Abstract
A wide area around the town of Naples is mantled by shallow unsaturated volcanoclastic soils that are highly susceptible to fast rainfall-induced flow-like landslides. Some casualties and huge damage recorded in the last twenty years testify the serious threat posed by such events. Due to the impact of these phenomena, the local research community is strongly committed in studies whose results have allowed to understand some key aspects of the triggering and propagation mechanisms. However, the way to run for risk mitigation is still long: given the density of population and of infrastructure, the setting up of reliable early warning systems would be a fundamental tool to this aim. Based on a rich data-base about the features of the rainfall-induced landslides in unsaturated volcanoclastic soils occurred on January, 10th, 1997, in a small area located in the Sorrento peninsula, and the history of precipitations occurred in the same area in the last fifty years, the paper examines the relation between rainstorms and landslides, showing the fundamental role of the recent precipitation history.
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References
Calcaterra D, Santo A (2004) The January 10, 1997 Pozzano landslide, Sorrento Peninsula Italy. Eng Geol 75:181–200
Cascini L, Sorbino G, Cuomo S, Ferlisi S (2014) Seasonal effects of rainfall on the shallow pyroclastic deposits of the Campania region (southern Italy). Landslides 11:779–792
Comegna L, Damiano E, Greco R, Guida A, Olivares L, Picarelli L (2015) Investigation on the hydraulic hysteresis of a pyroclastic deposit. In: Proceedings of the international workshop on Volcanic Rocks and soils, 24–25 September 2015. Lacco Ameno, Ischia Island, pp 161–162
Comegna L, Damiano E, Greco R, Guida A, Olivares L, Picarelli L (2016a) Field hydrological monitoring of a sloping shallow pyroclastic deposit. Can Geotech J 53(7):1125–1137
Comegna L, Rianna G, Lee G, Picarelli L (2016b) Influence of the wetting path on the mechanical response of shallow unsaturated sloping covers. Comput Geotechnique 73(3):164–169
Di Crescenzo G, Santo A (1999) Geomorphologic analysis of the slide-flows in the pyroclastic deposits of the Sorrento Peninsula (Campania). Geogr Fis Din Quat 22:57–72 (in Italian)
GEO-SLOPE International Ltd. (2012) SEEP/W user’s guide. Canada
Olivares L, Picarelli L (2001) Susceptibility of loose pyroclastic soils to static liquefaction: some preliminary data. In: Proceedings of the international conference landslides—causes, impacts and countermeasures. Davos, pp 75–85
Olivares L, Picarelli L (2003) Shallow flowslides triggered by intense rainfalls on natural slopes covered by loose unsaturated pyroclastic soils. Geotechnique 53(2):283–288
Picarelli L, Evangelista A, Rolandi G, Paone A, Nicotera MV, Olivares L, Scotto di Santolo A, Lampitiello S, Rolandi M (2007) Mechanical properties of pyroclastic soils in Campania Region. In: Proceedings of 2nd international workshop on characterisation and engineering properties of natural soils, vol 3. 29 November–1 December 2006, Singapore, pp 2331–2383
Pirone M, Papa R, Nicotera MV, Urciuoli G (2014) Evaluation of the hydraulic hysteresis of unsaturated pyroclastic soils by in situ measurements. Procedia Earth Planetary Sci 9:163–170
Rianna G, Pagano L, Urciuoli G (2014) Investigation of soil-atmosphere interaction in pyroclastic soils. Journal of Hydrology 510:480-492
Richards LA (1931) Capillary conduction of liquids through porous mediums. Physics 1(5):318–333
Urciuoli G, Pirone M, Comegna L, Picarelli L (2016) Long-term investigations on the pore pressure regime in saturated and unsaturated sloping soils. Eng Geol 212:98–119
van Genuchten T (1980) A closed-form equation for predicting the hydraulic conductivity of unsaturated soils. Soil Sci Soc Am J 44:892–898
Vanapalli SK, Fredlund DG, Pufahl DE, Clifton AW (1996) Model for the prediction of shear strength with respect to soil suction. Can Geotech J 33:379–392
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Comegna, L., De Falco, M., Jalayer, F., Picarelli, L., Santo, A. (2017). The Role of the Precipitation History on Landslide Triggering in Unsaturated Pyroclastic Soils. In: Mikoš, M., Casagli, N., Yin, Y., Sassa, K. (eds) Advancing Culture of Living with Landslides. WLF 2017. Springer, Cham. https://doi.org/10.1007/978-3-319-53485-5_35
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DOI: https://doi.org/10.1007/978-3-319-53485-5_35
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