Research on the Influence of Weak Interlayer in Open-Pit Slope on Stability

Table 5

The relationship between dip angle of weak interlayer and slope stability.

Dip angle (°)	Safety factor	Sliding mode
23	1.069	Sliding along the weak layer
20	1.158	Sliding along the weak layer
17	1.232	Sliding along the weak layer
14	1.307	Sliding along the weak layer
11	1.394	Sliding along the weak layer
8	1.460	Shallow sliding on slope