径流式电站通航水流条件优化措施研究  

Optimization of Navigation Flow Condition of Run-off Hydropower Station

作　　者：段宛玥 董俊君 陈立华[1] DUAN Wan-yue;DONG Jun-jun;CHEN Li-hua(College of Civil and Architectural Engineering,Guangxi University,Nanning 530004,China;Yunnan Infrastructure Investment Co.,Ltd,Kunming 650000,China)

机构地区：[1]广西大学土木建筑工程学院,南宁530004 [2]云南建设基础设施投资股份有限公司,昆明650000

出　　处：《中国农村水利水电》2021年第6期181-186,共6页China Rural Water and Hydropower

基　　金：国家自然科学基金项目(51669003)。

摘　　要：在河流上修建水利枢纽,需要考虑其防洪、发电、通航、灌溉等多方面的综合效益。针对通航方面分析,船闸是布置在枢纽上的通航建筑物,由引航道与天然河道连接。由于引航道口门区及连接段受边界突变影响,水流条件复杂,常难以满足通航要求。根据某水电站工程布置、河道特性以及通航要求,在原设计方案的基础上,设计四种疏挖方案,在枢纽下泄流量为350、1570.4、6200、12000 m^(3)/s 4种条件下,运用数学模型对船闸口门区水流条件展开论证,得出疏挖方案四能够满足引航道下游口门区连接段水流条件及Ⅲ级航道通航要求的结论,研究成果可为径流式水电站通航条件优化设计及通航论证提供依据,对类似工程具有指导意见。To build a water conservancy project on a river,it is necessary to consider its comprehensive benefits in flood control,power generation,navigation,irrigation and so on.According to the analysis of navigation,the shiplock is a navigable building arranged on the hub,and the flow situation of the diversion channel should meet the navigation conditions.Among them,the gate area is the connecting section of the channel and the natural waterway,which is affected by the boundary mutation and so on,and the flow condition is complicated,which often does not meet the navigation requirements.In this paper,according to the project layout,river characteristics and navigation requirements of the run-off hydropower station,four dredging schemes are designed on the basis of the original design scheme,Under the conditions of discharge of 350,1570.4,6200 and 12000 m^(3)/s,the flow conditions of the lock entrance area are demonstrated by the mathematical model,and the conclusion that the fourth dredging scheme can meet the flow conditions of the downstream entrance area of the approach channel and the navigation requirements of class Ⅲ waterway is obtained.The research results in this paper can provide the optimal design and navigation demonstration of navigation conditions of run-off hydropower stations,and provide reference for similar projects.

关 键 词：径流式电站 通航水流条件 疏挖 

分 类 号：TV61[水利工程—水利水电工程]