ABSTRACT
The characteristics of the 1992 Tessina landslide make it appropriate for modelling by means of ‘‘Smoothed particle hydro-dynamics’’ method. This chapter aims to investigate the evolution and dynamics of the 1992 Tessina landslide and present future hazard scenarios based on potential volumes of masses mobilised in the future. The Tessina landslide, which was first triggered in October 1960, is a complex movement with a source area affected in the upper sector by rotational slides; downhill the slide turns into a mud flow through a steep channel. The numerical simulation considered that, the whole mass involved in the landslide detaches instantaneously. In reality the cohesion inside the unstable mass is lost little by little: in future advances of the model, the aspect would be taken into account by assuming initial high viscosity of unstable mass and decreasing it gradually up to a complete fluidity state.
