Seismic response analysis of Xinfengjiang reservoir dam based on strong earthquake records and numerical simulation

Yi Zhang; Shi-qian Ding; Hui Jiang; Jia-jian Zhu; Jin Li

doi:10.1117/12.2627602

11 March 2022 Seismic response analysis of Xinfengjiang reservoir dam based on strong earthquake records and numerical simulation

Yi Zhang, Shi-qian Ding, Hui Jiang, Jia-jian Zhu, Jin Li

Author Affiliations +

Proceedings Volume 12160, International Conference on Computational Modeling, Simulation, and Data Analysis (CMSDA 2021); 121601K (2022) https://doi.org/10.1117/12.2627602
Event: International Conference on Computational Modeling, Simulation, and Data Analysis (CMSDA 2021), 2021, Sanya, China

Abstract

Since Xinfengjiang Reservoir began to store water, earthquakes occurred frequently in the reservoir area. Even now, earthquakes are still frequently raging in that region. The fortification intensity of the reservoir dam was 6 degrees at the initial stage of construction, which was obviously low. After that, it has been reinforced twice, so it is necessary to analyze the seismic response of the reinforced dam. In this paper, the strong earthquake records of the dam and finite element simulation technology are used to analyze the seismic response of the dam. The results show that: under the action of small earthquakes, the acceleration response of the dam sections on both banks is larger along the dam direction, while the acceleration response of the middle dam section along the river direction and in the vertical direction is larger, and the dam amplification is obvious. Under the action of a fortification earthquake, the maximum displacement of the dam occurs at the top of the dam, and the major tensile stress is at the downstream outlet and dam heel, but they are all within the safe range.

Citation Download Citation

Yi Zhang, Shi-qian Ding, Hui Jiang, Jia-jian Zhu, and Jin Li "Seismic response analysis of Xinfengjiang reservoir dam based on strong earthquake records and numerical simulation", Proc. SPIE 12160, International Conference on Computational Modeling, Simulation, and Data Analysis (CMSDA 2021), 121601K (11 March 2022); https://doi.org/10.1117/12.2627602

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