Research on Plastic Zone Evolution Law of Surrounding Rock of Gob-Side Entry Retaining under Typical Roof Conditions in Deep Mine

Figure 6

Plastic zone evolution process of deep gob-side entry retaining with compound roof. (a) 2000 steps, (b) 4000 steps, (c) 6000 steps, (d) 8000 steps, (e) 10,000 steps, and (f) 12,000 steps.

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(b)

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