TITLE:
Landslide Characterization Using Satellite Interferometry (PSI), Geotechnical Investigations and Numerical Modelling: The Case Study of Ricasoli Village (Italy)
AUTHORS:
Ascanio Rosi, Pietro Vannocci, Veronica Tofani, Giovanni Gigli, Nicola Casagli
KEYWORDS:
Landslide; Geotechnical Characterization; Interferometry; PSInSAR
JOURNAL NAME:
International Journal of Geosciences,
Vol.4 No.5,
July
17,
2013
ABSTRACT: Ricasoli is a village
located in a morphological high in the Upper Arno river Valley (Tuscany), an
area historically subject to widespread slope instability phenomena. This morphological high and the
surrounding slopes result to be affected by numerous landslides, which cause
the retreat of the escarpments surrounding the village, involving infrastructures
and buildings. To better understand the behaviour of these phenomena a complete
characterization, in terms of kinematics, mechanical properties and triggering
conditions, of the landslides has been carried out. With this aim several
boreholes, equipped both with inclinometer and piezometers, have been drilled
and a number of samples have been collected and analysed. In addition to the traditional
analysis, the radar
satellite interferometry has been used to evaluate the evolution of the landslides
and its correlation with rainfalls; furthermore a finite difference numerical
modelling has been carried out to investigate the kinematics of the landslides
and the deformation pattern.