剑潭双线船闸泄水口及下引航道通航水流条件模型试验  

Experimental study on navigable flow conditions at outlet and downstream approach channel of Jiantan double-line ship lock

作　　者：王召兵[1] 倪自强 陈亮 王蛟[1] 谢春航 WANG Zhaobing;NI Ziqiang;CHEN Liang;WANG Jiao;XIE Chunhang(Southwest Research Institute for Hydraulic and Water Transport Engineering,Chongqing Jiaotong University,Chongqing 400016,China;Chongqing Xike Water Transport Engineering Consulting Co.,Ltd.,Chongqing 402247,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]重庆西科水运工程咨询有限公司,重庆402247

出　　处：《水运工程》2025年第1期76-84,共9页Port & Waterway Engineering

基　　金：国家重点研发计划项目(2023YFC3206105)。

摘　　要：针对剑潭双线船闸存在的平面尺度大、输水强度高,下游共用引航道宽度有限、可能存在回流、斜流等水力学问题,采用比尺1:30的物理模型,对剑潭双线船闸泄水口及下引航道通航水流条件进行模型试验研究。结果表明,剑潭双线船闸泄水口采用部分旁侧泄水形式布置是合理的;增设透空分水墙可以减弱隔流堤堤头回流强度;双线船闸同时泄水时,共用引航道内流速较大,采用错峰泄水或反向运行方式可以将流速降至规范限值以内。采取相应优化措施后,在设计最不利水头组合工况下,剑潭船闸输水系统泄水口及下引航道各项水力指标均能满足设计和规范要求。研究成果可供类似工程参考借鉴。Aiming at the large plane scale,high water transfer intensity,limited width of downstream common approach channel,possible backflow,oblique flow and other hydraulic problems of Jiantan double-line ship lock,a physical model with a scale of 130 is used to study the navigable flow conditions at the outlet of Jiantan double-line ship lock and the downstream approach channel.The results show that it is reasonable to adopt partial lateral drainage arrangement at the sluice of Jiantan double-line ship lock.Adding a permeable water separation wall can weaken the backflow strength of the barrier head.When the double-line lock drains at the same time,the flow velocity in the common approach channel is large,and the flow velocity can be reduced to the standard limit by adopting the mode of cross-peak discharge or reverse operation.After taking the corresponding optimization measures,the hydraulic indexes of the drainage outlet and the lower approach channel of Jiantan Lock water delivery system can meet the design and specification requirements under the design of the most unfavorable head combination condition.The research results can be used as reference for similar projects.

关 键 词：剑潭船闸 物理模型 共用引航道 水流条件 

分 类 号：U641.1[交通运输工程—船舶及航道工程]