Geoscience Reference
In-Depth Information
294
Multiscale Geomechanics
The material is composed of particles with a diameter that varies from 0.8 mm to
10 mm with
e
max
and
e
min
equal to
0.545
and
0.209
, respectively. The density of
the particles is
2.67
. We obtain
d
10
= 200 µm; d
30
= 600 µm
and
d
60
=4,000 µm
from the grain size distribution curve. A series of drained and undrained triaxial tests
under different confining pressures (from 50 kPa to 200 kPa) has been performed at
LMSS-Mat [FLE 02] on samples with relative densities, varying from 48 to 81%. The
cylindrical samples have a height of 20 cm and a diameter of 10 cm. The experimental
results are assembled in Figure 9.18.
(a)
(b)
Figure 9.18.
Drained and undrained triaxial test results on coarse gravel [FLE 02]
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