Stelcor piles have been in use for decades as foundation support worldwide. CMI Structural Solutions has perfected the architectural art in geotechnical designs by vastly using stelcor piles in the foundation business for more than 22 years.

Stelcor Piles Definition

Stelcor piles are devices used in foundation engineering, especially deep foundation constructions set to hold more than 200 tons.

Stelcor piles employ the elements of conventional micro piles, but they set into the ground faster and cleaner. They combine the advantages of grout and steel, and less equipment and minimal spoils are required during the installation. They also consistently produce better results than initially projected in the design.

Stelcor Piles Installation

Installation of stelcor piles uses a hydraulic-powered rotary gear. The pile is continually turned while downward pressure is exerted from the top on the steel core, where a continuous grout flow is ensured from the pile top.

The displacement head on the top of the pile displaces soil while drawing in grout into the annulus it creates from the drilling effect.

Using reverse flighting, installing a stelcor pile ensures a consistent grout column plus a structural load transfer into the 80 KSI steel core. In addition, the grout ports on the steel column provide a consistent placement of grout along the pile length.

Note that there is no removal of soil during foundation repair, but rather a new steel core gets installed and embedded into the ground for each pile.

Parts and Functions

The lead displacement section of a stelcor has a driving plate, a lateral displacement plate, and a tributary deformational structure.

The function of the driving plate is to advance the pile into the ground and offer end-bearing support. The lateral displacement plate ensures a positive annulus about the steel core. It achieves this through the solid outward displacement, which enhances density around the pile element.

The tributary deformational structure gives a ribbed effect along the pile shaft with grout, augmenting the soil bond and load conversion in geotechnical systems.


Compared to many other micropiles, Stelcor is a high-capacity DDM and has a lower cost per kip. Additionally, it has a predictable grout volume and displacement, which gives it a high lateral capacity.
It also has environmental and cost-saving paybacks, including no vibration, minimal spills, cross contamination, and installations on high tables.

Applications of Stelcor Piles

Stelcor micropiles provide a perfect solution for attaining high axial load bulks in awfully poor soils and shallow depths. Stelcor has a consistent record of higher than projected load test outcomes both in compression and tension.
Some examples of applications include high-towering buildings, silos, sewer supports, pipe racks, boardwalks, and more.


Contact CMI Structural Solutions Today!

If you are looking for outstanding results in your commercial, municipal or industrial foundation projects, contact CMI Structural Solutions today. The CMI team is dedicated to safety and increased, top-notch moral values, and strives to provide excellent service to our customers. We will meet all your geotechnical construction and deep foundation needs with guaranteed valuable alternate designs.