桥巩水电站过水土石围堰与橡胶坝组合围堰设计  

Design of Cofferdam Combined by Overflow Earth-rock Cofferdam and Rubber Dam for Qiaogong Hydropower Station

作　　者：李小莘[1] 

机构地区：[1]广西电力工业勘察设计研究院,广西南宁530023

出　　处：《水力发电》2010年第1期23-25,共3页Water Power

摘　　要：桥巩水电站二期上游围堰采用过水土石围堰加堰顶橡胶坝的组合形式,汛期大洪水来临时,橡胶坝坍坝增大河道行洪断面行洪,消除了施工期淹没赔偿问题;枯水期及汛期一般流量情况下,橡胶坝升坝维持较高的上游水位进行通航和发电,获取了较大的经济效益。The phase II upstream cofferdam of Qiaogong Hydropower Station is combined with an overflow earth-rock cofferdam and a rubber dam.In flood season,the rubber dam will be deflated for increasing the discharge capacity of river,and then can eliminate the flood damages in construction period.In dry season and other season with low flow,the rubber dam will be aerated to keep a higher upstream water level for navigation and power generation.The design of cofferdam has a greater economic benefit.

关 键 词：过水土石围堰 橡胶坝 设计 桥巩水电站 

分 类 号：TV551.36[水利工程—水利水电工程]