Transmission And Substation Foundations - Technical Design Manual (TD06088E)

For this example the loading is as follows: Loads • Compression: 5,000 lbs • Tension: 2,000 lbs

• Shear Long Direction: 1,200 lbs • Shear Trans Direction: 1, 200 lbs • Moment About Long Axis: 10,000 ft-lbs • Moment About Trans Axis: 0 ft-lbs

DESIGN EXAMPLES

Figure 7-27

Soil Profile:

Soil Description

Depth ft.

SPT -N Blows/ft

Silty Sand Loose γ =90lb/ft3 ɸ =27°

0

4

Sand γ =120lb/ft3 Φ =30°

5

10

Note: Water Table = 0 FT

Figure 7-28

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