Geoscience Reference
In-Depth Information
(a)SR1 Dr~50% (47-56%)
0.5
Fc=0%
5%
10%
20%
30%
0.4
0.3
Fc=0%
5%
10%
0.2
20%
30%
0.1
0
0.1
1
10
100
1000
Number of Cycles Nc
(b)SR3 Dr~50% (45-56%)
0.5
Fc=0%
2.5%
5%
10%
20%
30%
Fc=0%
0.4
2.5%
0.3
5%
20%
10%
0.2
30%
0.1
0
0.1
1
10
100
1000
Number of Cycles Nc
Fig. 8.19. Liquefaction strength(stressratio) versus number of cycles forRS1 (a)
and RS3 (b) withdifferent fines content
Fc
It is noted in Figure 8.20 that the decrease occurs in smaller
Fc
range for RS3
(
Fc
<
10%
and the strength tends to recover slightly for larger
Fc
for RS3. In order to explain the difference between RS1 and RS3, let us look into the
relationships between dry soil density and fines content shown in Figure 8.14, in which
)
than for RS1
(
Fc
<
30%
)
