This decommissioned ERA site remains active temporarily to support our final migration steps to https://ualberta.scholaris.ca, ERA's new home. All new collections and items, including Spring 2025 theses, are at that site. For assistance, please contact erahelp@ualberta.ca.
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Fall 2017
An unconventional slope stabilization technique locally known in Alberta as “Hardy Ribs” or “Hardy Walls” was implemented by Canadian National Railway Company (CN) to stabilize a very slow moving landslide. This site is located along the Assiniboine River valley in western Manitoba at CN Mile...
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Fall 2017
Rail transportation is a vital component of Canada’s economy, with great distances separating urban centres. Disruptions to rail service can have costly implications, not only in terms of monetary loss, but also to the environment, the public and railroad employees. Derailments account for a...
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Development of a 3D Equivalent Continuum Model for Deformation Analysis of Systematically Jointed Rock Masses
DownloadFall 2013
Deformability of jointed rock masses are potentially anisotropic and non-linear due to existence of the discontinuities intersecting the rock matrix. Models to analysis the deformation of jointed rock masses are divided into two main categories: discontinuum models and equivalent continuum...
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Spring 2012
Direct shear tests were used to establish the shear behaviour of continuous planar-joints, discontinuous stepped-joints and discontinuous open-joints. The joints were cast in a Synthetic rock made of plaster, sand and water and tested under normal stresses that ranged from 50 kPa to 3.5 MPa. A...
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Estimating Rock Strength of Moderately Fractured EDZ in Hard Rock Tunnels: Äspö Hard Rock Laboratory
DownloadFall 2014
Underground openings create various excavation-induced responses. The most noticeable response is the readily observed excavation damaged zone (EDZ) where the mechanical properties of the rock mass have been irreversibly altered, i.e., damaged. Within this damaged zone the stresses and...
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Fall 2016
The Ripley Landslide is one of several slow moving landslides in the Thompson River Valley, near Ashcroft, British Columbia. Both the Canadian Pacific and Canadian National Railway main lines cross this landslide. As a result, the site is an important part of Canada's transportation network and...
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Landslide Mitigation Using Granular Shear Keys: Observations from a Review of 38 Case Studies
DownloadFall 2017
Canadian transportation industries have been using granular shear keys to remediate shallow slope instabilities for decades. Engineers have used limit equilibrium (LE) analyses as the standard method for designing these granular shear keys (Wyllie & Mah, 2004). These LE analyses do not account...
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Fall 2010
Lihir Gold Mine in Papua New Guinea is one of the largest gold mines in the world situated in a seismically sensitive zone. The gold deposit is located in an extinct volcano in close proximity to the sea shore and presents a series of geohazards. Some geohazards are uncommon and include:...