Research Article
Study on the Application of Gob-Side Entry Retaining via Roof Cutting under the Condition of a Hard Thick Roof
Figure 2
Failure under traditional gob-side entry: (a) failure of filling body, (b) floor heave, (c) solid coal deformation, and (d) deformation curve of the surrounding rock.
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(b) |
(c) |
(d) |