Roof Failure Mechanism and Control Technology of Large Section Open-Off Cut in Soft Rock Strata with Thin Thickness

Figure 12

Influence of different interlayer states on the plastic zone. (a) No interlayers, (b) 0 m from the roof, (c) 0.8 m from the roof, (d) 2.0 m from the roof, (e) 2.4 m from the roof, (f) 2.8 m from the roof, (g) 5.6 m from the roof, (h) 2.8 m from the roof, (i) 3.2 m from the roof, and (j) 3.2 m from the roof.

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