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Zbigniew Szczerbowski

. 4, Meckenheim, Germany 2007, pp. 30-34. Brandt S. (1999). Analiza danych. Metody statystyczne i obliczeniowe . Wydawnictwo Naukowe PWN. Warszawa. Butra J. and Kudełko, J. (2011). Rockburst hazard evaluation and prevention methods in Polish copper mines. Cuprum , 61(4), 2011, pp. 5-20. Cacoń S., Bosy J., Kontny B. (2004). Recent Tectonic Activity in the Eastern Sudetes and on the Fore-Sudetic Block on the basis of 1993-2003 investigations. Reports on Geodety, Vol. 2 No. 69, Warszawa 2004, pp. 197-211. Dyjor S. (1993). Etapy blokowego

Open access

Zbigniew Szczerbowski

1 Introduction Natural state of stress in a rock mass depends on many factors as gravity, tectonics, and so on. But this state disturbed by mining leads to local increases or decreases of stress. Geomechanical condition is fundamental in the process of deformation and changes in stress field. Seismicity induced by mining and earthquakes have the same basic mechanisms but they occur on different scales. The similarity in both is the difficulty in prediction. A large amount of work has been spent on solving the problem of modelling of stress in rock mass as