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

Table 10

Influence of elastic modulus and Poisson’s ratio of the sliding bed on safety factors and error range.

Modes	Schemes	Elastic modulus (GPa)	Poisson’s ratio	LE method	FE method	Error range (%)
Stable slope	1	15.0e6	0.01	1.44	1.35	−7
	2	15.0e2	0.1	1.44	1.35	−7
	3	15.0	0.2	1.44	1.00	−44
	4	0.15	0.3	1.44	0.91	−58
	5	0.015	0.4	1.44	1.01	−43
Local failure slope	6	15.0e6	0.01	1.15	1.04	−11
	7	15.0e2	0.1	1.15	1.04	−11
	8	15.0	0.2	1.15	0.75	−53
	9	0.15	0.3	1.15	0.66	−74
	10	0.015	0.4	1.15	0.69	−66