Study on Stability Control of Retained Gob-Side Entry by Blasting Fracturing Roof Technology in Thick Immediate Roof

Table 3

Simulation schemes parameters.

Simulation schemes	Case 1	Case 2	Case 3	Case 4	Case 5	Case 6	Case 7 (nonfracturing)
Angle of fracture line (deg.)	60	75	90	60	75	90	45° (caved angle)
Height of fracturing H (m)	13	13	13	8	8	8	13 (caved height)