构皮滩水电站导流设计  

Design of Diversion for Goupitan Hydropower Station

作　　者：鄢双红 王真民 

机构地区：[1]长江水利委员会长江勘测规划设计研究院,湖北武汉430010

出　　处：《贵州水力发电》2004年第6期23-25,38,共4页Guizhou Water Power

摘　　要：构皮滩水电站施工导流设计分为3个导流时段,其中工程初期导流采用RCC围堰挡水、导流隧洞泄流的全年导流方式;中后期采用坝体临时挡水、导流隧洞及坝身导流底孔、放空孔、泄洪中孔、表孔及泄洪洞相结合的全年导流方式。初期导流标准按10年一遇洪水设计,相应流量为13500m3/s。导流隧洞左岸平行布置了2条,进口高程分别为430,450m;右岸布置1条,进口高程为430m。导流建筑物级别为4级。Diversion of Goupitan Hydropower Station was divided into three diversion periods in design.In the preliminary engineering period,adopted diversion scheme is the method of diversion around year that damming up is by RCC cofferdams and discharging is by diversion tunnels.And in middle and later periods,the scheme is method of diversion around year that damming up is temporarily by dam body,and discharging is by combining diversion tunnels,spilling tunnel,and diversion bottom orifices,empty orifices,spilling middle and up orifices on the dam body.The preliminary diversion standard is adopted ten-year cycle flood in design,the corresponding flow is 13,500 m^3/s.There are two diversion tunnels on the left bank,floor elevations of the inlets are 430 m and 450 m respectively,and one on the right bank,floor elevation is 430 m.The grade of the diversion structures is Ⅳ.

关 键 词：导流隧洞 构皮滩水电站 RCC围堰 坝身 表孔 导流标准 导流建筑物 进口 方式 工程 

分 类 号：TV551[水利工程—水利水电工程] TV698