Determination of the Peak and Residual Shear Strengths of the Sandwich Material in Slopes

Table 3

Calibrated values of the main microparameters at different vertical stresses.

Vertical pressure [kPa]	Model size [mm]	[mm]		Coefficient of friction	[Pa]		NS [kPa]	BS [kPa]
= 50	61.8 20	0.3	1.5	0.10	7 10^7	1	1 10^3	0.7 10^2
= 100	61.8 20	0.3	1.5	0.13	7 10^7	1	1 10^3	0.7 10^2
= 150	61.8 20	0.3	1.5	0.24	7 10^7	1	1 10^3	0.7 10^2
= 200	61.8 20	0.3	1.5	0.32	7 10^7	1	1 10^3	0.7 10^2
= 250	61.8 20	0.3	1.5	0.40	7 10^7	1	1 10^3	0.7 10^2
= 300	61.8 20	0.3	1.5	0.50	7 10^7	1	1 10^3	0.7 10^2