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Volume 45 Issue S2
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LIU Hongbo, DAI Guoliang, ZHANG Ruiling. Influencing mechanism of cement-soil reinforcement on lateral dynamic response of single pile[J]. Chinese Journal of Geotechnical Engineering, 2023, 45(S2): 177-182, 228. DOI: 10.11779/CJGE2023S20024
Citation: LIU Hongbo, DAI Guoliang, ZHANG Ruiling. Influencing mechanism of cement-soil reinforcement on lateral dynamic response of single pile[J]. Chinese Journal of Geotechnical Engineering, 2023, 45(S2): 177-182, 228. DOI: 10.11779/CJGE2023S20024
shu

Influencing mechanism of cement-soil reinforcement on lateral dynamic response of single pile

  • 1.

    Key Laboratory of Concrete and Prestressed Concrete Structures of Ministry of Education, Nanjing 211189, China

  • 2.

    School of Civil Engineering, Southeast University, Nanjing 211189, China

  • 3.

    School of Civil Engineering, Lanzhou University of Technology, Lanzhou 730050, China

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  • Received Date: November 29, 2023
  • Available Online: April 19, 2024
    Graphical Abstract
    • Abstract
  • Cement-soil composite pile is often utilized as the foundation of offshore bridges or wind turbines to resist lateral vibrations in natural environments. A mathematical model is proposed for the coupled vibration of the cement-soil composite pile and the soil around the pile under lateral dynamic loads through theoretical derivation. Then, the analytical expressions for the horizontal and rocking dynamic impedances at the pile head are obtained through theoretical derivation. Finally, the influence of cement-soil parameters on the dynamic impedance are studied through numerical calculation and parametric analysis. The results reveal that the increase of the cement-soil radius will increase the horizontal and rocking dynamic impedances, but it is not conducive to the horizontal dynamic impedance at high frequency vibration. The cement-soil depth should not exceed its effective reinforcement depth. The increase of the cement-soil elastic modulus is beneficial to improve the dynamic impedance of pile head.
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    • References (18)
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