHANG Zhan;LIU Yang;ZHAO Kai(Southwest Research Institute for Hydraulic and Water Transport Engineering,Chongqing Jiaotong University,Chongqing 400016,China;CCCC Water Transport Consultants Co.,Ltd.,Beijing 100007,China)

机构地区：[1]重庆交通大学,西南水利水运工程科学研究院,重庆400016 [2]中交水运规划设计院有限公司,北京100007

出　　处：《水运工程》2024年第7期104-110,116,共8页Port & Waterway Engineering

摘　　要：在急弯河段已建枢纽上新建船闸工程,船闸布置受限因素众多,通航条件复杂。为分析船闸引航道通航水流条件,建立袁河石洲枢纽1:80正态物理模型,开展急弯河段船闸上游引航道通航水流条件试验,对比隔流堤不同长度口门区的流速分布,同时结合自航船模试验分析船闸口门区通航条件。结果表明,延长隔流堤对减小口门区横向流速峰值、改善流态作用明显;隔流堤延长250 m时,石洲船闸上游引航道最高通航流量可达到规范要求的20 a一遇洪水。The construction of a new ship lock project on the existing hub in the sharp bend river section has many restricted factors in the layout of the ship lock and complex navigation conditions.In order to analyze navigation flow conditions of the ship lock approach channel,we establish a 180 normal physical model of the Yuanhe Shizhou hub,and conduct tests on navigation flow conditions of the upstream approach channel of the ship lock.Then we compare the flow velocity distribution in the entrance area of different lengths of the separation dike,and analyze navigation conditions of the entrance area of the ship lock in combination with self-propelled ship model tests.The results indicate that extending the separation dike has a significant effect on reducing the peak lateral flow velocity in the entrance area and improving the flow pattern.When the separation dike is extended by 250 meters,the maximum navigable flow of the upstream approach channel of Shizhou ship lock can reach the standard requirement of a once-in-20-year flood.

关 键 词：急弯河段 上游引航道 口门区 通航条件 

分 类 号：U612.1[交通运输工程—船舶及航道工程]