仙鹅水库工程坝址选择及枢纽工程布置

Dam Site Selection and Key Project Arrangement of Xian’e Reservoir Project

在炼洞河沙址盆地和炼洞盆地之间的河段内进行仙鹅水库工程选址,经综合比较,选择位于鸡足山二级电站上游100m处的Ⅱ坝址进行建库开发利用,仙鹅水库总库容为1140.3×104m3,工程任务为“以农村人畜安全供水和农田灌溉用水为主,兼有下游防洪保护作用”。枢纽工程主要建筑物由大坝、溢洪道、输水(导流)隧洞组成,库尾灰岩区采用隔水坝将灰岩段隔除。

In this paper,Xian’e Reservoir Project is selected in the reach of Liandong River between Shazhi Basin and Liandong Basin.After comprehensive comparison,the II dam site located 100m upstream of the secondstage power station in Jizu Mountain is selected for reservoir construction,development and utilization.The total reservoir capacity of Xian Goose Reservoir is 1140.3×104 m3,the main task of the project is to provide safe water supply for rural people and livestock and irrigation water for farmland,and to protect downstream flood control.The main structures of key project are composed of dams,spillways and water conveyance(diversion)tunnels.Limestone section is separated by water barrier dam in limestone area at tail of reservoir.