ABSTRACT
In agreement with the regional agencies charged to supervise the environment, geognostic inspections have been carried out to operate a monitoring installation in order to control the evolution of the landslide. The Italian Company of the Frejus Motorway Tunnel is involved since more than ten years in the monitoring of the Serre La Voute landslide, one of the most important cases of slope sliding in the western section of the Alps. The activities performed have allowed us to determine the evolutionary trend of the landslide and, consequently, to improve over the time the monitoring methodology. The monitoring performed over more than ten years has allowed us to recognise the geometry of the landslide body and the evolution of its movement. Using the information collected during the investigation phases, the status of equilibrium of the landslide body has been verified by mathematical modeling.
