Materiały konferencyjne SEP 2018

XXVII SCHOOL OF UNDERGROUNDMINING 2018 , Cracow, Poland ROADWAY SUPPORTING AND RELATION TO THE STRESS STATE CONDITION σ H = 28MPa σ h = 10MPa - increased seismic activity - floor heave - anomalous support of roadway deformations Seam => 39+40 Depth =>1000-1100m Thickness => 10 m Support => combined (steel arch, hydraulic jacks,wooden chocks) Energy of seicmic events: E+01J E+02J E+03J E+04J CSM Mine – cross entries No. 401 363 and 401 365