Helical Piers & Helical Piles


Helical piers, also known as anchors, piles or screwpiles, are deep foundation solutions used to secure new or repair existing foundations. Due to their design and ease to install, they are most commonly used whenever soil conditions prevent standard foundation solutions, but are starting to be used as a more cost/time effective alternative on many project. Instead of requiring large excavation work, they thread into the ground. This minimizes installation time, requires little soil disturbance, and most importantly transfers the weight of the structure to load bearing soil.


When should they be used?

Helical Piers and Piles are needed for numerous new and existing residential, commercial, and industrial applications and may be used when the job specifies caissons, driven piles, or micro piles. Once foundations are exposed to moisture over a long period of time or construction is sited on unstable soil, structural and foundation damage becomes visible. This is when helicals are also used to correct compromised foundations. Helical Applications include, but are not limited to:

  • Existing Foundation Issues in a Home or Commercial Building
  • New Construction Projects
  • Commercial Projects
  • Government Projects
  • Oil and Gas Foundation Applications
  • Industrial Foundations
  • Utility Foundation Projects
  • Alternative Energy
  • And Much More

Applications

Residential Applications

Homeowners choose them to prevent and repair sagging foundations. Builders use choose in new construction them to build a stable permanent home foundation.

Commercial Applications

Contractors use our piering systems whenever a deep foundation solution is needed or to avoid excessive excavation. Our system is also a solution for failing commercial foundations

Industrial Applications

Plant managers love our anchors because of speed in which they are installed. With our system there is minimum impact to daily operations.

The Two Types of Helical Piers

PierTech manufactures two patented types of piers. Round shaft, best used in compression situations, and square shaft best used in tension situations.

The Best in the Industry

  • Made from the highest quality steel
  • Patented and ICC Certified Cross Lock Connection
  • Higher torque capacity than the competition
  • Superior lateral strength and stability
  • Galvanized or bare steel options
  • Square or round shafts

Round Shaft Advantages

  • Superior lateral stability
  • Greater section modulus strength to resist twisting and deflection
  • Patented Cross Lock connection
  • Greater load capacities
  • Easy to install
  • Installs in any season
  • Minimal soil disturbance
  • Not affected by a high water table

Composition:

  • A round hollow shaft 2 7/8″ thru 12 ¾” O.D. typical.
  • Circular tapered plates (helices) are welded to the centeral shaft.
  • Helix diameters can range between 6″ – 48″ with a thickness of 3/8″ – 1″.
  • Typical Helix pitch will range from 3″ – 6″.
  • Galvanized or bare steel options available

Round Shaft Helical Piles

In applications where compression is the primary consideration, we recommend using round shaft piers. In Compression our round shaft has several advantages over the typical square shaft.

Square Shaft Helical Piles

In applications where tension is the primary consideration, we recommend our square shaft material. They have several advantages over the typical square shaft anchors.

Square Shaft Advantages:

  • Greater yield and Tensile strength
  • Patented Cross-bolt Connection
  • Increased safety factor
  • Higher torque capacity
  • Easy to install
  • Installs in any season
  • Minimal soil disturbance
  • Not affected by a high water table

Composition:

  • A square solid shaft 1 ¼” thru 2″ typical.
  • Circular tapered plates (helices) are welded to the centeral shaft.
  • Typical Helix diameters can range between 8″ – 16″ with a thickness of 3/8″ – 1″.
  • Typical Helix pitch will range from 3″ – 6″
  • Galvanized or bare steel options available

Cross Lock Advantages

  • Instant alignment
  • Complete steel on steel connection
  • Torque is fully contained in the coupling
  • Zero bolt hole elongation during installation
  • ICC-ER (ESR-3969) Certified
  • Superior strength and lateral stability
  • Reduce installation times up to 50%
  • Offered Exclusively by PierTech Systems

Cross Lock Connection

Our Patented Cross Lock Connection was awarded ESR-3969 from ICC-ES for our 2.875″ diameter helical pile system.  The connection instantly aligns and locks in place,  eliminating the issue of lining up bolt holes or wasting time threading a bolt through a deformed hole. The Cross-Lock allows installers to simply connect and quickly continue the installation process.

How Do They Work?

The helical screw pile is screwed into the soil until a desirable load capacity has been achieved. It is then spaced at pre-calculated intervals to spread the load of the structure. The proper bracket for the application is then attached to the pile based upon the application.

Put PierTech to Work for You

Learn how to self- install or add it to your available services by becoming a certified installer.