Stress state determination and prediction in rock mass with rockburst risk in Ostrava-Karvina coal basin

The contribution informs about practical application of a system of detecting and predicting of unfavourable stress conditions in rock massif with rockburst risk in Ostrava-Karvina coalfield. The geological and mining characteristics of the south part of carboniferous hard coal deposit, straddling on the border between Czech Republic and Poland are briefly described. Further the problems of stress measures and practical use of stress determination and rockbursts prediction in conditions of sedimentary coal deposit is discussed. In the end the results and successfulness of the rockbursts prediction in Ostrava-Karvina coalfield are presented.