Research on Reinforcement of Spiral Case during Capacity-Increasing Improvement for Gezhouba Hydropower Station

Abstract:

The stress and deformation of spiral case of Gezhouba Hydropower Station under three working conditions such as before the capacity-increasing improvement, during the disassembly of the spiral case and after the capacity-increasing improvement are calculated by three dimensional FEM..the reinforcement plan of spiral case is proposed based on the above calculation results and also analyzed by three dimensional FEM. Study on the results of different working conditions mentioned above shows that the unit disassembly scheme is feasible and the reinforcement plan is effective.

• Periodical: Applied Mechanics and Materials (Volumes 170-173)
• Pages: 2089-2094
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.170-173.2089
• Online since: May 2012
• Authors: Xian Jun Wang
• Keywords: Capacity-Increasing Improvement, Gezhouba Hydropower Station, Reinforcement of Spiral Case

References

[1] Fang Zhen-Guo, Three direction FEM analysis of concrete spiral case of Erjiang power house of Gezhouba Water Control Project [J], Yangtze River. 1979,(2):22-29. (In Chinese)

[2] Zhao Wen-Ting, Preliminary analysis and reinforcement treatment of offset accidents of turbine spiral case of flood control self-power station [J], Water Resources and Hydropower Engineering. 1997,28(7). 40-43.(In Chinese)

[3] Ai You-Zhong, Lu Jin-Yu, Review of unit capacity-increasing improvement of Gezhouba Hydropower Station [J], Water Power.2006,32(1):80-83. (In Chinese)