Use of multidepth deflectometers and strain gauges to investigate the differential movement at railway bridge approaches

D. Mishra, E. Tutumluer, H. Kazmee, H. Boler

Research output: Contribution to journalArticlepeer-review

Abstract

This paper presents findings from on ongoing research study at the University of Illinois focusing on the instrumentation and performance monitoring of railroad bridge approaches using multidepth deflectometers and strain gauges. Different sensors installed at the selected approaches are introduced, and details of the instrumentation activity are explained. Example track settlement data acquired over time is presented to compare the contributions of different substructure layers to the permanent deformation accumulation. Similarly, transient track deformation data gathered for train loading is presented to highlight the contributions of individual track substructure layers towards the total transient deformations. The ballast layers appear to be the primary source of accumulation for both permanent as well as transient deformations.

Original languageEnglish (US)
JournalCivil-Comp Proceedings
Volume104
StatePublished - Jan 1 2014

Keywords

  • Ballast settlement
  • Differential movement
  • Instrumentation
  • Multidepth deflectometers
  • Strain gauge
  • Track transitions

ASJC Scopus subject areas

  • Environmental Engineering
  • Civil and Structural Engineering
  • Computational Theory and Mathematics
  • Artificial Intelligence

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