Technology
What is a Screwpile
Screwpiles are displacement end bearing piles that consist of a circular hollow section (CHS) of steel, used for the piles shaft and pitch formed or flat plated helix's that are welded to the piles shaft at specified locations. Helix's are the end bearing elements of the pile and are primarily responsible for the transfer of compression or tension loads from a structure via the piles shaft into the ground. Screwpiles deliver the ability to quickly develop large combined compression and tension design loads in all soil classifications.
Other components are added to a screwpiles design in accordance with the ground conditions, the intended engineered design, the installation method and the sub-foundations interface.
Screwpiles are designed to suit specific requirements including the intended installation method and how the structure's design loads are to be transferred from the building to its foundation and sub-foundation system and finally into the intended soil strata.
Screwpiles vary in shaft diameter, wall thickness and sectional length. The number, size and position of helix's varies in accordance with the site specific geotechnical requirements.
Along with project specific product Screwpile Australia manufactures a range of generic screwpiles to suit domestic housing foundations plus a range of generic cyclonic screw in ground anchor foundations for remote housing buildings commonly known as modular buildings or a donga's.
Screwpiles are wound into the ground using powerful rotary hydraulic equipment fitted to various earthmoving machinery suitable for the application, pile size, ground conditions.
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