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Failure mechanism of a prehistoric landslide in Champlain Sea clay at Breckenridge, Quebec

Baolin Wang

Dans les comptes rendus d’articles de la conférence: GeoEdmonton 2018: 71st Canadian Geotechnical Conference; 13th joint with IAH-CNC

Session: Landslides and Geohazards II (Liquefiable Soils)

ABSTRACT: This paper discusses the failure mechanism of a prehistoric landslide at Breckenridge, Quebec. The landslide is a Champlain Sea clay failure triggered by an earthquake about 1020 cal yr BP. Field and laboratory test data and other evidence indicate that the landslide likely occurred as a translational failure of the overall slope rather than a retrogressive failure as is commonly observed in sensitive clays. Slope stability analysis indicates that a threshold ground acceleration of 0.28 g is required to trigger the landslide. The findings provide knowledge about sensitive clay failure process as well as prehistoric seismicity in the region.


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Citer cet article:
Wang, Baolin (2018) Failure mechanism of a prehistoric landslide in Champlain Sea clay at Breckenridge, Quebec in GEO2018. Ottawa, Ontario: Canadian Geotechnical Society.

@inproceedings{Wang_GEO2018_144, author = {{Wang, Baolin}}
title = {Failure mechanism of a prehistoric landslide in Champlain Sea clay at Breckenridge, Quebec }
booktitle = {Proceedings of the 71st Canadian Geotechnical Conference; 13th joint with IAH-CNC }
year = {2018}
organization = {The Canadian Geotechnical Society},
address = {Ottawa, Canada} }
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