Geoscience Reference
In-Depth Information
600
Vs
0min
(HC)
Vo
max
(HC)
Vo
min
(LC)
Vo
max
(LC)
500
400
300
Vs
0max
= 440Cu/(Cu+1.4)
Vs
0min
=136
200
100
0
1
10
100
Uniformity coefficient: Uc
Fig. 8.8. Normalized max. and min. S-wave velocities versus uniformitycoefficient
for testedsoils(modified fromKokusho and Yoshida, 1997)
1000
TS(HC)
G25(HC)
G50(HC)
G75(HC)
Vs
Eq.
= 1.2 Vs
Exp
.
Vs
Eq.
= Vs
Exp.
/1.2
Vs
Eq.
= Vs
Exp.
100
100
1000
Vs (m/s) by Experiment
Fig. 8.9. Experimental S-wave velocities versus proposed equation for four soils
(modified fromKokusho and Yoshida, 1997)
In Figure 8.9, the estimated
Vs
from Eq. (8.2) are compared with the values measured in
the tests, indicating that the empirical equation evaluates most of the test results with a
factor of 1.2 to 1/1.2.
