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Research Infrastructure High Speed Train Geotechnics

University Transportation Center for Railway Safety (UTCRS) College of Engineering and Computer Science

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University Transportation Center for Railway Safety (UTCRS)

Dynamic Live Load Effects of Railroad on Retaining Walls and Temporary Shoring - Related Links

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Center for Railway Safety (UTCRS)
Engineering Portable
EPOB4 1.100
Email: railwaysafety@utrgv.edu
Phone: (956) 665-8878
Fax: (956) 665-8879
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USDOT FRA OST-R UTCs CUTC AAR/TTCI

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

University  Texas A&M University (TAMU)
Principal Investigators  Charles Aubeny, Ph.D., Civil Engineering (PI)
Gary Fry, Ph.D., P.E., Civil Engineering (Co-PI)
PI Contact Information  808P CEOB
College Station, TX 77843-3135
Office (979) 845-4478
caubeny@civil.tamu.edu 

3135 TAMU
College Station, TX 77843-3135
Office (979) 862-1339
garyfry@tamu.edu 
Funding Source(s) and Amounts Provided (by each agency or organization)  Federal Funds (USDOT UTC Program): $75,000
Total Project Cost  $75,000
Agency ID or Contract Number  DTRT13-G-UTC59
Start and End Dates May 2016 - December 2017
Brief Description of Research Project  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 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.
Keywords accident, derailment, track geometry, shoring, wall and soil movements, displacement, strain, excavations, retaining walls, soil types, wall types, numerical models
Describe Implementation of Research Outcomes (or why not implemented) Place Any Photos Here Pending Project Completion.
Impacts/Benefits of Implementation (actual, not anticipated) Pending Project Completion.
Report http://www.utrgv.edu/railwaysafety/_files/infrastructure/dynamic-live-load-effects-of-railroads-on-retaining-walls.pdf
Project Website http://www.utrgv.edu/railwaysafety/research/infrastructure/dynamic-live-load-effects-of-railroads-on-retaining-walls/index.htm  
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