0
2000
4000
6000
8000
10000
300 kPa 900 kPa
1500 kPa^2500 kPa
Modied PZ
0 5 10 15
− 1
( 3
kPa)
1 (%)
(a)
− 4
− 3
− 2
− 1
0
1
2
3
4
1 (%)
0 5 10 15
(%)
300 kPa 900 kPa
1500 kPa 2500 kPa
Modified PZ
(b)
Figure 5: Comparison between fittings of the modified PZ-III model and experimental triaxial tests results for rockfill material I.
Duncan-Chang EB
0 5 10 15
1 (%)
3 =300kPa 3 =900kPa
3 = 1500kPa 3 = 2500kPa
0
2000
4000
6000
8000
10000
− 1
3
(kPa)
(a)
0 5 10 15
1 (%)
− 3
− 2
− 1
0
1
2
3
(%)
Duncan-Chang EB
3 =300kPa 3 =900kPa
3 = 1500kPa 3 = 2500kPa
(b)
Figure 6: Comparison between fittings of Duncan and Chang’s EB model and experimental triaxial tests results for rockfill material II.
Modified PZ
0 5 10 15
1 (%)
3 =300kPa 3 =900kPa
3 = 1500kPa 3 = 2500kPa
0
2000
4000
6000
8000
10000
− 1
3
(kPa)
(a)
0 5 10 15
1 (%)
− 3
− 2
− 1
0
1
2
3
(%)
Modified PZ
3 =300kPa^3 =900kPa
3 = 1500kPa 3 = 2500kPa
(b)
Figure 7: Comparison between fittings of the modified PZ-III model and experimental triaxial tests results for rockfill material II.