Rockfall net fences are multicomponent protection devices for mitigating rockfall hazard. As passive measures, they are used to intercept and stop rock blocks propagation after their detachment from a cliff or a slope. During their design working life, net fences subjected to ageing phenomena, corrosion and impact loads, causing their efficiency loss or even their effectiveness. A multi-matricial procedure...

The network monitoring system, which has been in operation on the Idro landslide, for several years, shows an average movement of 3 cm to 6 cm a year and defines a displacement area of approximately 270.000 m2. The volume estimation of the landslide is about 5 million cubic meters. The acceleration of the landslide movement is related to the raising of the water table which is linked to increased rainfall....

Rockfall net fence are a widely adopted rockfall risk mitigation measures, suitable for the great majority of the cases. Nevertheless, in particular complex morphologies, the trajectories of the possible detached blocks can be anomalous, with very high values of both the kinematic parameters of passing height and kinetic energy. In this case, a double line of net fence can be a convenient solution. In...

Rockfall net fences and drapery meshes constitute two of the most adopted protective structural works against rockfall hazard. During their life, they are subject to ageing, corrosion, and impact loads, with a consequent loss of efficiency or even effectiveness. Due to the variability of the environment and, more in general, to external conditions, a definition of a service life, although not unique but...