Improved Nonlinear Nishihara Shear Creep Model with Variable Parameters for Rock-Like Materials

Table 2

Test grading loading method.

Specimen number	Normal stress (MPa)	Shear strength (MPa)	Shear stress (MPa)
			1	2	3	4	5
1	0.78	4.1	1.23	1.64	2.05	2.46	2.87
2	1.56	5.6	1.68	2.24	2.8	3.36	Broken
3	2.34	6.45	1.935	2.58	3.87	4.515	5.16
4	3.12	7.33	2.199	3.665	4.398	5.131	5.864