A screw pile (also known as a helical pier, or helical pile) is a long steel tube with large welded-on blades that twists into the ground like a giant screw. By drilling a group of these piles into an area, you can quickly build a solid foundation for constructing a whole range of heavy-duty industrial, residential, and commercial projects.
If we had to describe helical piles with one word, that word would be “versatile!” There are few situations where they do not offer a foundation option that is fast, effective, economical, convenient and strong.
How does it work?
Helical plates are generally welded to a metal shaft which are “screwed” into the ground using hydraulically driven torque motors. By monitoring the amount of torque needed to rotate the shaft, it is possible to determine when the pile has encountered a degree of resistance necessary to support the required load.
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Advantages of Commercial Screw Pile Foundations