Damage Statistical Empirical Model for Fractured Rock under Freezing-Thawing Cycle and Loading

Table 2

The characteristic stresses of intact rock and different fractured rocks under different confining stresses and freezing and thawing cycle.

/MPa	W				/MPa	A4
	2	9.26	27.52	50.91		61.16	2	4.12	17.84	25.12	39.64
4	11.73	34.20	56.59	75.99	4	17.71	24.21	32.3	53.8
6	19.89	35.35	66.81	78.55	6	9.51	21.40	35.99	47.56
/MPa	A5				/MPa	A6
	2	10.51	15.91	31.01		35.36	2	9.45	21.14	39.67	46.97
4	10.94	16.30	30.14	36.23	4	4.54	23.34	45.33	51.86
6	13.78	18.47	34.75	41.05	6	15.87	25.71	55.37	57.13
/MPa	W				/MPa	A4
	2	5.65	26.75	45.21		59.45	2	3.05	14.83	17.6	32.96
4	9.18	27.32	47.32	60.71	4	9.10	16.45	27.4	36.56
6	17.61	29.99	49.37	66.65	6	10.22	17.43	26.31	38.74
/MPa	A5				/MPa	A6
	2	4.30	11.02	14.62		24.49	2	11.43	19.85	36.58	44.12
4	4.38	14.94	21.90	33.21	4	6.22	22.10	43.32	49.11
6	8.89	18.94	34.21	42.08	6	21.91	25.51	46.31	56.68
/MPa	W				/MPa	A4
	2	7.25	24.36	28.76		54.13	2	2.59	10.65	16.84	23.67
4	15.45	25.67	41.23	57.05	4	9.10	18.83	24.31	41.84
6	15.98	28.46	46.93	63.25	6	8.70	17.27	25.16	38.38
/MPa	A5				/MPa	A6
	2	4.70	10.23	18.04		22.73	2	8.62	18.43	30.84	40.95
4	11.56	12.67	19.32	28.15	4	8.84	21.42	39.10	47.60
6	7.98	17.92	27.44	39.82	6	17.88	23.24	45.29	51.64
/MPa	W				/MPa	A4
	2	9.27	19.31	35.87		42.92	2	5.21	10.97	9.75	24.37
4	13.17	25.39	43.31	56.43	4	6.99	14.04	17.82	31.21
6	13.04	25.59	45.65	56.86	6	10.03	16.32	24.28	36.27
/MPa	A5				/MPa	A6
	2	3.91	7.87	12.50		17.49	2	8.27	18.40	27.21	40.89
4	3.59	10.57	17.47	23.49	4	6.88	15.49	28.46	34.42
6	7.25	12.28	23.92	27.29	6	9.55	24.65	32.51	54.77