Mechanical Behaviors and Damage Evolution Characteristics of Predamaged Rock under Triaxial Compression Experiment

Table 1

Predamaged degree of a rock sample.

Sample	Number of cycles	Accumulated AE ring counts	Predamaged degree/D0
S-0	0.0	0.0	0.0
S-1	7.0	14.0	0.1
S-2	10.0	19.8	0.2
S-3	13.0	32.2	0.4
S-4	16.0	61.1	0.7
S-5	19.0	82.6	1.0