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Figure 7
Required strength and length for vertical wall: (a) geosynthetic strength; (b)
tieback length; (c) direct sliding length.
attainable. Consequently, a performance-based design should be employed to
avoid excessive length of the geosynthetic layer needed to resist direct sliding.
Figures 8a-c
show the effects of vertical acceleration for a vertical wall
with f equal to 30
8
. The ratio of vertical acceleration has been considered for
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