Landslide fluidization: when, how, why? (2024)

Project description

The aim of this project is to gain a better understanding of the physical mechanisms at work during the slip-flow transition in clays. To achieve this, a multi-physics and multi-scale approach will be implemented on the Harmalière landslide (a few m to a few hundred m) and in the laboratory (a few µm to a few cm), and multi-source data will be jointly interpreted (geophysics, geodesy, hydro-meteorology, geotechnics). The second objective of the project is to define a geotechnical and/or geophysical parameter sensitive to the solid-fluid transition, identifiable from existing tools and/or in situ testing procedures developed in the first point (geophysical and geotechnical), with a view to developing its/their use for landslide monitoring.