ABSTRACT

This typical situation is often encountered on Alpine or Pre-alpine slopes which have been affected by glacial retreat approximately ten thousand years ago. The observed movements, provided they have been identified and monitored over long periods, are generally fairly regular, but some occasional accelerations may occur which last for a short period of several months to a few years. Their specificity is mainly their surface extension, from 1 to 40 km2, and their gentle morphology, thus inducing the population to use this apparently favourable land for settling villages on slopes with a shallow gradient and developers to build infrastructures such as roads and cable cars (see Fig. 2.1 showing the Lugnez landslide).