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.

RÉSUMÉ: ar un séisme survenu il y a 1200 probants indiquent que ce glissement a probablement été causé par un effondrement plan de la pente globale et non par -seuil du sol de 0,28 g fut nécessaire pour enclencher le glissement. Ces conclusions nous

Retrouver cet article:
Les membres de la Société canadienne de géotechnique peuvent accéder à cet article, ainsi qu'à tous les autres articles de la Conférence Géotechnique Canadienne, dans le Espace membre. Les comptes rendus d'articles sont également disponibles dans de nombreuses bibliothèques.

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

@article{geo2018Paper144,author = Baolin Wang,title = Failure mechanism of a prehistoric landslide in Champlain Sea clay at Breckenridge, Quebec ,year = 2018}