A Modified Newmark Methodology for Permanent Deformation Analysis of Rock-Fill Dams

Table 6

Horizontal critical acceleration, sliding displacement, and factor of safety.

Items	Traditional method^1	Contrast analysis^2	Modified method^3
(g)	0.152	0.134	0.045^#
s (cm)	24.2	42.1	68.4
Factor of safety	1.285	1.214	1.214

¹The traditional method is the approach in which the static shear strength is used. ²The contrast analysis is the approach in which only the cyclic shear strength is considered in the modified method. ³The modified method is the approach in which the cyclic shear strength and time history vertical acceleration are considered simultaneously. ^#The minimum critical acceleration during the earthquake shaking.