Application of Sliding Block Concept to Geosynthetic-Constructed Facilities - Reinforced Soil Engineering: Advances in Research and Practice - page 96

Figure 4 Relationships between permanent displacement, yield, and peak
accelerations.

The required strength and lengths of geosynthetic for a design are
conveniently expressed using normalized coefficients:

P t j

t j
gh j D j

K ¼ ð 8 Þ

2 gH 2 <

1

l c
H

L c ¼ ð 9 Þ

l ds
H

L ds ¼ ð 10 Þ

where

gand H are the unit weight of soil and the wall height, respectively.
h j is the depth of the jth geosynthetic layer measured from the wall crest.
t j and D j are the required geosynthetic tieback strength and tributary area of
the jth layer.