ABSTRACT
Stage II The experience gathered during the experiment conducted in Stage I will allow making a decision on its continuation to stage II, according to one of the following variants:
– Stage II-Variant I-on the floor of the A-1/6 incline (figure #8). – Stage II-Variant II-with short-wall location behind the safety pillar on the A-1/6
incline floor level (figure #9). – Stage II-Variant III-under the roof of an earlier excavated haulage road, with leaving
a safety pillar (figure #10).
