白鹤滩枢纽变动回水区设计最低通航水位的确定  

Determination of lowest design navigable water level in fluctuating backwater area of Baihetan multipurpose dam project

作　　者：陈婷婷 杨涛[2] CHEN Tingting;YANG Tao(Sichuan Communication Surveying&Design Institute,Chengdu 610017,China;Sichuan Water Resources and Hydroelectric Investigation&Design Institute,Chengdu 610072,China)

机构地区：[1]四川省交通勘察设计研究院有限公司,四川成都610017 [2]四川省水利水电勘测设计研究院,四川成都610072

出　　处：《水运工程》2023年第8期134-138,共5页Port & Waterway Engineering

摘　　要：以金沙江白鹤滩库区为例,对于老君滩滩王所在的变动回水段河床比降大,无法采用整治措施达到规划航道等级的要求,传统的用保证率流量和坝前水位组合方案不符合实际航运要求及通航情况。探讨采用类比溪洛渡运行的方法,并考虑白鹤滩回水及整治措施的影响,综合确定设计最低通航水位。同时对天然情况和整治措施后的通航保证率分段计算,以供航道整治决策。Taking Baihetan Reservoir area of Jinsha River as an example,for the fluctuating backwater section of Laojuntan,the river bed gradient is large,and the regulation measures can not be adopted to meet the requirements of the planned waterway grade.The traditional combination scheme of guaranteed discharge and water level in front of dam does not accord with the actual shipping requirements and navigation conditions.The method of simulating the operation of Xiluodu is discussed,and the design minimum navigable water level is determined comprehensively considering the influence of backwater of Baihetan and the regulation measures.At the same time,the natural condition and the navigation guarantee rate after the regulation measures are calculated in sections for the navigation channel regulation decision.

关 键 词：设计最低通航水位 通航保证率 类比法 变动回水区 

分 类 号：U612[交通运输工程—船舶及航道工程]