乌东德右岸地下电站进水口布置方案研究

Comparison and Selection of the Water Intake Arrangement Schemes for the Right-bank Underground Powerhouse in Wudongde Hydropower Station

乌东德右岸地下电站布置6台单机容量85万kW水轮发电机组,其进水口有集中布置与"4+2分区"布置两个方案。从地形地质条件、安全风险、运行及施工条件、工程投资等方面对两个方案进行了研判与对比,并在边坡开挖支护设计中采用三维有限差分法对边坡稳定性所用参数的合理性进行了研究,推荐了较优的集中布置方案。

In Wudongde Hydropower Station, six hydro-turbine generator units with 850 MW unit capacity are arranged in the right-bank underground powerhouse. For the water intake arrangement, two schemes, including the centralized arrangement and the ＂4 ＋ 2＂ separated arrangement, are compared considering the topographical and geological conditions, the safety risks, the operation and construction conditions, and the project investment. Also, the slope stability is analyzed with the finite difference method and the design parameters adopted in the design of the slope excavation support are examined. Based on the analysis results, the centralized arrangement scheme is finally selected.