Website Université Laval
Département de géologie et de génie géologique
The St. Lawrence Valley is characterized by post-glacial marine and lacustrine clay deposits that are sensitive to landslides. One of the important factors responsible for the development of such landslides is the increase of interstitial pressures due to infiltration of water into the soil. This infiltration is more important when the snow melts in the spring or during extreme weather events, such as heavy rainfall, which reduces the effective stress of the soil. In the context of climate change, these extreme weather events are likely to occur more often.
As part of a research project with the Quebec Ministry of Public Security and the Ministry of Transport, a major research project was undertaken to deploy a network to monitor pore pressures near clay slopes. This project allows the unprecedented acquisition of interstitial pressure data with high temporal and spatial resolution.
For two of the sites weather stations, heat flux plates, soil moisture, temperature and tension probes were deployed in the soil to monitor water infiltration. One of these site is in sandy/silty soil while the other is fractured clay, and both experience seasonal frozen conditions.
The objective for this project is to better understand the dynamics of water infiltration and to predict its evolution in the context of climate change. Specific attention will be given to the implications for pore pressure evolution and slope stability within underlying clay deposits. The project will rely on field observations, laboratory experiments and numerical modelling.
We are looking for candidates with backgrounds in Earth sciences or engineering and with an interest in numerical modelling, heat transport, programming, hydrogeology and/or geotechnics. The fellow will be part of a dynamic team of researchers and students within the Natural Hazards Laboratory (http://www.lern.fsg.ulaval.ca/accueil/) along with governmental researchers.
The position is offered for one year and may be renewed for another year. The expected start date is as soon as possible.
To apply, please send your CV and a cover letter summarizing your relevant experience and interest in the project.
For more information:
Jean-Michel Lemieux, Professor
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