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Permanent link (DOI): https://doi.org/10.7939/R3G15TH9F

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Landslides at Rock Glacier Site, Highwood Pass, Alberta Open Access

Descriptions

Author or creator
McAffee, R. P.
Cruden, D. M.
Additional contributors
Subject/Keyword
Rock slide
Slope stability
Rupture surface
Topple
Rocky Mountains
Rock fall
Type of item
Journal Article (Published)
Language
English
Place
Time
Description
Abstract: Twenty topples are described from Rock Glacier Site, 2 km north of the summit of the Highwood Pass in the Front Ranges of the Rocky Mountains in Alberta. In situ field testing and laboratory tests indicated that the external force driving the toppling process is frost action within a weathered shale zone. A stability analysis of the slope included examining rock falls, rupture surface formation, and slides. Rock falls were the dominant mode of landsliding. Surfaces of rupture develop when the amount of angular rotation of the toppling rock mass is over 16 degrees. Slides along continuous surfaces of rupture are possible in rock masses with no cohesion and reduced friction angles. Topples cause rock falls, which lead to shallow slides in the rock-fall colluvium.
Date created
1996
DOI
doi:10.7939/R3G15TH9F
License information
Rights
© 1996 NRC Research Press (Canadian Science Publishing). This version of this article is open access and can be downloaded and shared. The original author(s) and source must be cited.
Citation for previous publication
McAffee, R. P., & Cruden, D. M. (1996). Landslides at Rock Glacier Site, Highwood Pass, Alberta. Canadian Geotechnical Journal, 33(5), 685. DOI: 10.1139/t96-095-316.
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