Summary:

The article describes the parameters of probability distribution of ground vertical deformations based on data retrieved from surveying networks. The ex-periment was located in the mining areas of Bytom, Bieruń, Piekary Śląskie and Chełm, where geodetic rosettes were stabilized. On the basis of carried out sur-veys a standard deviation and variation was counted and factors influencing the probability distribution of vertical deformations were analyzed. The final results show, that the parameters of probability distribution in this case depend on: the values of vertical deformations measured in particular sessions, the methods of mining and the structure of surveying network. The characteristics of a variation parameter in most of the cases differ a lot from the theoretical values due to over-estimation of assumed vertical dislocations.