A multidisciplinary approach to landslide modelling: the case of Campodenno, north-eastern Alps, Italy

Campodenno village, laying in the central-western part of the Trentino Region (Northern Italy), is affected by composite landslide phenomena that cause heavy damages to buildings and public facilities. The purpose of the present work was the definition of a complete geological model, to be used to perform stability analyses of sliding slopes. In order to carry out a valid slope stability analysis a complete and reliable geological and geotechnical model of the landslide slope must be performed. All the previous available data, then, have been collected and re-interpreted. The integration of all these data allowed the definition of a preliminary geological and geotechnical model of the slope that, however, resulted to be affected by some uncertainties as regards mainly the spatial distribution of different stratigraphical levels. Because of these uncertainties, some geophysical surveys have been carried out in order to investigate the lateral continuity and hydrogeological properties of the stratigraphic layers and also the thickness of the sliding material. Geoelectrical, seismic and magnetotelluric surveys have been carried on and the interpreted results compared and integrated with the already existing data. In that way, reliable geological models of the Campodenno slopes have been realized to be used for stability analysis purposes.