Analysis of Shear Characteristics of Deep, Anchored Rock Mass under Creep Fatigue Loading

Table 5

Summary of model parameters.

Specimen	Shear stress (MPa)	G0 (GPa)	G1 (GPa)	ɳ1 (GPa·h)	ɳ2 (GPa·h)	λ	G2 (GPa)	n	R^2
Anchored sandstone rock masses	2	1.47	23.41	11.54	0.21	0.74	—	—	0.978
	4	1.22	20.17	10.13	1.42	0.82	—	—	0.976
	6	0.99	18.52	9.77	0.63	0.91	—	—	0.964
	6.5	0.86	15.44	8.12	0.77	0.21	10.04	0.58	0.951
Anchored marble rock masses	2	0.73	14.97	7.46	0.84	0.44	—	—	0.981
	4	2.31	34.22	16.52	1.09	0.56	—	—	0.972
	6	2.14	30.56	12.44	1.54	0.84	—	—	0.966
	6.4	1.98	28.94	10.12	0.13	0.11	15.43	0.66	0.944
Anchored granite rock masses	2	1.87	25.10	9.81	0.15	0.37	—	—	0.974
	4	1.74	24.13	9.54	3.11	0.59	—	—	0.951
	6	0.44	47.18	19.46	2.56	0.87	—	—	0.948
	6.6	1.12	45.69	18.57	1.69	0.14	22.16	0.74	0.936