Author(s): Chen Jie; Sun Shuangke; Guo Jun; Zhou Sheng
Linked Author(s):
Keywords: Huge arch dam; Large-discharge; Flood dissipation; Experimental study
Abstract: In the paper, interfaced with xiaowan Hydroelectric Project, model studies are mainly focused on the layout and type of flood-release facilities in the arch dam. Based on measurements of the mean dynamic water pressure and impact pressure, the fluctuating pressure on bottom plate of plunge pool, and the tail water fluctuation of power plant and so on, the layout and types of flood-release facilities are improved and optimized. By so doing, it is capable to improve the return flow in the plunge pool, which induces the low pressure area, avoid outlet nappes to be adjacent and overlapped, decrease the immersion angle, lower the impact pressure on the bottom plate of plunge pool, and as a whole to meet the design requirements.
Year: 2001