Foundation Solutions
Engineering Specs for Ground Screws & Helical Piles
Ground Screw Construction:
Q235B Steel
Continuous Welded Helix
Hot-Dipped Galvanized
-ESR-4226
Foundation Repair:
Helical Pile Load Testing:
Helical piles provide structural support for foundation repair by transferring loads from unstable surface soils to deeper, competent strata.
They are installed using hydraulic torque motors, with capacity verified through torque-to-load correlation.
Once the target depth and torque are reached, underpinning brackets connect the piles to the existing foundation, enabling load transfer and stabilization.
Click here for more info on Foundation Repair.
This standard provides minimum requirements for testing deep foundation elements under static axial compressive load. The test is a specific type of test, most commonly referred to as deep foundation load testing or static load testing. This standard is confined to test methods for loading a deep foundation element or elements from the top, in the downward direction. The loading requires structural elements be constructed that resist upward movement, often referred to collectively as a reaction system. The principal measurements taken in addition to load are displacements.
-ASTM D1143
Load Capacities:
-ESR-4226
New ConstRUCTION:
Helical piles can be used to support large commercial buildings by providing deep foundation support in sites with poor surface soils or high water tables.
Multiple piles are installed beneath load-bearing elements such as columns, grade beams, or slab edges.
Their capacity is achieved by advancing the helices into competent load-bearing layers, with torque measurements used to confirm design loads.
Helical piles can be designed in groups or clusters to handle high axial and lateral loads and are often used where traditional deep foundations like driven piles or caissons are impractical due to access, vibration concerns, or environmental restrictions.
Our Services
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Ground screws are a no-concrete foundation that screw into the ground. They offer fast, stable support for outdoor structures.
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Helical piles are engineered for deeper, heavier-duty applications.
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Pull-down micro piles combine helical piles with grout to create a reinforced, high-capacity foundation. They’re ideal for heavy loads and poor soil, offering strong support with minimal excavation.
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Helical pile testing measures the load capacity and performance of a pile after installation. Common tests include tension, compression, and lateral load tests to ensure stability and compliance with engineering requirements.
Ground screw 3.00”
Height 63 in. (1.60 m)
OD 3.00 in. (7.62 cm)
Load Rating (Silty Sand) 2450 lbs. (1115.38 kg)
Load Rating (Sandy Clay) 8129 lbs. (3687.25 kg)
Cost $$
-ICC-ES ESR-4226
Ground screw 4.50”
Height 63 in. (1.6m)
Width 4.50 in. (11.43 cm)
Load Rating (Silty Sand) 4977 lbs. (2257.5 kg)
Load Rating (Sandy Clay) 12823 lbs. (5816.4 kg)
Cost $$
-ICC-ES ESR-4226
Helical Pile 10” x 5’
Height 63”
Width 10”
Mass
Torque Rating
Load Limit
Best Uses
Cost $$
