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Table 2 Support approaches used on site

From: Deformation mechanisms in a coal mine roadway in extremely swelling soft rock

Order Support approaches Yielding support?
1 36 U-shape sheds Yes
2 36 U-shape sheds + anchoring and shotcreting Yes
3 Pair of 16 I-shape sheds + anchoring and shotcreting No
4 Pair of 12 mine-used I-shape sheds + anchoring and shotcreting No