Nr 2/2022 (550)
MAREK WOJTAS, DAMIAN KAZUBIŃSKI, KLAUDIUSZ PILARZ AN INNOVATIVE CROSSING POWERED SUPPORT OF THE HENNLICH-20/43-CH TYPE The underground mining of minerals with a longwall system requires the construction of two parallel galleries (bottom road, top road). As the longwall progresses, they are eliminated (mining from the boundaries). Reconstruction of this area, i.e., the wallroad crossing, is […]
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