Abstract

The paper reports the results of a slope-atmosphere interaction analysis performed with referenceto geo-hydro-mechanical conditions typically observed on the Southern Apennines (Italy). The aim ofthe analysis is to gain some understanding in the characterisation of climatic variables employedto identify instability thresholds in clay slopes. A seepage analysis was undertaken first, showingthat Mediterranean climates can produce significant pore-pressure changes also at depths notusually considered to be affected by atmospheric conditions. Based on the results of the seepageanalysis, limit equilibrium analyses were carried out for a 5 m and a 20 m deep landslide, confirmingthat also deep movements in clay slopes can be related to slope-atmosphere interaction.The characterisation of climatic variables aimed at identifying instability thresholds is finallydiscussed based on the analyses reported in the paper. The results show that net rainfall cumulatedover 2 and 6 months represent suitable climatic variables for the 5 m and the 20 m deep landslide,respectively. These findings suggest that the stability of a clay slope, when referred to shallowmovements, is likely to depend on the rainfall infiltrating over a few weeks at least. When deepmovements are considered, the stability seems to depend more on the rainfall gradually infiltratingduring the most rainy seasons

Autore Pugliese

• Trizzino Rosamaria

Tutti gli autori

• G. Pedone; G. Ruggieri; R. Trizzino

Titolo volume/Rivista

Ge´otechnique letters

Anno di pubblicazione

2018

ISSN

2045-2543

ISBN

Non Disponibile

Numero di citazioni Wos

Nessuna citazione

Ultimo Aggiornamento Citazioni

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Numero di citazioni Scopus

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Ultimo Aggiornamento Citazioni

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Settori ERC

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Codici ASJC

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