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三江口水电站


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国家优秀工程勘察银质奖
省优秀工程勘察一等奖
我国首次采用“T型尾墩”消能工
    三江口水电站位于湖南省石门县境内澧水干流中下游,是一个以发电为主的中型综合性水电工程。1976年开工,1988年建成,2005年左岸扩机工程开工,2007年完工。水库总库容2.2亿m3。砼闸坝,坝高34m。低水头径流式电站,河床式厂房,装机容量112.5MW(5×12.5MW+2×25MW),立式轴流水轮发电机组(5×12.5MW)与灯泡贯流式机组(2×25MW)。灯泡贯流式机组电站,水轮机转轮直径4.7m,最大水头19m,额定水头14.5m,最小水头9m。坝区地质条件复杂,岩溶发育强烈,通过认真勘察,精心设计,成功地解决了坝基岩溶问题,对同类工程建设具有重要借鉴意义。
 
Sanjiangkou Hydropower Station
Second Awards of National Excellent Investigation Project 
First Prize of Excellent Engineering Survey of Hunan Province
The project adopts technology of “T-shape tail pier” energy dissipation for the first time in China.
Sanjiangkou power station is located Shimen County of Hunan Province, at middle and downstream of Lishui River main stream. It is a medium-sized comprehensive hydropower project mainly engaged in power generation. Construction of the Project started in 1976 and accomplished in 1988. In 2005, the project was extended on the left bank and accomplished the extension in 2007. Total reservoir capacity is 220 million m3 . It is built with concrete gravity dam, with crest height 34m, and low-head runoff power station, river bed type powerhouse, with vertical axial turbine and generator units, with installed capacity of 112.5MW(5×12.5MW+2×25MW), Vertical Axial-flow turbine-generator Unit (5×12.5MW)and Bulb Tubular Unit(2×25MW). The bulb tubular turbine units has maximum water head of 19m, rated water head of 14.5m, minimum water head of 9m. The turbine runner’s diameter is 4.7m. The dam area has complicated geological condition and developed Karst. The problem of karst at dam foundation has been successfully resolved through detail investigation and aborative design, which provide important reference for the similar project.
 

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编辑: 来源: 发布时间:2014年08月12日
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