Post-Earthquake Investigation of Several Geosynthetic Reinforced Soil Retaining Walls and Slopes During Ji-Ji Earthquake of Taiwan - Reinforced Soil Engineering: Advances in Research and Practice - page 301

performance between the walls facing east and west could be related to the
acceleration characteristics of the earthquake.
5 REINFORCED SLOPES
5.1 Chi-Nan University, Pu Li
Pu Li was the most severely damaged town by the earthquake. It is located about
25 km from the epicenter. The reinforced slope, 40m tall, was located at the front
gate of National Chi-Nan University, facing east. The geogrids were used as
reinforcement, and the slope was backfilled by on-site soil, which was a silty clay.
The slope had a wraparound facing. The reinforced structure was constructed by
stacking a series of reinforced slopes, with a reinforcement spacing of 1 m. The
reinforced slopes, after failure, is shown in Figs. 11a (side view) and 11c (front
view).
The backfill soils and concrete structures from the slope moved for more
than 10m and buried the road. The security office was damaged (Fig. 11b).
Figure 11 Chi-Nan University geosynthetic reinforced slope: (a) side view of failure;
(b) damaged security office; (c) front view of failure; (d) close view of failure showing the
reinforcement and backfill soil; (e) settlement of concrete pavement along the foot of
slope.