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The involved geological structure of the Bilina Mine complicates mining of overburden materials and it is necessary to make movement of the large mining machines in the risk zones safe, so that they are not endangered. A lot of risks is connected with mining and some of them can be categorized as so-called uninfluenced risks. Areas broken by tectonic processes or strongly inclined layers on overburden cuts are such hazards. Those in quarrying negatively affect mining in many aspects. Due to a landslide there is a ...