Loading-Rate Dependence of Rocks in Postfailure Region under Triaxial Compression

Table 4

Calculated results of n.

Rock	σ3 (MPa)	Peak strength (MPa)		n
		Air-dried	Wet	Air-dried	Wet
Tage tuff	0	22.26	10.81	42	30
	3	30.52	19.17	48	34
	6	35.42	20.25	48	36
	9	40.39	20.67	50	40
Ogino tuff	0	27.35	15.52	36	24
	3	41.66	22.28	40	25
	6	46.69	23.69	43	29
	9	49.59	24.67	44	31
Emochi andesite	0	77.5	68.59	47	38
	3	96.72	79.85	50	42
	6	115.20	91.83	53	44
	9	129.39	115.05	60	54
Jingkou sandstone	0	67.49	52.6	39	38
	3	82.80	73.50	38	41
	6	96.35	79.86	41	43
	9	110.68	92.34	48	48