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Volume 45 Issue S2
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LU Xinyu, JING Liping, QI Wenhao, XIA Feng. Shaking table tests on seismic dynamic response of pile groups under nuclear structures[J]. Chinese Journal of Geotechnical Engineering, 2023, 45(S2): 91-97. DOI: 10.11779/CJGE2023S20008
Citation: LU Xinyu, JING Liping, QI Wenhao, XIA Feng. Shaking table tests on seismic dynamic response of pile groups under nuclear structures[J]. Chinese Journal of Geotechnical Engineering, 2023, 45(S2): 91-97. DOI: 10.11779/CJGE2023S20008
shu

Shaking table tests on seismic dynamic response of pile groups under nuclear structures

  • 1.

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

  • 2.

    First Crust Monitoring and Application Center, China Earthquake Administration, Tianjin 300180, China

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  • Received Date: November 29, 2023
  • Available Online: April 19, 2024
    Graphical Abstract
    • Abstract
  • A non-rock site-pile group foundation-safety-related nuclear structure system model is established by using the large-scale shaking table test method to study the seismic response, distribution of internal force and failure of pile-group foundation under nuclear power structures. The soil model in the tests is the uniform silted clay, and the circular laminar shear container is used to take the boundary effects of soil into consideration. The pile-group foundation is composed of 9 piles with a diameter of 10 cm and a length of 200 cm, arranged symmetrically according to 3×3. The actual safety-related nuclear structures are simplified into a three-layer frame-shear wall structure model. The research results show that the main failure mode of the pile-group foundation is bending tensile failure, most of which is located in the depth range of 4~7 times the pile diameter from junction between the pile top and the cap, and damage of the junction is the most serious, where the bending moment is also greater than that at other positions.
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    • References (16)
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