Flow Surface Construction at the Bottom in No.2 Diversion Tunnel of Double Arch Dam of Xiaowan Hydropower Station

@inproceedings{Longsheng2009FlowSC,
  title={Flow Surface Construction at the Bottom in No.2 Diversion Tunnel of Double Arch Dam of Xiaowan Hydropower Station},
  author={Zou Long-sheng},
  year={2009}
}
Xiaowan Hydropower Station locates in the semi-tropical region of Yunnan Province with higher temperature and verticalchanges.The concrete arch dam quality is controlled by rigid temperature when construction,and there are several tunnels.The flow speed in the diversion tunnel is rather high,so that the request smoothness of the flow surface isvery rigid,too.During construction,the vibrating beam was used for flow surface tamping,the blade glazing machine also used for polishing the flow… CONTINUE READING

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