Environmental Engineering Reference
In-Depth Information
Mean side capacity (kN)
0
5000
10,000
15,000
20,000
25,000
30,000
35,000
45
55
Alluvial
65
Marine
Marine/Alluvial
75
85
95
Side capacity coefficient of variation (d)
0.00
0.05
0.10
0.15
0.20
0.25
45
55
65
75
85
Marine
Alluvial
Marine/Alluvial
95
Horizontal correlation distance for side capacity (m)
0
500
1000
1500
2000
2500
45
55
65
Marine/
Alluvial
Marine
Alluvial
75
85
95
Figure 13.34
Models for mean, coefficient of variation, and horizontal correlation distance for spatial vari-
ability in axial pile capacities due to side shear in different offshore fields.
here corresponds to a normally consolidated marine clay that is relatively homogeneous, an
alluvial deposit with layers of clay and sand that is relatively heterogeneous, and an alluvial
deposit that is incised with channels filled with marine clay. The marine clay has the smallest
spatial variability and the largest horizontal correlation distance,
*
while the mixed setting
*
Correlation distance is defined here for an exponential correlation model as the distance between locations
where the correlation coefficient in capacity is e
−1
.
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