Mechanism and Application of Static Fracturing Technology on Deep Working Face

Table 7

Orthogonal test data.

Indicators	Schemes
	1	2	3	4	5	6
Peak stress ΔU (MPa)	15.45	13.05	10.17	7.14	28.01	26.78
Width of plastic zone ΔL (m)	1.09	0.42	0.5	0.54	2	0.62
Volume of plastic zone ΔV (m^3)	1.49	0.53	0.81	1.26	12.49	1.38
	7	8	9	10	11	12
Peak stress ΔU (MPa)	14.00	18.54	47.60	42.97	33.36	26.46
Width of plastic zone ΔL (m)	0.61	0.62	2	0.91	0.88	0.84
Volume of plastic zone ΔV (m^3)	1.94	0.41	25.33	3.48	0.72	1.21