Model Test Study on Cylindrical Blasting Stress Wave Propagation across Jointed Rock Mass with Different Initial Stresses

Table 3

Boundary static loads of test samples.

Number	Experiment load (MPa)		Initial in situ stress (MPa)
	Vertical	Horizontal	Vertical	Horizontal
1	0	0	0	0
2	0.75	0.75	15	15
3	1.5	1.5	30	30
4	3	3	60	60