Study on Mechanical Response and Stability Algorithm of Soft and Hard Rock Interbedded Slope Excavation

Table 3

Comparison of slope stability results of different methods.

Excavation series	Numerical simulation	Arc-shaped sliding surface algorithm	Composite sliding surface algorithm
Fourth	1.18 stable	1.25 stable	1.14 basically stable
Third	1.06 basically stable	1.14 basically stable	1.05 basically stable
Second	1.07 basically stable	1.13 basically stable	1.04 unstable
First	0.89 unstable	1.04 unstable	0.85 unstable