Slope Stability Evaluation and Monitoring using Petrophysical Data

Albania is a mountainous country and Albanides are represented geological structures with possibilities of instable slopes and landslide development (Fig. 1). Based on the geological formations and landslide body mass, can be present following landslide classification in Albania: - Instable slopes and intensive landslides developed in weathered bedrocks and in overburden bed at the lakeshores of hydropower plants. - Instable slopes and intensive landslides developed in Oligocene flysch formation. - Instable slopes and landslides developed in Neogene’s molasses formations. - Landslides developed in loose Quaternary deposits. - Downfalls in the weathered rocks Developing of new landslides or re-activation of the old ones is mainly due to construction works. Special constructions, such as hydrotechnical works, civil, industrial, urban and rural constructions and constructions in the infrastructure, particularly during last years, as well as destroyed equilibrium in ecological systems through deforestation etc., all these events have contributed to landslide development. Landslides are located in the deluvial deposits, and in the altered-bedrocks. The slipping bodies of some landslides have very big volume, more 50 than million cubic meters. The biggest ones are observed near of hydrotechnical works.