Experimental Study of Influence of Support Failures on Rockbursts under True-Triaxial Condition

Table 1

Testing plan of one-single face true-triaxial unloading test under the true-triaxial condition with different support forces.

Specimen number	σ2 (MPa)	σ3 (support forces) (MPa)	Unloading rate (MPa/s)
GZ-1	30	0.1	0.5
GZ-2	30	1	0.5
GZ-3	30	3	0.5