Dynamic Performance of a Deep Buried Pile-Plank Structure Transition Section for a High-Speed Railway—Field Tests and Numerical Analyses

The dynamic performance of a bridge-tunnel transition section with a deep buried pile-plank structure (DBPPS) for short transitions was studied. Field tests were performed, analyzing accelerations, velocities and displacements in the track and subgrade. Based on the field test results, the influences of the train types, driving direction and running speed on the dynamic response in the transition zone were investigated. A 3D finite element model considering vehicle-track-subgrade coupled interactions was presented, and the results from the model were compared with the measured responses. Based on the model, the distribution of the vertical dynamic stress in the subgrade was analyzed, and the running quality for the comfort of passengers on the train and the dynamic response along the DBPPS transition zone with alternative fillings in the subgrade, such as graded gravel and AB group filling (well graded coarse-grained soil with less than 30% fine-grained soil), were discussed. Comparatively, the graded gravel is recommended for the filling of base layer in the DBPPS subgrade.

• Record URL:
  https://doi.org/10.1016/j.trgeo.2020.100408
• Record URL:
  http://www.sciencedirect.com/science/article/pii/S2214391220302968
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/22143912
• Supplemental Notes:
  • © 2020 Elsevier Ltd. All rights reserved. Abstract reprinted with permission of Elsevier.
• Authors:
  • Wei, Limin
  • Li, Shuanglong
  • Lin, Yuliang
  • He, Qun
  • Zhang, Chunshun
• Publication Date: 2020-12

Language

• English

Media Info

• Media Type: Web
• Features: References;
• Serial:
  • Transportation Geotechnics
  • Volume: 25
  • Issue Number: 0
  • Publisher: Elsevier
  • ISSN: 2214-3912
  • Serial URL: http://www.sciencedirect.com/science/journal/22143912

Subject/Index Terms

• TRT Terms: Bridges; Dynamic loads; Gravel; High speed rail; Railroad tracks; Ride quality; Subgrade materials; Tunnels; Underground structures
• Subject Areas: Bridges and other structures; Design; Railroads;

Filing Info

• Accession Number: 01747956
• Record Type: Publication
• Files: TRIS
• Created Date: Aug 17 2020 9:38AM