Implementation of the Barton–Bandis Nonlinear Strength Criterion into Mohr–Coulomb Sliding Failure Model

Table 3

Structural plane stiffness parameters of numerical test.

Normal stress, (MPa)	Shear stress, (MPa)	Shear stiffness uncorrected, ()	Shear stiffness corrected, ()	Normal stiffness, ()	Joint internal friction angle, (°)	Joint cohesion, C (kPa)	Test results, (mm)	Numerical test uncorrected, (mm)	Numerical test corrected, (mm)
0.05	0.035	0.2678	0.3133	1.1233	36.8	1.27	5.92	5.64	5.95
	0.07	0.0001	0.0428	1.1233			13.83	25.38	13.82
0.10	0.04075	0.4369	0.4297	2.2466	35.5	2.47	5.21	5.18	5.23
	0.0815	0.0297	0.1202	2.2466			12.96	24.33	12.98
0.15	0.055	0.4820	0.4756	3.3699	34.8	3.64	5.47	5.49	5.46
	0.11	0.00274	0.0877	3.3699			13.84	22.96	13.87
0.20	0.0325	0.8310	0.8208	4.4933	34.4	4.82	2.81	2.79	2.80
	0.065	0.5513	0.5372	4.4933			5.25	5.22	5.26
	0.0975	0.1453	0.3012	4.4933			8.32	8.36	8.32
	0.13	0.0048	0.1103	4.4933			13.21	21.87	13.24