ABSTRACT
This work shows the results of a study of a great and complex landslide that occurred at Pescosansonesco (central Italy). The lithological and structural setting of the rock mass controls the mechanical evolution of the landslide. The presence of active trenches and important joints divided the slope in big blocks that evolve in complex landslides. A geo-mechanical characterisation have been executed utilising both field measurements and experimental photogrammetric methodologies. By the field measurements we have obtained the definition of the principal discontinuities that have been graphicised by spherical projections. The photogrammetry has been utilised to study the major discontinuities located in partially accessible places of the slope for the high acclivity. Moreover the photogrammetric methodology was previously tested comparing it with field measurements. The photogrammetry helped us to obtain the full outline of the evolution of the whole rock mass, recognising the areas with different rupture kinematics.
