碾盘山水电枢纽通航条件优化模型试验研究  

Experimental Research on the Optimization Model of Navigation Condition of Nianpanshan Hydropower Station

作　　者：沈立群 陈雷 SHEN Li-qun;CHEN Lei(Hubei Institute of Water Resources Survey and Design,Wuhan 430070,China)

机构地区：[1]湖北省水利水电规划勘测设计院,武汉430070

出　　处：《中国农村水利水电》2022年第7期61-66,共6页China Rural Water and Hydropower

摘　　要：受枢纽布置、通航建筑物等边界条件的影响,引航道口门及连接段水流条件复杂,常难以满足船舶通航要求,影响通航安全。根据碾盘山水电枢纽工程布置、河道特性,在原有设计方案基础上,针对枢纽下泄流量为500、1200、2700、5000、12000、13500 m^(3)/s 6种条件,建立物理模型试验研究通航水流条件,提出能够满足Ⅲ级航道通航水流条件要求的引航道优化方案;同时进行动床河工模型试验,研究泥沙淤积对船闸上下游引航道通航水流条件影响,并提出减淤措施及建议。研究成果可以为类似水电枢纽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。Due to the restrain of general layout,navigation structures,and other boundary conditions,the flow condition at the entrance area of approach channel is complicated,which hardly meets the navigation requirements.In this paper,based on the layout and river characteristics of Nianpanshan Hydropower Station,under the flow discharge of 500,1200,2700,5000,12000,13500 m^(3)/s,the physical model is used to study the navigation condition.The conclusion that the optimization scheme can meet the flow conditions of the entrance area of the approach channel and the navigation requirements of classⅢclass waterway is obtained.At the same time,movable bed river physical model is tested to analyze the influence of sediment deposition on navigation conditions of the entrance area of approach channel.It is concluded that the navigation can be guaranteed within 10 years after the station running normally,and giving the measures to reduce the sediment deposition.The research results in this paper can provide the optimal design and demonstration of navigation conditions of hydropower stations,and provide reference for similar projects.

关 键 词：水利枢纽 引航道 通航水流条件 减淤措施 

分 类 号：TV61[水利工程—水利水电工程]