Foundation Stabilization and Repair Helical Piers Usage
Helical piers are used for new construction and to support existing structures. They are designed for
applications in expansive soils, high water tables, fill areas, and other areas where unstable soils require
a deep foundation. In compression they are used as footers and in tension they may be used to support
retaining or foundation walls. Helical piers are round or square, tubular or bar steel shafts with round
helix plates welded to them.
Foundation Stabilization and Repair Helical Piers -Specification
Specifications
Shaft Size
(inch)
Wall Thick(inch)
Helix Thick
(inch)
Lead Length
(ft)
Helix Size
(inch)
Extension Length
(ft)
2.375 OD.
0.19
3/8 or 1/2
3ft/5ft/7ft
8/10/12/14
3ft/5ft/7ft/10ft
2.875 OD.
0.203/0.217
3/8 or 1/2
3ft/5ft/7ft
8/10/12/14
3ft/5ft/7ft/10ft
3.50 OD.
0.254/0.300
3/8 or 1/2
3ft/5ft/7ft
8/10/12/14
3ft/5ft/7ft/10ft
4.50 OD.
0.290/0.337
3/8 or 1/2
3ft/5ft/7ft/10ft
8/10/12/14
3ft/5ft/7ft/10ft
5.50 OD.
0.362
3/8 or 1/2
3ft/5ft/7ft/10ft
8/10/12/14
3ft/5ft/7ft/10ft
6.625 OD.
0.562
3/8 or 1/2
3ft/5ft/7ft/10ft
8/10/12/14
3ft/5ft/7ft/10ft
Notes: Other sizes are available upon request.
Foundation Stabilization and Repair Helical Piers Features
Shaft material: Seamless high tensile pipe, conforms to ASTM A500 GRADE B
Helices material: ASTM A36 Hot rolled plate
Corrosion protection conform to ASTM A153 standard for hot dipped zinc coating
Round Shank Anchors are Hot Dip Galvanized to meet ASTM Specification A153.
Leading edge of Helices beveled 45 degrees
Greater Section Modulus Strength to resist Twisting and Deflection
Greater Load Capacities
