Assessment and mitigation of railway-induced environmental vibrations over underground comprehensive transportation hub

With the development of railway networks, a new infrastructure integrating the underground comprehensive transportation hub and building complex (UCTH&BC) is constructed in many metropolitan cities. However, there is no relevant research to analyse its railway-induced environmental vibrations and propose an appropriate mitigation measure for such a large structure. To have a comprehensive assessment and satisfying control of the potential environmental vibration problem during the life-cycle of UCTH&BC, a numerical study of a newly-built UCTH&BC was carried out through a time-frequency method based on transfer function theory. The ground and building vibrations were firstly evaluated to have a better understanding of vibration transmission and distribution characteristics. Furthermore, rubber mat floating slab tracks (RMFST) were optimised to propose a suitable mitigation measure. Results show that if adopting ordinary track structures, the ground vibrations in the regions where train-induced vibrations transmit directly through columns exceeded the standard limit seriously by more than 5 dB, while the nearby building vibrations were acceptable. The RMFST with the stiffness of 0.011 N/mm³ was recommended to efficiently reduce vibrations by more than 10 dB, ensuring environmental vibrations in the UCTH&BC satisfy the relevant standard requirement and provide a sufficient safety margin to deal with worse track conditions.

• Record URL:
  • https://doi.org/10.1080/15732479.2022.2127794
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/15732479
• Supplemental Notes:
  • © 2022 Informa UK Limited, trading as Taylor & Francis Group. Abstract reprinted with permission of Taylor & Francis.
• Authors:
  • Wang, Sen
  • Xin, Tao
  • Wang, Pengsong
  • Yang, Yi
  • Zhao, Lei
• Publication Date: 2024-6

Language

• English

Media Info

• Media Type: Web
• Features: References;
• Pagination: pp 883-894
• Serial:
  • Structure and Infrastructure Engineering
  • Volume: 20
  • Issue Number: 6
  • Publisher: Taylor & Francis
  • ISSN: 1573-2479
  • EISSN: 1744-8980
  • Serial URL: http://www.tandfonline.com/loi/nsie20

Subject/Index Terms

• TRT Terms: Design; Railroad tracks; Railroads; Underground structures; Vibration control
• Subject Areas: Design; Railroads; Terminals and Facilities;

Filing Info

• Accession Number: 01912966
• Record Type: Publication
• Files: TRIS
• Created Date: Mar 25 2024 9:54AM