Materiały konferencyjne SEP 1992

1 - situation before bending 2 - situation with bending. MA* 1 MM 2 MB* 3 BOM 4 F i g . 2 I zz 1 5 bereholes, 2 - explosives, 3 - roadways, 4 - seam, coal face, 6 - sandstone, 7 - face direction. F i g . 3 H«w schAm* of blastiog.