Four-Year Performance of an Instrumented Highway Embankment on Degrading Permafrost

David Flynn, Marolo Alfaro, James Graham, Jeremy Fiebelkorn

In the proceedings of: GeoMontréal 2013: 66th Canadian Geotechnical Conference; 11th joint with IAH-CNC

Session: Cold Regions I

ABSTRACT: Research is being undertaken to improve understanding of mechanisms and processes associated with the performance of highway embankments on degrading permafrost. Changes in temperature lead to thawing which can result in potentially dangerous trafficability issues. Understanding the controlling mechanisms that produce poor performance will assist in selecting suitable remedial options. The focus of this research is a section of embankment along Provincial Road (PR) 391 located about 18 km north of Thompson, MB. Instrumentation was installed at the shoulder, mid-slope, and toe of the embankment in 2008. Additional instrumentation was installed in September 2012 for further analysis and numerical modelling. Data are now being collected remotely by satellite. The paper reports the analysis and synthesis of data from the recent monitoring periods.

RÉSUMÉ: Une recherche a été exécutée pour améliorer la compréhension des mécanismes et des processus associées à la performance des remblais de route sur le pergélisol qui se dégrade. Des changements de température peuvent entraîner le dégel, qui peut se résulter par des problèmes de traficabilité potentiellement dangereux. La compréhension des mécanismes qui résultent en un mauvais rendement assistera dans la sélection de solutions correctives. Le point central de cette recherche est la section le long de la route provinciale 391 basé environ 18km au nord de -pente et au pied du remblai en 2008. Des instruments additionnels ont été installés en septembre 2012 pour fai. Ces données sont maintenant collectées par satellite. Ce papier présente périodes de surveillance récentes.

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Cite this article:
David Flynn; Marolo Alfaro; James Graham; Jeremy Fiebelkorn (2013) Four-Year Performance of an Instrumented Highway Embankment on Degrading Permafrost in GEO2013. Ottawa, Ontario: Canadian Geotechnical Society.

@article{GeoMon2013Paper233,author = David Flynn; Marolo Alfaro; James Graham; Jeremy Fiebelkorn,title = Four-Year Performance of an Instrumented Highway Embankment on Degrading Permafrost ,year = 2013}