Displacement Monitoring at Verrand High Reinforced Soil Structure - Reinforced Soil Engineering: Advances in Research and Practice - page 122

4 CONSTRUCTION
Construction started in summer 1994 and was completed to the top of the
reinforced portion early in September 1996. Conventional fill was then added to
the final grade, in the following 2 months. Construction proceeded continuously,
except for a stoppage of 1 year, during the summer and winter of 1995. In 1997
the height of the fill was raised 5 more meters, to the present elevation, 5 m higher
than the design top elevation. An aerial view of the Verrand Embankment after
completion is given in Fig. 2.
In summer 1996, a 600-m 3 /s flood (corresponding to an estimated return
period of 100 yr) occurred in the Dora River. Although the water level rose to the
top of the toe wall, no damages were observed on the reinforced embankment.
Reinforced soil as well as compacted fill were built with a heavy vibrating
roller, of class DYNAPAC CA35 (7 static tons on drum). This equipment was
Figure 2 Aerial view of the Verrand high reinforced soil structure after completion.