Geoscience Reference
In-Depth Information
Figure 4
Small-scale shaking table test model.
2.2 Shaking Table Test
The shaking table tests were performed to determine the effectiveness of
reinforcement in embankment structures. The shaking table tests were of two
types: a small-scale model test of embankments and a large-scale model test of
foundations and embankments.
2.2.1 Small-Scale Shaking Table Model Test
Two types of sand, A and B, were used in the tests as shown in Table 1 . The
model in Fig. 4 was constructed in a small box (68 cm high, 40 cm wide, 230 cm
long). Sand A was used in the (a), (b), and (c) tests in Fig. 5, and sand B in the (a)
and (c) tests. With sand A, reinforcement with dense sand was tested to determine
whether the effect in Case (c) was due to the continuous fibers or the dense sand.
In Case (a), the relative densities of sands A and B, the D-value (r d /r dmax ), were
about 80%. The reinforced portions in (b) and (c) are hatched parts in Fig. 4. In
(b), the sand was well compacted, and in (c), the sand was compacted and
reinforced with continuous fibers, 0.2% of the dry weight of sand. The relative
density of the sand in the reinforced portion, the D-value, was above 85%.
Figure 5 Case of small-scale shaking table test.
Search WWH ::




Custom Search