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

Table 7

Influence of sliding body elastic modulus on safety factors and error range.

Slope states	Schemes	Elastic modulus (GPa)	Poisson’s ratio	LE method	FE method	Error (%)
Stable slope	1	15.0e6	0.25	1.44	1.25	−15
	2	15.0e4	0.25	1.44	1.45	1
	3	15.0e2	0.25	1.44	1.41	−2
	4	15.0	0.25	1.44	1.34	−7
	5	1.5	0.25	1.44	1.34	−7
	6	0.15	0.25	1.44	1.35	−7
Local failure slope	7	15.0e6	0.25	1.15	0.77	−49
	8	15.0e4	0.25	1.15	1.17	2
	9	15.0e2	0.25	1.15	0.98	−17
	10	15.0	0.25	1.15	1.04	−11
	11	1.5	0.25	1.15	1.06	−8
	12	0.15	0.25	1.15	1.11	−4