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Vertical Dynamic Impedance of a Viscoelastic Pile in Arbitrarily Layered Soil Based on the Fictitious Soil Pile Model

Author

Listed:
  • Xiaoyan Yang

    (Faculty of Engineering, Zhejiang Institute, China University of Geosciences, Wuhan 430074, China)

  • Lixing Wang

    (Faculty of Engineering, Zhejiang Institute, China University of Geosciences, Wuhan 430074, China)

  • Wenbing Wu

    (Faculty of Engineering, Zhejiang Institute, China University of Geosciences, Wuhan 430074, China
    Research Center of Coastal Urban Geotechnical Engineering, Zhejiang University, Hangzhou 310058, China
    Guangxi Key Laboratory of Disaster Prevention and Engineering Safety, College of Civil Engineering and Architecture, Guangxi University, Nanning 530004, China)

  • Hao Liu

    (Faculty of Engineering, Zhejiang Institute, China University of Geosciences, Wuhan 430074, China
    Guangxi Key Laboratory of Disaster Prevention and Engineering Safety, College of Civil Engineering and Architecture, Guangxi University, Nanning 530004, China)

  • Guosheng Jiang

    (Faculty of Engineering, Zhejiang Institute, China University of Geosciences, Wuhan 430074, China)

  • Kuihua Wang

    (Research Center of Coastal Urban Geotechnical Engineering, Zhejiang University, Hangzhou 310058, China)

  • Guoxiong Mei

    (Faculty of Engineering, Zhejiang Institute, China University of Geosciences, Wuhan 430074, China
    Guangxi Key Laboratory of Disaster Prevention and Engineering Safety, College of Civil Engineering and Architecture, Guangxi University, Nanning 530004, China)

Abstract

The vertical vibration of a viscoelastic pile immersed in arbitrarily layered soil is investigated by taking the interaction among pile, pile surrounding soil (PSS) and pile end soil (PES) into account. Firstly, considering both the stratification and stress wave effect of soil, a mathematical model of the pile–soil system is established based on the fictitious soil pile (FSP) model. Then, utilizing the impedance function transfer method and Laplace transform technique, the analytical solutions of the vertical dynamic impedance of pile are derived in the frequency domain. The analytical solutions are validated by comparing them with other existing solutions. Finally, a parametric study is put forward to investigate the properties of PES on the vertical dynamic impedance of pile. The results reveal that the properties of PES have a significant effect on the vertical dynamic impedance of pile, but there is a critical influence thickness for this effect. For the cases of the PES thickness exceeding the critical influence thickness, further increase of PES thickness will not affect the dynamic behavior of the pile–soil system.

Suggested Citation

  • Xiaoyan Yang & Lixing Wang & Wenbing Wu & Hao Liu & Guosheng Jiang & Kuihua Wang & Guoxiong Mei, 2022. "Vertical Dynamic Impedance of a Viscoelastic Pile in Arbitrarily Layered Soil Based on the Fictitious Soil Pile Model," Energies, MDPI, vol. 15(6), pages 1-21, March.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:6:p:2087-:d:769996
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    References listed on IDEAS

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    1. Libo Chen & Xiaoyan Yang & Lichen Li & Wenbing Wu & M. Hesham El Naggar & Kuihua Wang & Jinyong Chen, 2020. "Numerical Analysis of the Deformation Performance of Monopile under Wave and Current Load," Energies, MDPI, vol. 13(23), pages 1-14, December.
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    Cited by:

    1. Wenjie Guan & Meixia Zhang & Zekun Wang & Guosheng Jiang & Wenqi Liu & Sheng Cao & Chin Jian Leo & Elieen An & Xiaodong Gao & Wenbing Wu, 2022. "Influence of the Three-Dimensional Effect of Pile-Soil System on the Vertical Dynamic Response of Large-Diameter Piles in Low-Strain Integrity Testing," Energies, MDPI, vol. 15(24), pages 1-23, December.
    2. Wenbing Wu & Yunpeng Zhang, 2022. "A Review of Pile Foundations in Viscoelastic Medium: Dynamic Analysis and Wave Propagation Modeling," Energies, MDPI, vol. 15(24), pages 1-24, December.

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