Numerical Analysis of Bearing Behavior of the Prebored Precast Pile with an Enlarged Base
Table 1
Summary of soil properties.
Soil layer
Depth (m)
(%)
γ (kN/m3)
c′ (kPa)
φ′ (°)
su(kPa)
Es (MPa)
qs (kPa)
① Fill
0.0–3.0
25.0
17.0
—
25.0
20
—
—
② Silty clay with silt
3.0–7.0
31.0
18.5
5
32.0
52
10.0
40
③ Soft organic clay
7.0–19.5
50.4
16.7
4
26.7
31
3.3
28
④ Silty clay
19.5–39.5
32.9
18.2
3
30.7
68
5.0
56
⑤ Silty clay with silt
39.5–46.5
23.1
19.7
10
29.6
120
10.5
99
⑥ Silty clay
46.5–51.0
31.0
18.4
7
28.0
113
5.5
89
⑦ Silt mixed silty clay
51.0–59.5
28.2
18.7
2
32.5
178
9.0
89
⑧ Silty sand
59.5–70.0
25.9
19.0
—
35.0
—
12.8
—
: water content; γ: unit weight; c′: effective cohesion; φ′: effective friction angle; su: undrained shear strength; Es: compression modulus; qs: ultimate shaft resistance obtained from the field test.
