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Simulation and Analysis on Ground Vibrations of Pile-Net Composite Subgrade Under High-Speed Train Loadings

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Noise and Vibration Mitigation for Rail Transportation Systems (IWRN 2022)

Part of the book series: Lecture Notes in Mechanical Engineering ((LNME))

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Abstract

The pile-net composite subgrade is a widely adopted construction for high-speed railway in China. This study employs a 3D finite element method (FEM) model to investigate the influences of soil type and pile-net composite subgrade design parameters on ground vibrations induced by high-speed trains moving on such composite foundations. The model comprise the track, embankment, geogrid, pile caps and piles. The results reveal that the ground vibrations exhibit a decreasing trend with the increasing distance from the track center under different soil types, and the attenuation rate of ground vibrations in softer soil is higher than that in the stiffer soil. The types of foundation soils have a considerable influences on the vibration attenuation, especially for the far track zone. The peak ground vibration acceleration decreases with increasing pile diameter and the decreasing pile spacing. Moreover, the pile diameter exters a greater impact on ground vibrations than the pile spacing, especially for the near track zone.

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Acknowledgements

The work described in this paper was supported by the National Science Foundation of China (Grant no. 51978510).

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Authors and Affiliations

  1. Department of Geotechnical Engineering & Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education, Tongji University, 1239 Siping Rd, Shanghai, China

    Guangyun Gao, Jianlong Geng & Yuanyang You

  2. Institute of Geotechnical and Underground Engineering, Guangzhou Design Institute Group Co., Ltd., Guangzhou, 510620, China

    Junwei Bi

Authors
  1. Guangyun Gao
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  2. Jianlong Geng
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  3. Junwei Bi
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  4. Yuanyang You
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Corresponding author

Correspondence to Guangyun Gao .

Editor information

Editors and Affiliations

  1. School of Urban Railway Transportation, Shanghai University of Engineering Science, Shanghai, China

    Xiaozhen Sheng

  2. Institute of Sound and Vibration Research, University of Southampton, Southampton, UK

    David Thompson

  3. Department of Civil Engineering, KU Leuven, Leuven, Belgium

    Geert Degrande

  4. Department of Mechanics and Maritime Sciences, Chalmers University of Technology, Gothenburg, Sweden

    Jens C. O. Nielsen

  5. SNCF Réseau, La Plaine Saint Denis, France

    Pierre-Etienne Gautier

  6. Railway Technical Research Institute, Kokubunji, Tokyo, Japan

    Kiyoshi Nagakura

  7. M+P Raadgevende Ingenieurs BV, Aalsmeer, Noord-Holland, The Netherlands

    Ard Kuijpers

  8. Wilson, Ihrig and Associates, Emeryville, CA, USA

    James Tuman Nelson

  9. Cross-Spectrum Acoustics Inc., Burlington, MA, USA

    David A. Towers

  10. Acoustic Studio, Stanmore, NSW, Australia

    David Anderson

  11. DB Systemtechnik GmbH, Center of Competence Center Aerodynamics and HVAC, Munich, Germany

    Thorsten Tielkes

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© 2024 The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

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Gao, G., Geng, J., Bi, J., You, Y. (2024). Simulation and Analysis on Ground Vibrations of Pile-Net Composite Subgrade Under High-Speed Train Loadings. In: Sheng, X., et al. Noise and Vibration Mitigation for Rail Transportation Systems. IWRN 2022. Lecture Notes in Mechanical Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-99-7852-6_60

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  • DOI: https://doi.org/10.1007/978-981-99-7852-6_60

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  • Publisher Name: Springer, Singapore

  • Print ISBN: 978-981-99-7851-9

  • Online ISBN: 978-981-99-7852-6

  • eBook Packages: EngineeringEngineering (R0)

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