1,721,094 research outputs found
Regional rainfall and hydrological thresholds for landslide occurrence. Examples from New Zealand and central Italy
No full textRock-fall hazard assessment along a road in the Sorrento Peninsula, Campania, southern Italy
No full textRockfalls are common in the steep and vertical slopes of the Campania carbonate
massifs and ridges, and frequently represent the main threat to the anthropogenic
environment, potentially damaging urban areas, scattered houses, roads, etc. Despite the
generally limited volumes involved, the high velocity of movement (from few to tens of
metres per second) poses rockfalls among the most dangerous natural hazards to man.
Evaluating the rockfall hazard is not an easy task, due to the high number of involved
factors, and particularly to the difficulty in determining the properties of the rock mass. In
this paper, we illustrate the assessment of the rockfall hazard along a small area of the
Sorrento Peninsula (Campania region, southern Italy). Choice of the site was determined
by the presence of a road heavily frequented by vehicles. In the area, we have carried out
detailed field surveys and software simulations that allow generating simple rockfall
hazard maps. Over twenty measurement stations for geo-mechanical characterization of the
rock mass have been distributed along a 400-m-long slope of Mount Vico Alvano. Following
the internationally established standards for the acquisition of rock mass parameters,
the main kinematics have been recognized, and the discontinuity families leading to
the different failures identified. After carrying out field experiments by artificially releasing
a number of unstable blocks on the rock cliff, the rockfall trajectories along the slope were
modelled using 2-D and 3-D programs for rockfall analysis. The results were exploited to
evaluate the rockfall hazard along the threatened element at ris
Regional hydrological thresholds for landslides and floods in the upper Tiber River basin of central Italy
No full textRegional rainfall and hydrological thresholds for landslide occurrence. Examples from New Zealand and central Italy
No full textThe Comparison of Hydrologic Distributed Models Computed Using Different Digital Elevation Data. An Example in the Umbria Region, Central Ital
No full textRegional hydrological thresholds for landslides and floods in the upper Tiber River basin of central Italy
No full text
- …
