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

Table 5

Comparison of two methods for determining long-term shear strength.

Specimen number	Normal stress (MPa)	Long-term shear stress (MPa)
		Isochronous curve method	Modulus inflection point method
1	0.78	2.04	2.04
2	1.56	2.8	2.8
3	2.34	4.515	4.515
4	3.12	5.131	5.131