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Structural Engineering and Mechanics Volume 69, Number 5, March10 2019 , pages 557-566 DOI: https://doi.org/10.12989/sem.2019.69.5.557 |
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An approach for deformation modulus mechanism of super-high arch dams |
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Bangbin Wu, Jingtai Niu, Huaizhi Su, Meng Yang, Zhongru Wu and Xinbo Cui
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| Abstract | ||
| The reservoir basin bedrock produced significant impact on the long-term service safety of super-high arch dams. It was important for accurately identifying geomechanical parameters and its evolution process of reservoir basin bedrock. The deformation modulus mechanism research methods of reservoir basin bedrock deformation modulus for super-high arch dams was carried out by finite element numerical calculation of the reservoir basin bedrock deformation and in-situ monitoring data analysis. The deformation modulus inversion principle of reservoir basin bedrock in a wide range was studied. The convergence criteria for determining the calculation range of reservoir basin of super-high arch dams was put forward. The implementation method was proposed for different layers and zones of reservoir basin bedrock. A practical engineering of a super-high arch dam was taken as the example. | ||
| Key Words | ||
| wide basin bedrock; deformation modulus; finite element numerical calculation; inversion principle | ||
| Address | ||
| Bangbin Wu: 1) State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Hohai University, Nanjing 210098, China 2) College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, China 3) College of Water Conservancy and Ecological Engineering, Nanchang Institute of technology, Nanchang, Jiangxi 330099, China Jingtai Niu: College of Water Conservancy and Ecological Engineering, Nanchang Institute of technology, Nanchang, Jiangxi 330099, China Huaizhi Su, Meng Yang and Zhongru Wu: 1) State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Hohai University, Nanjing 210098, China 2) College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, China 3) National Engineering Research Center of Water Resources Efficient Utilization and Engineering Safety, Hohai University, Nanjing 210098, China Xinbo Cui: Information Center of Land and Resources in Binzhou City, Binzhou, China | ||