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THE THREAT OF LANDSLIDES AND ITS IMPACT ON THE ENVIRONMENT AND INFRASTRUCTURE CONDITION

Wanda Kokoszka, Izabela Skrzypczak, Janusz Kogut

Abstract

In the classification of natural disasters and hazards that occur all over the world, landslides are in the fifth place, both as far as number of casualties and material losses. Landslides are processes that lead to natural disasters or technical failures, the consequences of which threaten life, health and property of people. Continuous monitoring and evaluation of the risk seems to be a very important issue in preventing effects of this natural disasters. This paper therefore discuss the causes of landslides with their classification and examples of landslides and damage caused by them in south-eastern Poland. There also will be given compounds of occurrence of landslides associated with climate changes, as well as geological and anthropogenic factors. There will be shown the methods of assessment of risk in case of landslide threat. The treat analysis developed here is presented for selected landslides located in Subcarpathian region of Poland. The widespread occurrence of landslides in Subcarpathian region determines the presence of the substrate made of flysch. The vulnerability of the system of the slopes on landslides is mostly dependent on the varying slope internal conditions. Such properties as the angle of slope, the thickness of colluvium, the presence of older landslide activity, and also dislocations mostly determine the probability of landslides.

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DOI resolver: doi.org/10.5593/sgem2017/12/s02.120

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