Experimental Study on Triaxial Unloading Failure of Deep Composite Coal-Rock

Table 5

Verification of experimental results.

No.	Initial confining pressure (MPa)	Triaxial compressive strength (MPa)	Deviation rate (%)
T7	12	52.493	0.451
T8	12	53.302	1.083
T9	12	52.845	0.216
T10	17	70.251	1.153
T11	17	68.987	0.667
T12	17	69.521	0.102