Helical pipe piles are round piles with a helical "screw" on the leading end. They are installed similar to a screw in wood. They are often also referred to as Screw Piles.
The size of the helix is dependent on the soil characteristics and the required load capacity. The pipes may also be post grouted if required for additional load carrying ability.
Helical Piles require less soil displacement than caissons and thus excess soil is not removed and then require removal from the site.
Bermingham's dedicated excavator-mounted helical pile rigs make short work of even a large number of piles.