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Assessing the strength and bearing capacity of tailings for oil sands reclamation

Wednesday, January 22, 2024 Assessing the strength and bearing capacity of tailings for oil sands reclamation by Abigail Paul Abstract: Capping is an approach to oil sands tailings reclamation which involves placing material such as tailings sand or petroleum coke on the surface to reclaim the deposit as an upland or wetland landform. Critically, this requires the tailings deposit to have sufficient strength, density, and bearing capacity. A laboratory testing program and a review of existing published data was undertaken to investigate key properties of oil sands tailings for capping with a focus on the use of index tests to predict geotechnical properties. The results of this research program support the idea that index properties such as Atterberg limits can provide a cost-effective method for long-term monitoring and the preliminary design of capped deposits. Bio: Abby is a PhD student in geoenvironmental engineering at the University of Alberta. Her current research focuses on incorporating the risks of climate change in the design of mine waste cover systems. In 2024, she completed an MSc in geoenvironmental engineering which assessed methods for predicting properties of oil sands tailings for capping and reclamation.