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Figure 21 Calculated deformation mode after loading.
3 REINFORCEMENT WITH GEOGRIDS
The effectiveness of geotextiles (geogrid, sheet) was investigated with the
shaking table tests using the large- and small-scale models assuming a
reclamation dike with a reservoir.
3.1 Reclamation Dike Model
3.1.1 Small-Scale Model
In the small-scale shaking table test, the embankment was constructed with rock
on the upper stream side and loose sand on down stream. Sand C (Fig. 22) was
used in the test. Figure 23 shows an outline of the small-scale model and the
arrangement of instruments. The model was 2 m long, 43.3 cm high, and 40 cm
wide. Table 4 shows the properties of the geogrids, which were placed
Figure 22 Grain size distribution curve (sand C).
 
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