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The paper summarizes the results of assessme nt of geo mechanical characteristics of rock samples collected from the Sibiu C ounty: Valea StrГўmbului-Rasinari and Valea Marajdia. The rock characteristics are infl uenced by climate factors, in particular temperature and humidity. When the phenomenon of frost occurs, rock stretches and some strains are acting that lead to a deterioration of the structure and internal stability, thereby reducing the characteristics of resistance and strength. Within this scope, sever...