Nonproportional Correlative Reduction Finite Element Method for Slope Strength Parameters

Table 2

Computational results for different reduction modes with different methods.

Methods		Reduction modes	Double safety factors	Weight
Finite element method	Traditional strength reduction FEM	and with the same reduction factor (scheme 1)	1.336	0.560
			1.336	0.440
	Double reduction factors FEM	with reduction but without reduction (scheme 2)	1.717	0.463
			1.000	0.537
		Nonproportional correlative reduction between and (scheme 3)	1.570	0.497
			1.099	0.503
Limit equilibrium method	Bishop’s slice method	and with the same safety factor (scheme 4)	1.320	0.580
			1.320	0.420
	Double safety factors of Bishop's slice method	with the independent safety factor and safety factor of is 1 (scheme 5)	1.712	0.465
			1.000	0.535
		Nonproportional double safety factors between and (scheme 6)	1.529	0.505
			1.094	0.495