Transmission And Substation Foundations - Technical Design Manual (TD06088E)

CHANCE® Helical Pile Selection RS6625.280 with a single 16” diameter helix

Lateral Capacity Analysis using L-Pile Moment load about the longitudinal axis is assumed to be transferred to the piles in tension and compression. The piles will require passive resistance of the resultant shear load of (1,200 2 + 1,200 2 ) 1/2 = 1,698 lbs with a maximum deflection under this load of 1/2” that is typical for substation structures. L-Pile yields the following output for this shaft that is within the design parameters and requires a minimum embedment of 14 feet.

DESIGN EXAMPLES

Figure 7-28

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