Materiały konferencyjne SEP 2018

XXVII SCHOOL OF UNDERGROUNDMINING 2018 , Cracow, Poland INTRODUCTION  Anew bolting systems were applied extensively within modernization program “Production Operation Program 2010” (POP 2010). Several longwall panels with rockbolt support system of roadways were mined successfully  The bolting systems combined with steel arch supports have begun to be used at this period. Afterwards, the self-support bolting system has not been applied extensively due to technological problems during drilling procedure from shearer loader  A limitation is also the rule that forbids using of the self-support bolting system in areas with 3rd rockburst risk