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Typology of Landslides, Investigation and Monitoring in Flysch Deposits in Albania



Author(s)

Skender Allkja¹, Ardita Malaj¹, Luljeta Bozo², Lorena Harizaj³, Besian Xhagolli⁴ and Ani Kosho⁵

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DOI:10.17265/2328-2193/2018.01.004

1. ALTEA & Geostudio 2000company, Tirana 1000, Albania
2. Department of Geotechnical Engineering, Polis University, Tirana 1000, Albania
3. ALTEA & Geostudio 2000company, Tirana 1000, Albania
4. ALTEA & Geostudio 2000company, Tirana 1000, Albania
5. Devoll Hydropower company,Tirana 1000, Albania

The development of infrastructure, energy and tourism in recent years in Albania has brought the necessity of geotechnical studies to a higher technical level. Most of these buildings (hydropower, motorway, pipeline) are built in mountainous areas with complicated geological conditions. The most complicated obstacles seem to be huge landslides, especially for those situated on flysch deposits. Most of the huge landslides were innate and active by the end of Pleistocene; however, some of them, especially those in flysch areas, are activated due to recent changes of climate and intensive man activities. Examples of re-activation of old landslides are encountered on Qukes-Qafe Plloçe road, on Devoll river valley which are being built several hydropower and on Poliçan-Potom area where a gas line is built. These landslides are under design investigations using field and laboratory methods like drilling, inclinometers and piezometers measurement, geophysical probing, rock and soil testing. All slopes with flysch rocks in Albania have low stability because of the presence of active landslides. In any case they should be studied using advanced geotechnical methods and monitored for long time in order to take the right protective measures.

Inclinometers, landslide, monitoring, mudstone, sandstone.