2495
Technical Committee 211 /
Comité technique 211
3-c coarse aggregate material
figure 3. test results for stone columns embedded in cohesive soil.
4-a fine aggregate material
4-b medium aggregate material
3-c coarse aggregate material
figure 4.test results for stone columns embedded in granular soil.
as it was mentioned earlier one of the variables in this study
was the size of the column aggregate materials. the results of
tests on the same stone column conditions but with different
size of stone column materials are illustrated in figure 5 and 6
for cohesive and granular surrounding soils, respectively.it can
be seen that keeping all conditions constant, there was an
increase in bearing resistance of the column with increasing
grain size dimension of column material. however the
improvement due to the use of geosynthetic reinforcement was
the same for all column material sizes.
)
no
max(
F
F
)
max(
no
F
F
F
)
max(
no
F
5-a non-reinforced stone column
)
max(
no
F
F
F
)
max(
no
F
5-b half-length reinforced column
)
max(
no
F
F
)
max(
no
F
F
5-c full-length reinforced column
figure 5. test results for different stone columns materials embedded in
cohesive soil.
