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1. Risky dam analysis and stability evaluation of reinforcement | |||
Dong Liang | |||
Hydraulic Engineering 17 March 2009 | |||
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Abstract:Shortly after construction of the Shuanghe Arch Dam, substantial perforative cracks emerged, and these cracks would threaten the stabilization of the dam. A three dimensional model was established and the finite element analysis was employed to investigate the formation cause of the cracks. From the stress sensitive analysis in different types of loading case, the results show: The load combination condition of normal water level and temperature drop is most dangerous, and the temperature drop is the main external cause of crack growing. Four policies were applied to reinforce the arch dam: Thickening the dam body between 491.70~525.00m; consolidation grouting in downriver foundation; downriver drainage system; prestressed anchor in downriver slope. The finite element method is used to analyse the displacement, stress and the safety degree of abutment with comparing the reinforced dam to that without reinforcement. The results indicate that the reinforced arch dam is safe and stable. | |||
TO cite this article:Dong Liang. Risky dam analysis and stability evaluation of reinforcement[OL].[17 March 2009] http://en.paper.edu.cn/en_releasepaper/content/30379 |
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