Stability Control of a Roadway Surrounding Rock during the Cutting and Pressure Relief of a Coal-Bearing Roof at a Shallow Mining Depth

Figure 9

Data recorded at each monitoring point in the section along the hollow lane: (a) No. 2, (b) No. 7, (c) No. 12, and (d) No. 13.

(a)

(b)

(c)

(d)