New Analysis of Ground Penetrating Radar Testing of a Mixed Railway Trackbed
The overall aim of this project was to relate Ground Penetrating Radar (GPR) to ballast fouling. The 10-year old University of Edinburgh full-scale trackbed was revisited and the fouling of the ballast was recalibrated following environmental changes, using the Ionescu fouling index. A series of GPR experiments were undertaken on the trackbed using a range of bowtie antennas from 500MHz to 2.6GHz. Scatter analyses of the GPR waveforms included area analyses, axis crossing analyses and inflexion point analyses. When predicting Fouling Index, a correlation coefficient greater than 0.9 was obtained by using a 500 MHz bowtie antenna in the parallel orientation in conjunction with a scan area analysis. This paper will outline the recent work of other researchers and the detailed experimental program at the University of Edinburgh.
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Corporate Authors:
500 Fifth Street, NW
Washington, DC United States 20001 -
Authors:
- Forde, Michael Christopher
- De Bold, Robert
- O’Connor, Gerard
- Morrissey, John
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Conference:
- Transportation Research Board 89th Annual Meeting
- Location: Washington DC, United States
- Date: 2010-1-10 to 2010-1-14
- Date: 2010
Language
- English
Media Info
- Media Type: DVD
- Features: Figures; References; Tables;
- Pagination: 18p
- Monograph Title: TRB 89th Annual Meeting Compendium of Papers DVD
Subject/Index Terms
- TRT Terms: Antifouling coatings; Ballast (Railroads); Ballastless track; Ground penetrating radar; Maintenance of way; Railroad tracks
- Uncontrolled Terms: Railroad track beds
- Geographic Terms: Edinburgh (Scotland)
- Subject Areas: Maintenance and Preservation; Railroads; I61: Equipment and Maintenance Methods;
Filing Info
- Accession Number: 01157089
- Record Type: Publication
- Report/Paper Numbers: 10-3142
- Files: TRIS, TRB
- Created Date: May 24 2010 2:08PM