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Home > United Facilities Criteria CD 1 > > Table 4-9. Stress Distribution Beneath the Uniformly Loaded Area
Figure 4-68. Conditions for bearing capacity analysis of square raft (by CRREL)
Figure 4-69. Frozen soil column - diagrams of temperature and stress distribution

Foundations For Structures: Artic and Subartic Construction - index
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TM 5-852-4/AFM 88-19, Chap. 4
Table 4-9. Stress Distribution Beneath the Uniformly Loaded Area.
Loaded Area.
a. Under center, b=15 ft.
z
2
Depth below
b
f(m,n)
Stress, T/ft
2
footing, ft
z
from chart
az = 4xf(m,n) x 2T/ft
60
0.25
0.027
0.22
50
0.30
0.038
0.30
42.8
0.35
0.048
0.38
37.5
o.40
0.06
0.48
33.3
0.45
0.072
0.58
30.0
0.5
0.084
0.67
20.0
0.75
0.136
1.09
15.0
1.0
0.175
1.40
10.0
1.5
0.216
1.73
7.5
2.0
0.232
1.86
6.0
2.5
0.24
1.92
4.28
3.5
0.245
1.96
3.75
4.0
0. 247
2.00
b. Under corner, b=30 ft.
z
2
Depth below
b
f(m,n)
Stress, T/ft
2
footing, ft
z
from chart
az = 4xf(m,n) x 2T/ft
60
0.5
0.085
0.17
50
o.6
0.107
0.21
42.8
0.7
0.128
0.25
37.5
0.8
0.146
0.29
33.3
0.9
0.162
0.32
30.0
1.0
0.175
0.35
20.0
1.5
0.216
0.43
15.0
2.0
0.232
0.46
10.0
3.0
0.244
0.49
7.5
4.0
0.247
o.49
6.0
5.0
0.248
0.50
4.28
7.0
0.250
0.50
3.75
8.0
0.250
0.50
U. S. Army Corps of Engineers
4-108






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