Transmission And Substation Foundations - Technical Design Manual (TD06088E)

DESIGN EXAMPLES

Figure 7-23: Guy Piles Helicap® Report

With these results, it is possible to calculate the required installation torques for the piles. For an 8” diameter pipe, the Kt is 4:1 and for SS150, Kt is 10:1. To calculate required torque, equation:

Equation 7-6

Installation Torque (ft-lbs)=required Capacity(kip)*1000/Kt

The required installation torque for the RS8625 piles is 25,000 ft-lbs and for the guy anchors is 6,000 ft-lbs.

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