A Nonexplosive Method for Simulating Stress Waves of Large-Scale Underground Explosions

Table 2

Experimental conditions.

No.	The buffer material	Velocities of the steel projectile (m/s)	The confining stress (MPa)
1	Machine oil	12.09	2
2	Machine oil	13.9	2
3	Machine oil	14.67	2
4	Rubber	12.11	2
5	Rubber	13.77	2
6	Rubber	14.75	2
7	Nylon plate	12.09	2
8	Clay	11.2	3
9	Clay	12.86	5
10	Clay	13.21	5
11	Clay	14.68	5
12	Dough	13.62	5
13	Dough	17.3	5