dissertation stems from the article [1], [2], [3] published in Acta Montanistica Slovaca (1999) and of the works [4], [5]. The accelerative harmonic force in the oscillation system was analysed. The following formula has been found to be valid for a possible origin of the shock of massif building units: ‡”‡”Ý+=nnHOttstt11)()()(ƒÕƒÕƒÕƒÐMoreover, implications for the practice have been defined: an output of the oscillation system of the building units as an seam shock prevention in the OKR (Ostrava-Karvina district) model.