Error Source Analysis and Precision Assessment of Limit Equilibrium Methods for Rock Slopes

Table 12

Influence of in situ stress release on safety factors and error range.

Schemes	LE method	FE method		Error 1 (%)	Error 2 (%)
		Without considering stress release	Considering stress release
1	1.30	1.15	0.84	−13	−54
2	1.44	1.38	1.01	−4	−42
3	1.63	1.57	1.25	−4	−30

Note: Error 1 is the error that does not consider stress release, while Error 2 considers stress release.