Research on Upper Bound Limit Stability Analysis of Multi-Step High Steep Slope

Table 1

Mechanical parameters of slope soil.

Soil layer	Height (m)	Density (kN·m^−3)	Cohesion (kPa)	Internal friction angle (°)
Abandoned material	48	21	35	16
Quaternary	20	20.5	10	24
Tertiary	12	18.5	50	19
Mud stone	40	22.2	65	20.5