The helix steel
system is installed
trained to install
The helix steel piers are installed using rotary motors having
forward and reverse capabilities. The piers are positioned and
angled as specified in the approved construction/engineering plans.
Helix steel piers attached to structures are installed either vertically
plumb or at a slight inward slope projecting under the foundations.
The helix steel piers must be
installed in a continuous
manner, with the rate of pier
rotation in the range of 5 to 20
revolutions per minute.
Extensions are selected based
on the number and length,
installation torque and site
conditions as specified in the
approved plans and are
connected to the helix steel piers with the coupling bolts. Coupling
bolts are tightened firmly with a wrench. The piers are installed to
the minimum depth shown on the plans, but with the top helix not
less than 5 feet (1525 mm) below the bottom of the foundation.