Slope failure in clay shale in western Manitoba: a case study
Jeremy Leigh Fiebelkorn, Marolo Alfaro, Jim Graham
In the proceedings of: GeoHazards 6: 6th Canadian Geohazards ConferenceSession: Transportation
ABSTRACT: Slope instabilities have affected Provincial Trunk Highway 5 near Dauphin Manitoba for over 50 years. In 2011, Manitoba Infrastructure and Transportation began investigating possible failure mechanisms and remedial alternatives. Slope inclinometers and piezometers were monitored over two years. Laboratory testing compared direct shear and torsional ring shear tests from underlying Cretaceous clay shale. Coupled finite element modeling examined excess pore-water pressures and slope stability during construction of a stabilizing berm. Modeling results will be used to compare with the measured pore-water pressure response following construction.
RÉSUMÉ: Instabilités de pente ont affecté la route provinciale 5, près de Dauphin au Manitoba depuis plus de 50 ans. En 2011, Infrastructure et Transports Manitoba a commencé à enquêter sur les mécanismes de défaillance possibles et solutions correctives. Inclinomètres et piézomètres de pente ont été suivis sur deux ans. Les tests de laboratoire par rapport cisaillement direct et les essais de cisaillement de torsion du sous-jacent schiste argileux du Crétacé. Modélisation par éléments finis couplé examiné pressions interstitielles en excès et la stabilité de la pente lors de la construction d'une berme de stabilisation. Résultats de la modélisation seront utilisés pour comparer avec la réponse de la pression de l'eau interstitielle mesurée après la construction.
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Fiebelkorn, Jeremy Leigh, Alfaro, Marolo, Graham, Jim (2014) Slope failure in clay shale in western Manitoba: a case study in GeoHazards6. Ottawa, Ontario: Canadian Geotechnical Society.
@inproceedings{Fiebelkorn_GeoHazards6_185,
author = {{Fiebelkorn, Jeremy Leigh}, {Alfaro, Marolo}, {Graham, Jim}}
title = {Slope failure in clay shale in western Manitoba: a case study }
booktitle = {Proceedings of the 6th Canadian Geohazards Conference}
year = {2014}
organization = {The Canadian Geotechnical Society},
address = {Ottawa, Canada} }
title = {Slope failure in clay shale in western Manitoba: a case study }
booktitle = {Proceedings of the 6th Canadian Geohazards Conference}
year = {2014}
organization = {The Canadian Geotechnical Society},
address = {Ottawa, Canada} }