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Figure 2 Triaxial test results.
The strength parameter of the unreinforced sand was c
¼
3.0 kPa and
f 0 ¼
, white that of the reinforced sand was c 0 ¼
107 kPa and f 0 ¼
. The
effect of the reinforcement mainly showed in c 0 , and the difference, Dc 0 , was
104 kPa. Test results are shown in Fig. 3. There are only small differences in the
number of cycles, but the stress ratio of the reinforced sand is 35% greater than
that of the unreinforced sand with 20 cycles, the number generally used to
determine liquefaction strength. The results of the mechanical tests clearly show
that reinforcement with continuous fibers is effective.
38
8
42
8
Figure 3 Undrained cyclic strength of unreinforced and reinforced specimens.
 
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