Pile caps - Helical Piles
Pile caps - Helical Piles
(OP)
Can anyone provide some guidance regarding pile caps for helical piles. It will be a single helical pile for a T-pole pipe support. The moment is relatively small. The cap and pile will see tension and compression. I beleive I need to consider the same failure modes as that for an anchor bolt. Is there concern for bending in the pile?






RE: Pile caps - Helical Piles
BA
RE: Pile caps - Helical Piles
RE: Pile caps - Helical Piles
You can use a concrete pile cap if you prefer. That allows grouting of the T-pole baseplate and does not require so much accuracy in the placement of the pile and leveling the cap plate.
BA
RE: Pile caps - Helical Piles
The typical top detail for the piles is a square top plate with a tube that is bolted over the top of the helical pile tube. This provides the embedment for tension.
Provide square shear links in both directions around this cap plate and then provide chemical anchors to the top. This gives tolerance for both top of pile and pile location which is very critical for any interaction between structure and foundation.