Investigating the impact of the climatic boundary conditions on the landslide reactivation of a clay slope: the Fontana Monte case study
Investigating the impact of the climatic boundary conditions on the landslide reactivation of a clay slope: the Fontana Monte case study
The slope-vegetation-atmosphere (SLVA) interaction is considered the trigger of deep landslide activity in several clay slopes in the Italian Southern Apennines, where reactivations are associated to seasonal piezometric excursions connected to weather, influencing the water infiltration through the slope surface, as well as the hydraulic recharge of deep aquifers. The present paper reports an advancement in the SLVA interaction simulation of a prototype slope, the Fontana Monte slope (Volturino, Italy), aimed at investigating the influence of the climatic hydraulic boundary conditions (HBCs) on both the piezometric fluctuations and the landslide reactivations. Transient uncoupled hydraulic (H) simulations associated to limit equilibrium (LE) analyses have been conducted by implementing the total rainfall time history occurring in the 2008-2020 monitored time as inflow flux and the evapotranspiration of two different plant types covering the slope surface as outflow flux. The H+LEM results show the extent to which the implementation of appropriate HBCs might provide accurate piezometric head fluctuations for a reliable prediction of the timing of landslide reactivations.
A. di Lernia; G. Elia; F. Cotecchia
10th European Conference on Numerical Methods in Geotechnical Engineering (NUMGE2023)
7. Dams, embankments and slopes
https://doi.org/10.53243/NUMGE2023-302
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