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

Table 4

Numerically predicted shear strength of the mudded weak interlayer and the values obtained by statistics.

PS and RS	Statistical value [6, 16]	The numerically predicted value
The peak internal friction angle [°]	11–21	19.36
The residual internal friction angle [°]	8–15	14.61
[%]	87	75.5
The peak cohesion [kPa]	14–22	22.33
The residual cohesion [kPa]	0	2.73
[%]	0	12.24