Applicazione di una metodologia sistemica per la valutazione della suscettibilità al dissesto dei versanti tufacei del Comune di Napoli

Abstract

It is here described a study which deals with the analysis of landslide susceptibility related to the tuff slopes in Naples, Italy. This type of instability has an important role in the hydro-geological emergencies which affected the city both in historical times and in recent years. The developed GIS algorithm is based on a system model, named RES (Rock Engineering Systems – Hudson, 1992), which accounts for the interactions among the factors involved into the analysed system. Survey campaigns and in situ tests have been carried up to collect the data necessary to allow the characterization of rock masses using classification methods recognized by the International Society of Rock Mechanics. Finally, using the RES a landslide susceptibility index has been estimated for the tuff slopes, which allowed to create the related map. The work here illustrated is part of a larger framework which aim is to create an Integrated Geographic Information System to study the hydro-geological risk in Naples’ territory. This System, hopefully enriched with new thematic layers, while providing the basis for future researches in the field, can also provide local decision-makers and community planners with the scientific and technological support for decisions involving management of risks and urban development.