"Geotechnical descriptions of landslides during the 1993-1994 floods in Northern Italy"

In Sept. 1993 and November 1994 two exceptional rainfalls occurred in Northern Italy. Due to these events, and in particular to the second, a very relevant number of slope instabilities occurred in the same area, especially in the Piedmont region of Northern Italy. The number of landslides has been very high - some hundreds - and those that involved large volumes of unstable rock or soil masses were some tens. Some of the landslides also involved civil works. It is important to notice that environmental, geological and geotechnical features are all elements necessary for a correct evaluation of the analysis of these phenomena; the need to agree on a general approach in order to recognize the slope movement types, to evaluate the economic impact of the damage, to perform the field investigations and the monitoring systems and eventually to carry out the remedial works is also necessary. This paper presents a general overview of the described phenomena.