An advanced technology for measuring track substructure conditions has been developed by Sol Solution in France. This technology, referred to as the PANDA® and Geo-Endoscopy® technique, comprises driving a variable energy cone penetration device into the track substructure using an instrumented anvil to collect strength (and modulus by correlation) profile with depth. Condition monitoring of the track substructure layers is accomplished through insertion of a camera into the same hole, also called Geoendoscopy®. The tests are commonly faster than Dynamic Cone Penetration (DCP) testing and cause negligible damage to the track substructure with the use of light and portable devices. This paper presents data from PANDA® and Geo-Endoscopy® testing efforts recently carried out under the scope of an ongoing research study at the University of Illinois. The primary objective was to relate the substructure layer properties to plastic layer deformations measured through advanced geotechnical instrumentation. Combined analysis of the PANDA®, Geo-Endoscopy®, and field instrumentation data has been used to highlight the reliability of this innovative technique towards improved evaluation of track substructure layer conditions.
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2015 Joint Rail Conference
March 23–26, 2015
San Jose, California, USA
Conference Sponsors:
- Rail Transportation Division
ISBN:
978-0-7918-5645-1
PROCEEDINGS PAPER
Application of PANDA and Geo-Endoscopy Techniques for Improved Assessment of Track Substructure Conditions at Railroad Bridge Approaches Available to Purchase
Debakanta Mishra,
Debakanta Mishra
Boise State University, Boise, ID
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Jonathan Gallier,
Jonathan Gallier
Sol Solution, Riom Cedex, France
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Erol Tutumluer,
Erol Tutumluer
University of Illinois at Urbana-Champaign, Urbana, IL
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Younes Haddani,
Younes Haddani
Sol Solution, Riom Cedex, France
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Roland Gourves
Roland Gourves
Sol Solution, Riom Cedex, France
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Debakanta Mishra
Boise State University, Boise, ID
Jonathan Gallier
Sol Solution, Riom Cedex, France
Erol Tutumluer
University of Illinois at Urbana-Champaign, Urbana, IL
Younes Haddani
Sol Solution, Riom Cedex, France
Roland Gourves
Sol Solution, Riom Cedex, France
Paper No:
JRC2015-5744, V001T01A027; 8 pages
Published Online:
June 10, 2015
Citation
Mishra, D, Gallier, J, Tutumluer, E, Haddani, Y, & Gourves, R. "Application of PANDA and Geo-Endoscopy Techniques for Improved Assessment of Track Substructure Conditions at Railroad Bridge Approaches." Proceedings of the 2015 Joint Rail Conference. 2015 Joint Rail Conference. San Jose, California, USA. March 23–26, 2015. V001T01A027. ASME. https://doi.org/10.1115/JRC2015-5744
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