Dynamic Live Load Effects of Railroads on Retaining Walls and Temporary Shoring

Analysis of causes of major train derailment and their effect on accident rates shows that the second major reason of train derailment is change of track geometry. Shored excavations near railway alignments can introduce significant potential for changes in the track geometry; thus, a thorough understanding of the mechanisms of wall and soil mass movements is essential to limiting changes of track geometry to acceptable levels, thereby making a significant contribution to railroad safety. Recently, an instrumented test wall site comprising a sheet pile wall segment and a soldier pile/timber lagging wall segment was installed adjacent to a Union Pacific Railroad (UPRR) site in south College Station, Texas. This project is designed to measure both instantaneous and long-term permanent displacements and strains in the wall. Additionally, periodic surveys will be performed to measure changes in track geometry, and correlate these measurements to wall movements. High quality measurements from this test site can be used to validate numerical models of wall response. Such numerical models provide a means for extrapolating the findings from the test site to other soil types, wall types and wall geometries. An instrumented test wall adjacent to an active railway is a very unique asset, so this test site presents a rare opportunity to improve the current level of understanding of wall systems subjected to repeated live railroad loads.

Language

  • English

Project

  • Status: Active
  • Funding: $75,000
  • Contract Numbers:

    DTRT13-G-UTC59

  • Sponsor Organizations:

    Research and Innovative Technology Administration

    University Transportation Centers Program
    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Managing Organizations:

    Texas A&M University, College Station

    Zachry Department of Civil Engineering
    3136 TAMU
    College Station, TX  United States  77843-3136
  • Performing Organizations:

    Texas A&M University, College Station

    Zachry Department of Civil Engineering
    3136 TAMU
    College Station, TX  United States  77843-3136
  • Principal Investigators:

    Aubeny, Charles

    Fry, Gary

  • Start Date: 20160501
  • Expected Completion Date: 20171231
  • Actual Completion Date: 0
  • USDOT Program: Track and Train Interaction

Subject/Index Terms

Filing Info

  • Accession Number: 01601814
  • Record Type: Research project
  • Source Agency: University Transportation Center for Railway Safety
  • Contract Numbers: DTRT13-G-UTC59
  • Files: UTC, RiP
  • Created Date: Jun 8 2016 3:11PM