Verification and Effectiveness of Seismic Isolation Measures for Nuclear Island Buildings Based on Inclinated Underground Wall

DING Zhixin; DU Junheng; LI Jianbo; LI Zhiyuan; LIN Gao

doi:10.3724/j.gyjzG23081305

Volume 55 Issue 9

Sep. 2025

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DING Zhixin, DU Junheng, LI Jianbo, LI Zhiyuan, LIN Gao. Verification and Effectiveness of Seismic Isolation Measures for Nuclear Island Buildings Based on Inclinated Underground Wall[J]. INDUSTRIAL CONSTRUCTION, 2025, 55(9): 238-246. doi: 10.3724/j.gyjzG23081305

Citation:

DING Zhixin, DU Junheng, LI Jianbo, LI Zhiyuan, LIN Gao. Verification and Effectiveness of Seismic Isolation Measures for Nuclear Island Buildings Based on Inclinated Underground Wall[J]. INDUSTRIAL CONSTRUCTION, 2025, 55(9): 238-246. doi: 10.3724/j.gyjzG23081305

Citation:

DING Zhixin, DU Junheng, LI Jianbo, LI Zhiyuan, LIN Gao. Verification and Effectiveness of Seismic Isolation Measures for Nuclear Island Buildings Based on Inclinated Underground Wall[J]. INDUSTRIAL CONSTRUCTION, 2025, 55(9): 238-246. doi: 10.3724/j.gyjzG23081305

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Verification and Effectiveness of Seismic Isolation Measures for Nuclear Island Buildings Based on Inclinated Underground Wall

doi: 10.3724/j.gyjzG23081305

DING Zhixin¹,
DU Junheng^2,3,
LI Jianbo^{2,3
,
,},
LI Zhiyuan⁴,
LIN Gao^2,3

1. State Key Laboratory of Nuclear Power Safety Technology and Equipment, CGN Nuclear Engineering Co., Ltd., Shenzhen 518172, China;
2. State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, China;
3. Institute of Seismic Engineering, Faculty of Construction Engineering, Dalian University of Technology, Dalian 116024, China;
4. Earthquake Engineering Research Center, China Institute of Water Resources and Hydropower Research, Beijing 100038, China

Received Date: 2023-08-13
Available Online: 2025-11-05

Abstract

Abstract

The lithologic foundation of nuclear power engineering in China is becoming increasingly scarce， and the development of inland nuclear power has become an inevitable trend. Improving the seismic ability of nuclear power structure on non-lithologic foundation has become one of the key topics in the construction of inland nuclear power plants. Based on the overall simulation analysis of soil-structure interaction with external fluctuations， this paper proposed the construction of an underground partition wall on the ground based on hydraulic curtain technology as an isolation measure， and discussed the effect of reducing the input of seismic wave energy to the superstructure. Firstly， based on the fine simulation of the external wave problem of soil-structure interaction， the effects of layout and material parameters of various underground isolation walls on the isolation effect were compared. Then， the seismic isolation measures are applied to the structural analysis of nuclear power plant， and the influence on the floor spectrum of nuclear power plant was studied. The research results show that the proposed inclined underground wall has good seismic isolation effect and can provide a new way to improve the seismic capability of important buildings such as nuclear island.
- soil-structure interaction,
- nuclear power structure,
- non-lithologic foundation,
- inclined underground wall,
- exogenous fluctuation

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References(20)

References

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