Development of a Time Domain Reflectometry Sensor for Cone Penetration Testing
Mike Amos, Lee Barbour, Dyan Pratt, Bing Si
In the proceedings of: GeoRegina 2014: 67th Canadian Geotechnical ConferenceSession: Laboratory and Field Testing
ABSTRACT: A preliminary laboratory program has been undertaken on a series of prototype designs for a time domain reflectometry (TDR) probe that could be adapted for cone penetration testing (CPT). The goal of this work is to design a TDR-CPT probe which could be used to map water content profiles across reclaimed mine closure landforms. The probe will be inserted to depths of at least 10-20 m, and will need to mitigate the effects of high salinity, as well as withstand the high levels of wear and friction encountered during insertion. Testing focused primarily on oil sands mine tailings sands with elevated salinity and a range of water contents. The best performance was obtained for a probe with three TDR rods partially embedded, and one enclosed, in acetyl resin. This prototype design will now be evaluated under more realistic field and operational conditions associated with CPT operation.
RÉSUMÉ: Un programme de laboratoire préliminaire a été entrepris sur une série de prototypes pour une sonde à réflectométrie de domaine temporel (TDR) qui pourrait être adaptée pour les tests de pénétromètres coniques. Le but de ce travail est de concevoir une sonde TDR-CPT qui pourrait être utilisée pour cartographier les profils de teneur en eau à travers les terres récupéré ont surtout visé les résidus des sables pétrolifères ayant un niveau de salinité élevé et enfoncée, et une enfermée, en résine Acétyle. Ce prototype sera maintenant évalué en conditions plus réalistes et des
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Mike Amos; Lee Barbour; Dyan Pratt; Bing Si (2014) Development of a Time Domain Reflectometry Sensor for Cone Penetration Testing in GEO2014. Ottawa, Ontario: Canadian Geotechnical Society.
@article{GeoRegina14Paper181,
author = Mike Amos; Lee Barbour; Dyan Pratt; Bing Si,
title = Development of a Time Domain Reflectometry Sensor for Cone Penetration Testing,
year = 2014
}
title = Development of a Time Domain Reflectometry Sensor for Cone Penetration Testing,
year = 2014
}