Helical piles are a versatile, environmentally friendly and cost-effective technology with many uses across civil engineering industries such as buildings, transport and communications. And, where secure fixings are required GRIP® piles are a great choice due to their versatility which allows them to be used for a wide range of applications and in all types and consistencies of rock.
What are Helical and GRIP® Piles?
Helical Piles
Helical Piles are steel shafts with a series of low-pitched circular steel helical plates welded at strategic positions along the shaft. The plates give the foundation both tension and compression bearing capacity which enables them to be used for a wide range of applications across many industries and sectors.
The piles can be connected in groups using a steel load transfer grillage and are screwed directly into the ground by machine-mounted hydraulic or electrically powered drilling equipment.
GRIP ® Piles
ScrewFast’s GRIP® Pile technology is a hybrid micropile, used to transfer load through soft soil into shallow rock, or very hard soil. A GRIP® pile consists of a shear tube made of steel CHS which encases the pile through the soil and a rock socket, which anchors the pile into the rock. The rock anchor comprises a central reinforcing rod encased in grout with a sacrificial drill bit at the toe. The shear tube is installed first – usually by vibrohammering – and increases the piles resistance to lateral loads.
