MONITORING GEOHAZARDS NEAR PIPELINE CORRIDORS WITH AN ADVANCED INSAR TECHNIQUE AND GEOMECHANICAL MODELLING
Jayanti Sharma
In the proceedings of: GeoQuébec 2015: 68th Canadian Geotechnical Conference & 7th Canadian Permafrost ConferenceSession: Landslides and Slope Stability IV / Mouvements de terrain et stabilité des pentes IV
ABSTRACT: Surface displacements derived from Interferometric Synthetic Aperture Radar (InSAR) for the monitoring and risk assessment of geohazards near pipeline corridors are presented. The InSAR results are integrated with GIS analyses and field data to define geologic and preliminary geomechanical models using the InSAR-derived displacements and GIS-derived geological features as a constraint. Geohazard monitoring is demonstrated over the Fels Glacier in Alaska, which is bordered by active, deep-seated, slowly deforming slopes with the potential for generating large landslides that could damage the nearby Trans-Alaska Pipeline and Richardson Highway.
RÉSUMÉ: Des mouvements de surfaces déduits des techniques de radar interférométrique à ouverture synthétique (InSAR), utilisées pour la surveillance et l™évaluation des risques associés aux aléas géologiques près de corridors d™un pipeline, sont présentés. Les résultats InSAR sont intégrés aux analyses SIG et aux données de terrain afin de définir des modèles géologiques et géo-mécaniques préliminaires utilisant les déplacements obtenus de l™InSAR et les particularités géologiques obtenues de l™analyse SIG comme contraintes de modélisation. La surveillance d™aléa géologique est démontrée pour le site du glacier de Fels en Alaska qui borde une profonde et lente déformation gravitationnelle active qui a le potentiel de générer de grands glissements pouvant endommager le Pipeline Trans-Alaska et l™Autoroute Richardson qui sont tous deux situés à proximité.
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Jayanti Sharma (2015) MONITORING GEOHAZARDS NEAR PIPELINE CORRIDORS WITH AN ADVANCED INSAR TECHNIQUE AND GEOMECHANICAL MODELLING in GEO2015. Ottawa, Ontario: Canadian Geotechnical Society.
@article{373,
author = Jayanti Sharma,
title = MONITORING GEOHAZARDS NEAR PIPELINE CORRIDORS WITH AN ADVANCED INSAR TECHNIQUE AND GEOMECHANICAL MODELLING,
year = 2015
}
title = MONITORING GEOHAZARDS NEAR PIPELINE CORRIDORS WITH AN ADVANCED INSAR TECHNIQUE AND GEOMECHANICAL MODELLING,
year = 2015
}