Damage Process and Fracture Mechanisms in the Rock Surrounding a Roadway Caused by Blasting-Induced Disturbance under High Stress

Table 1

Test schemes for blasting.

Test plan	Model	P1 (MPa)	P2 (MPa)	Blast no.	Blasting mass (g)	Lateral pressure coefficient (k)
1	M1-1, M1-2, M1-3	16	20	6	1	0.8
2	M2-1, M2-2, M2-3	16	16	6	1	1.0
3	M3-1, M3-2, M3-3	16	13.3	6	1	1.2
4	M4-1, M4-2, M4-3	16	11.4	6	1	1.4