Posted: August 15, 2019
Anticipated start: September 2020
Supervisory team: Jocelyn Hayley (University of Calgary), Brian Moorman (University of Calgary), Pascale Roy- Léveillée (Laurentian University) and Stephan Gruber (Carleton University)
This project seeks to understand the strength and thaw consolidation characteristics of permafrost sediments through a comprehensive laboratory program. Starting with existing laboratory data, both published and from industry where available, we will build a geotechnical permafrost soils database in collaboration with the other projects in the network. The specific data gaps, the quality and reliability of the data will inform the direction of the experimental program, adding to previous databases that have compiled mostly geotechnical index properties. Using synthesized permafrost sediments constructed in the laboratory from reconstituted soil samples, we will then perform strength and thaw consolidation testing in triaxial and oedometer apparatus under controlled temperature conditions. Through careful and comprehensive mixing of soil types, ice contents, and temperature conditions, we will build out the geotechnical permafrost soils database, drawing on other projects for the characterisation of thawing behaviour. Further validation of the experimental results will include testing on undisturbed intact soil samples obtained from permafrost coring collected by network participants. Candidates should have a strong background in geotechnical (civil) or geological engineering.
To apply, send a cover letter, c.v., copies of transcripts and contact details for three references to Jocelyn Hayley (firstname.lastname@example.org) using Permafrost MSc in the subject line.