Displacement aging component-based stability analysis for the concrete dam

Xiaofei Huang, Dongjian Zheng, Meng Yang, Hao Gu, Huaizhi Su, Xinbo Cui and Wenhan Cao

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.

Key Words

concrete dam; monitoring data; displacement effect factor separation; displacement aging component; stability model and criterion

Address

Xiaofei Huang, Dongjian Zheng, Meng Yang, Hao Gu, Huaizhi Su and Wenhan Cao: 1)College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, China 2)State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Hohai University, Nanjing 210098, China 3National Engineering Research Center of Water Resources Efficient Utilization and Engineering Safety, Hohai University, Nanjing 210098, China Xinbo Cui: Information Center of Bureau of land and resources in Binzhou City, Binzhou 256603, China

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