The Effect of a Tectonic Stress Field on Coal and Gas Outbursts

Table 3

The plastic zone of the coal mass in front of the roadway (m³).

	Case 1	Case 2	Case 3	Case 4	Case 5
Coal seam without gas	3.40	4.44	3.70	3.41	4.57
Coal seam with initial gas pressure 0.8 MPa	5.44	5.55	5.13	4.93	5.67
Coal seam with initial gas pressure 1.5 MPa	6.32	6.85	6.39	5.86	6.62