Issue 59
S. Anouar et alii, Frattura ed Integrità Strutturale, 59 (2022) 374-395; DOI: 10.3221/IGF-ESIS.59.25
Results and discussed of triaxial compression tests The variation of deviator stress with shear strain for soft soil of Mila is illustrated in Fig. 5. The following Figs. 7-10 show the variation of deviator stress with shear strain for the materials of CSV. For the upper side of the last-mentioned figures, a CP of 100 kPa is revealed, the center side and the lower side illustrate a specimen that undergoes a CP of 200 kPa, 300 kPa, respectively. In Fig. 6 (a) and (b), it is depicted that the variation of the effective friction angle and the effective cohesion in function of PP fiber content. The results tests are summarised in Tab. 2.
Figure 5: Stress-strain behaviour of soft soil with CP= 100, 200 and 300 kPa.
SSC (%)
SC (%)
CC (%)
FC (%)
E (kPa)
Deviatoric stress (kPa)
Axial strain (%)
C' (kPa)
φ '
CP = 100 kPa
CP = 200 kPa
CP = 300 kPa
CP = 100 kPa
CP = 200 kPa
CP = 300 kPa
100
0
0
0
20.17
13.29
52.42
109.64
177.69
229.30
19.74
17.59
16.62
3.26
3.92
4.76
75
20
5
0
72.52
33.63
579.87
555.35
869.33
1046.42
3.46
4.56
5.14
75
20
5
0.5
128.49 38.78
761.78
1011.69
1383.44
1680.65
75
20
5
1
154.35 37.49
828.69
1108.21
1359.02
1729.61
6.13
7.37
7.93
75
17.5
7.5
0
89.109 40.36 1497.34 857.76
1276.33
1589.98
3.07
3.26
3.89
75
17.5
7.5
0.5
142.24 42.78 1154.22 1436.14
1590.07
1600.95
3.21
3.91
4.05
1534.27 1884.65
7.07
7.35
75
17.5
7.5
1
164.06 43.56
965.83
2413.78
6.05
1.81
2.44
3.06
50
40
10
0 103.32 49.09 3174.47 1653.96 1864.54 2793.28
2.67
2.94
3.64
50
40
10
0.5
166.09 47.47 1914.38 1753.96 1902.92 2939.28
50
40
10
1
179.22 49.22 1727.24 2069.01
2802.63
3307.24
3.08
3.55
4.062
50
35
15
0
164.43 49.11 3903.77 2013.53
2508.34
3241.64
1.23
1.91
2.99
50
35
15
0.5
174
52.04 2399.53 2409.02
3101.05
3898.01
2.43
3.24
3.51
3.19
3.48
3.63
50
35
15
1
182.61
52.6
1873.45 2630.34 3200.44 4153.68
Table 2: Summary of triaxial tests results.
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