Geomechanics and Engineering

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Displacement aging component-based stability analysis for the concrete dam

  • Huang, Xiaofei (College of Water Conservancy and Hydropower Engineering, Hohai University) ;
  • Zheng, Dongjian (College of Water Conservancy and Hydropower Engineering, Hohai University) ;
  • Yang, Meng (College of Water Conservancy and Hydropower Engineering, Hohai University) ;
  • Gu, Hao (College of Water Conservancy and Hydropower Engineering, Hohai University) ;
  • Su, Huaizhi (College of Water Conservancy and Hydropower Engineering, Hohai University) ;
  • Cui, Xinbo (Information Center of Bureau of land and resources in Binzhou City) ;
  • Cao, Wenhan (College of Water Conservancy and Hydropower Engineering, Hohai University)
  • Received : 2016.05.13
  • Accepted : 2017.07.22
  • Published : 2018.02.28
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Abstract

The displacement monitoring data series reconstruction method was developed under equal water level effects based on displacement monitoring data of concrete dams. A dam displacement variation equation was set up under the action of temperature and aging factors by optimized analysis techniques and then the dam displacement hydraulic pressure components can be separated. Through the dynamic adjustment of temperature and aging effect factors, the aging component isolation method of dam displacement was developed. Utilizing the isolated dam displacement aging components, the dam stability model was established. Then, the dam stability criterion was put forward based on convergence and divergence of dam displacement aging components and catastrophe theory. The validity of the proposed method was finally verified combined with the case study.

Keywords

Acknowledgement

Supported by : National Natural Science Foundation of China

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