ETL 1110-1-189
14 Feb 03
D ual Wheel Lo ad
On e L a y e r S y st e m
3a
T i r e P r e ssu r e = 8 0 p si
a = R a di us of C ont a c t A r e a
70
70
65
65
60
60
55
55
50
50
45
45
D u a l Wh e e l L o a d
40
40
2 0 , 0 0 0 l bs
35
35
1 6 , 0 0 0 l bs
1 2 , 0 0 0 l bs
30
30
9 , 0 0 0 l bs
25
25
4 , 0 0 0 l bs
20
20
15
15
10
10
5
5
A da pt e d Fr om St e wa r d e t a l . 1 9 7 7
0
0
1
10
100
S u b g r a d e B e a r i n g C a p a c i t y , C N c , p si
Figure 6. Aggregate-surfaced pavement design curves for dual-wheel loads.
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