Advancing Culture of Living with Landslides by Matjaž Mikoš Željko Arbanas Yueping Yin & Kyoji Sassa

Author:Matjaž Mikoš, Željko Arbanas, Yueping Yin & Kyoji Sassa
Language: eng
Format: epub
Publisher: Springer International Publishing, Cham

Case Studies

Mont de La Saxe Landslide

The Mont de La Saxe rockslide is located in the upper part of Valle d’Aosta region at the extreme SW termination of a deep-seated gravitational slope deformation (DSGSD), which occupies the terminal sector of the left-hand side of the Ferret Valley. Here, rockslide deformations clearly displace gravitational morphostructures (scarps, counterscarps, trenches) related to the DSGSD, whose SW–NE rectilinear trend appears strongly disturbed or obliterated inside the rockslide area.

The rock slide dimension is of about 8 × 106 m3, extends between 1400 and 1870 m a.s.l., over in area of 150,000 m2 with a horizontal length of about 550, maximum width of 420 m, and average slope gradient of 37° (Fig. 3). The upper scarp is about 200 m wide and it is characterized by a steep rock wall some tens of meters high, locally oriented along subvertical schistosity planes (Crosta et al. 2014) (Fig. 1).

Fig. 1Location of two case studies in Italy; the first one, Mont de La Saxe landslide in upper Valle d’Aosta Region (red triangle) and the Ruinon landslide (light blue triangle), in upper Valfurva valley (Lombardia region)

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