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Étude d’une coulée argileuse avec une approche à rebours et le recensement des glissements historiques

Francois Saint-Pierre, Andre Rancourt

In the proceedings of: GeoVirtual 2020: 73rd Canadian Geotechnical Conference

ABSTRACT: The Champlain River and its tributaries are located in the Champlain Sea formation and is the scene of a retrogressive clay slump and lateral spreading. In April 2017, a typical retrogressive clay landslide occurred in the town of Saint-Maurice, in the Province of Quebec. An aerial lidar survey was carried shortly after the slump. An extensive geotechnical borehole investigation was conducted in 2018. These data acquisition have allowed to validate our reverse landslide modelling. Finally, with ETL type software (Extract, Transform, Load) and using an algorithm of data classification from lidar aerial survey, scars of older landslides were revealed. Our case study demonstrates that the longest historical slump spread observed on the bank of a tributary of the Champlain river is 57 m.


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Cite this article:
Saint-Pierre, Francois, Rancourt, Andre (2020) Étude d’une coulée argileuse avec une approche à rebours et le recensement des glissements historiques in GEO2020. Ottawa, Ontario: Canadian Geotechnical Society.

@article{Saint-Pierre_GEO2020_183, author = Francois Saint-Pierre, Andre Rancourt,
title = Étude d’une coulée argileuse avec une approche à rebours et le recensement des glissements historiques ,
year = 2020
}