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Helix Piers
Dixie piers consist of
one or more helicalshaped
circular steel
plates welded to a central steel
hub. After fabrication, the
piers have a Class B1, hotdipped,
galvanized coating,
complying with
ASTM A153. The
depth of the helix
steel piers into the
soil is typically
extended by adding
one or more steel
hub extension shafts mechanically
coupled together to form
one long, continuous pier.
Extensions can be with or
without attached helical-shaped
steel plates.
Each helical steel plate is 3/8
inch (10 mm) or 1/2 inch (13
mm) thick and has an outer
diameter ranging from 6 to 15
inches (152 to 381 mm), and
an inner annulus either 11/4,
11/2 or 13/4 inches (31.7, 38 or
44.5 mm) square. Each plate
is formed with all radial sections
normal to the central longitudinal axis, ± 3 degrees.
The helix pitch is 3 inches
(76 mm).
The central steel hub of lead
sections and extension
sections is round cornered
square (RCS), solid
steel bars. RCS
bars include 11/4,
11/2 or 13/4
inch (31.7, 38 or
44.5 mm) square
sizes.
Dixie anchors are
available in single,
double, triple and
quadruple helix configurations.
Helix sizes and bar sizes may be
custom ordered in any combination
as required for the application.
Dixie extension bars are
available in 31/2, 5, 7 and
10 foot lengths.
Each lead section of a helix
steel pier has provisions at the
top for a connection to an
extension, and has an earthpenetrating
pilot at the bottom.