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

Table 8

Influence of sliding body Poisson’s ratio on safety factors and error range.

Slope states	Schemes	Elastic modulus (GPa)	Poisson’s ratio	LE method	FE method	Error (%)
Stable slope	1	15.0	0.01	1.44	1.31	−10
	2	15.0	0.05	1.44	1.33	−8
	3	15.0	0.1	1.44	1.34	−7
	4	15.0	0.2	1.44	1.34	−7
	5	15.0	0.3	1.44	1.35	−7
	6	15.0	0.4	1.44	1.36	−6
Local failure slope	7	15.0	0.01	1.15	0.96	−20
	8	15.0	0.05	1.15	0.98	−17
	9	15.0	0.1	1.15	1.01	−14
	10	15.0	0.2	1.15	1.04	−11
	11	15.0	0.3	1.15	1.02	−13
	12	15.0	0.4	1.15	0.86	−34