Study on Pressure Relief Technology of High-Pressure Water Jet of Residual Coal Pillar in Overlying Goaf in Close Seam Mining

Figure 17

Distribution of the plastic zone around the slot with different spacings in Section 1. (a) 3.0 m. (b) 4.0 m. (c) 5.0 m.

(a)

(b)

(c)