Research Article

Exploration and Practice of Pressure Relief by Slotting Coal Seams with a Diamond Wire Saw

Figure 3

Vertical stress distribution of different slot depths. (a) L = 0.8 m, (b) L = 11.2 m, (c) L = 22.4 m, and (d) L = 33.6 m.
(a)
(b)
(c)
(d)