NSERC/Hydro-Quebec Industrial Research Chair in Life Cycle Optimization for Embankment Dam, Laval University
This research is to develop tools to analyse and predict the behaviour of embankment dams.
- improve our understanding of the behaviour of materials used in embankment dams, particularly in the event of an earthquake;
- characterize the hydric, thermal and mechanical behaviours of embankment dam materials, such as till, sand and gravel used as filter and rockfill;
- model and predict the behaviour of embankment dams under normal and exceptional conditions, such as during an earthquake;
- facilitate the interpretation of data collected during the monitoring of the structures;
- develop selection criteria for materials to optimize the service life of dams;
- establish criteria for the inspection of embankment dams.
For a list of papers and theses related to this research, please click here.
The scope of work for this research project at the Robert M. Buchan Department of Mining Engineering dealt with the “Evaluation of the potential for piping of tailings through a hole into a geomembrane and into the underlying foundation”. The research took place over three years and involved the study of liner design for tailings impoundments. The research is complete and results will be published soon.
In 2015, KCB started a multi-year agreement with the Environment Centre of the Sustainable Minerals Institute (SMI) to advance our understanding of the long-term behaviour of mine tailings.
Researchers Dr. Thomas Baumgartl and Dr. Mansour Edraki will lead the work, which focuses on assessing the impact of repeated wetting-drying cycles on the aging of mine tailings. In finalizing our agreement, Dr. Baumgartl said there is a lack of knowledge on the impact of aging tailings on the water and geochemical balance of tailings storage facilities. He indicated that there is a need for research to quantify the hydrological, geomechanical and geochemical characteristics of mine tailings, while taking into account the influence of tailings consolidation and weathering effects as tailings age. This research will lead to a better understanding of the long-term behaviour of tailings and how industry manages such a crucial part of the mining process through the mine life cycle.
KCB is supporting an important research project on Soil-Specific Cone Penetration Test Interpretation Framework for Tailings. The goal is to improve current understanding and practice in assessing liquefaction of tailings. This project is also funded by Ontario Centres of Excellence and NSERC-Engage. Dr. Mason Ghafghazi, Principal Investigator, and his students will be conducting the research for this project.