Grouted Helical Piles
The Hybrid Advantage: Strength Meets Low Impact
CNT Geotechnical’s grouted helical piles are engineered for projects that demand high load capacity in difficult soil conditions. By integrating a high-strength grout column around the central shaft, this hybrid system significantly increases skin friction—doubling load capacity—while preserving the low-vibration, low-disturbance benefits of traditional helical pile installation.
Compliance and Approval
Executed DOT approved projects
Executed Federal Contract projects
Executed FAA construction projects
ISO 9000-Certified Manufacturing
From the first pile to the millionth, every CNT Geotechnical product meets the same exacting standards—guaranteeing uniform performance and reliability on every project.
ICC-ESR Certified
CNT Geotechnical products are backed by an ICC-ESR report, the industry-standard verification that our manufacturing process consistently meets code requirements. This certification ensures that the products we deliver are identical in quality and performance to those submitted for independent testing—giving you confidence in every pile we install.
IBC-Compliant Deep Foundation Systems
All CNT Geotechnical deep foundation elements are fully compliant with the International Building Code (IBC). With CNT, you're building on a foundation that’s not just strong—it’s code-approved and legally sound.
Helical Pile Types
Grouted
helical piles
Grouted helical piles offer the advantage of 100% increased load capacity in similar soil conditions compared to traditional helical piles.
Cased grouted
helical piles
The cased grout column is primarily used to resist higher lateral loads or in applications where the pile will be exposed, such as for excavation support.
How it works
What to Look for in a Geotechnical Vendor
Engineering and Production
CNT geotechnical
In house engineering
Ensures ability to design to a higher degree of accuracy a pile that fits the project requirements. It also to schedule engineering for higher priority jobs since we have control over that are not beholden to a subcontractor.
CNT geotechnical
Yes
Helix diameters 8” to 36" and shaft diameters 2" to 24"
The ability to design a pile that truly fits the requirements of the site
CNT geotechnical
Yes
New certified steel
Code compliance, used, recycled, and rejected steel has a failure potential.
CNT geotechnical
Yes
Uses American Made and Sourced materials
Many contracts require American sourced materials, non American materials do not have as stringent quality in their steel as American suppliers. Lastly, we like to support American workers.
CNT geotechnical
Yes
End bearing combined with skin friction
The ability for the pile to carry additional loads
CNT geotechnical
Yes
Hot dip galvanized
An additional protection layer against corrosion
CNT geotechnical
Yes
Seismic Code compliant
Protects the structure in the event of an earthquake
CNT geotechnical
Yes
Service
CNT geotechnical
Rapid Response Install Team
This ensures that projects with tight timelines can be completed without delays in the overall schedule.
CNT geotechnical
Yes
Certified welders
Ensures that all the welding is performed with properly trained welders with certificates proving they are competent in their trade
CNT geotechnical
Yes
No weld failures
The weld is the critical component that holds the system together; if the weld fails, the system fails.
CNT geotechnical
Yes
Lifetime warranty
Hundreds of thousands of piles in the ground without a single failure and guarantees in writing that anything constructed will never move.
CNT geotechnical
Yes
Key Benefits
Strength Beyond Standards
Combining end-bearing capacity with enhanced skin friction
Efficient Installation
Quick, low-impact process ideal for tight or sensitive project sites
Cost-Effective Solutions
Cost-Effective Solutions
Weather Resilience
Installed in all conditions, keeping your project on schedule
Applications
Structural foundations for buildings and modular units
Retaining walls and flood defenses
Solar farms, wind turbines, and telecommunication masts
Underpinning existing foundations in challenging soil conditions
Related Projects
