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1
RS1 (Cu=1.44) N L =20
RS1 (Cu=1.44) N L =10
RS2 (Cu=3.79) N L =20
RS2 (Cu=3.79) N L =10
RS2 (Cu=13.1) N L =20
RS2 (Cu=13.1) N L =10
0.8
0.6
0.4
0.2
0
0
20
40
60
80
100
Relative density Dr (%)
Fig. 8.17. Liquefaction strength(stressratio) versus relative density plots compared
among three soils of different particle gradation (Hara and Kokusho, 2000)
0.8
Dr20%, DA=5%
Dr35%
Dr50%
Dr60%
Dr70%
Dr90%
Tanaka et al.
(1987) DA=5%
DA=2%
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
1
10
100
Uniformity coefficient Cu
Fig. 8.18. Relationship between stressratio RL20 and uniformity coefficient U c for
different relative density (Kokusho et al., 2004)
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