Mechanism of active landslides in flysch

Abstract

Triggering mechanisms and active landslide dynamics are to a large extent a function of rock and soil types involved. Among different types of active landslides in Slovenia, in the last few years, those in flysch have been of specific research interest. Different field and laboratory investigations have been carried out on several active landslides in flysch, mainly on the Slano Blato landslide in SW Slovenia. The research activities have been focused on the prevailing mechanisms of active landslides in flysch, specifically they have been directed into investigations on soil suction and its relationship with water content and shear-strength characteristics. These research activities have been carried out in the framework of the World Center of Excellence "Mechanisms of landslides in over-consolidated clays and flysch" of the Faculty of Civil and Geodetic Engineering of the University of Ljubljana, and the IPL-151 Project "Soil matrix suction in active landslides in flysch - the Slano Blato landslide case". This paper presents the main results obtained.