Caratterizzazione geotecnica e mineralogica di depositi vulcanici alterati soggetti a fenomeni di scivolamento nell'area pedemontana della Provincia di Vicenza

The main aim of this study is to investigate triggering mechanism of landslides which widely affect altered volcanic rocks outcropping in the Italian pre-Alps of Vicenza province. To this end, geotechnical and mineralogical tests were performed. The results show how the variation of mineralogical properties of the soils influences the stability of the involved slopes. Based on this finding, numerical simulations have been carried on to evaluate the influence of mineralogical properties on the decay of strength parameters.