Helical Piles consist of a shaft fabricated from either solid steel square bar or tubular steel. Welded to the shaft are a series of helical plates. The plates vary in diameter from 6 inches to 16 inches and typically have a thickness of 3/8 or 1/2 inch, depending on the application. The standard lead shaft length of most products are 5 feet and 7 feet; however, other links may be specifically fabricated for specialized applications. Helical piles are considered deep foundation elements. They are usually installed into the soil to an average depth of 22 feet in the Piedmont region. Extensions of various lengths are available and are supplied couplings and hardware for attachment to the lead section, allowing the helical pile to reach the desired depth.
Helical piles may terminate with a pile cap that embeds into new
concrete foundation or foundation underpinning bracket that attaches
between the helical pile and the foundation footing or slab.
This allows for the transfer of the load from the foundation, through the questionable soils into the helical pile.
- Rapid installation
- Low installation cost
- Vibration free installation
- Installs in areas with limited access
- Little or no disturbance to the site
- Soil removal from site unnecessary
- Installation torque Correlates to verified capacity
- Easily Load Tested to Verify Capacity
- Can be Loaded Immediately after Installation
- All weather installation
- Atlas Piers 50 year warranty
Resistance Piers. Atlas and ECP Resistance Piers belong to the family of underpinning products that are sometimes referred to as micropiles, push piers or pin piles. These underpinning products are hydraulically advanced vertically into the soil using the structural weight of the building as a reaction force. Resistance piers are in-bearing piers that do not rely upon, nor require, skin friction to produce support. They are driven individually using the weight of the entire structure as a reaction during the installation. During the load transfer and restoration effort, hydraulic jacks are placed at multiple pier locations and pressurized simultaneously. Therefore, creating the ability of the system to develop significant factors of safety.
- Ultimate capacity limits up to 115,000 lb.
- Proof test loads: up to 86,000 lb.
- Standard lift – 4″ fully adjustable
- Continuous lift available
- Greater lift capability with optional longer bracket rods
- Installs from Outside or Inside the Structure
- Installs with Portable Hydraulic Equipment
- Installs with Little or No Vibration
- Installs to rock or verified end bearing stratum
- 100% of Piers are Field Load Tested to Verify Capacity During Installation
- Atlas Piers 50 year warranty
Other Helical Applications:
Helical Slab Piles are
another variety of helical underpinning, and there are multiple piles to choose from with varying capacities. These piers provide support for failing slabs in areas such as garages, basements and patios. They are installed through a cored hole in the concrete slab and secured with a specifically designed slab support bracket that ensures effective permanent support of the structure.
Helical Tiebacks are essentially helical piles serving in tension, and are very effective when addressing bowing walls, cracking walls and other problems with foundation walls. They screw horizontally into the soil mass on the opposite side of the wall where they generate capacity and secure the wall internally, similar to conventional concrete dead men.
Remember, these are just some of the many solutions that we offer for residential foundation repair.
Contact the Atlas team for assistance on getting your foundation repair project started today!