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Comparative Study on Shaking Table Tests for a Pile–Nuclear Island Structure under Different Soil Conditions

Author

Listed:
  • Yunlun Sun

    (China Nuclear Energy Technology Co., Ltd., Beijing 100094, China)

  • Gang Wang

    (School of Civil Engineering, Xuzhou University of Technology, Xuzhou 221018, China)

  • Yougang Wang

    (China Nuclear Energy Technology Co., Ltd., Beijing 100094, China)

  • Jian Tu

    (China Nuclear Energy Technology Co., Ltd., Beijing 100094, China)

  • Liping Jing

    (Key Laboratory of Earthquake Engineering and Engineering Vibration, Institute of Engineering Mechanics, China Earthquake Administration, Harbin 150080, China)

  • Wenhao Qi

    (Key Laboratory of Earthquake Engineering and Engineering Vibration, Institute of Engineering Mechanics, China Earthquake Administration, Harbin 150080, China)

Abstract

In this paper, the shaking table tests of a Seismic–Soil–Pile–Superstructure Interaction (SSPSI) in medium-soft and hard base soil were carried out. Silted clay with a unit weight of 1.70 g/cm 3 and a shear wave velocity of 175 m/s was adopted to simulate the medium-soft soil, while the composite soil obtained by adding 20% quicklime to silted clay with a unit weight of 1.75 g/cm 3 and a shear wave velocity of 300 m/s was adopted to simulate the hard soil in the tests. By inputting the artificial seismic motion time history with different amplitudes synthesized by the RG1.60 response spectrum commonly used in nuclear power engineering to the models, the dynamic interaction characteristics and seismic response laws of the soil–pile–nuclear island structure in the medium-soft and hard base soil were compared, the internal force and deformation distribution characteristics of the pile foundation under different ground conditions were analyzed, and the site conditions and mechanism of seismic failure of the pile group foundation were described. The research results can provide a reference for site selection and seismic design of a nuclear power plant.

Suggested Citation

  • Yunlun Sun & Gang Wang & Yougang Wang & Jian Tu & Liping Jing & Wenhao Qi, 2023. "Comparative Study on Shaking Table Tests for a Pile–Nuclear Island Structure under Different Soil Conditions," Sustainability, MDPI, vol. 15(15), pages 1-18, August.
    • Handle: RePEc:gam:jsusta:v:15:y:2023:i:15:p:11988-:d:1210336
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