ABSTRACT
The large Avignonet landslide is located in the Trieves area (French Alps) which is covered by a thick layer of glacio-lacustrine clay. The slide is moving slowly at a rate varying from 1 cm/year near the upper scarp to over 13 cm/year at the toe. The emergence of 2D and 3D geophysical imaging techniques, easy to deploy on slopes and investigating a large volume in a non-invasive way, has made more attractive the geophysical methods for landslide applications. One of the key factors controlling the success of geophysical techniques is the existence of a contrast differentiating the landslide body to be mapped. The chapter aims to test the sensitivity of the main geophysical parameters to the clay deformation generated by the landslide of Avignonet where geotechnical and geodetic data are available. The large Avignonet slide located in the Trieves region was studied.
