CNC Foundations, Inc.

Rammed aggregate piers are made by pre-drilling a hole into the soil of foundation, lifting the aggregates, and then tamping them into the hole. This lifting and tamping process is repeated until the void is filled with aggregate, and each additional ramming step creates a tighter, sturdier compact.

Vibratory stone columns create the compacted fill by way of a vibratory probe either in a pre-drilled hole or with custom rigging. These columns are compacted aggregate that is installed through existing soils to improve the geotechnical properties of the overall soil matrix. They are installed using a specialized vibratory probe called a “vibroflot.”

CNC Foundations offers a wide range of solutions to meet project demands and soil condition requirements, including: Aggregate Piers (also called Vibratory Stone Columns, VSCs, or aggregate piers), Vibratory Concrete Columns (VCCs), Controlled Modulus Columns (CMCs), and Auger Cast Piles. All of these products and solutions come with their pros and cons. You can rely on our team of qualified structural engineers to assess your situation and recommend the solutions that suit your requirements.

Controlled modulus columns (CMCs) are used as a ground improvement solution for weak, compressible, or otherwise soft soil. Some commercial projects require high load-bearing capacity, but the soil that the structure will be built upon cannot stand up to the weight of the structure. To remedy this issue, you can use controlled modulus columns. Since their development in the 1990s, CMCs have become known as a sustainable, cost-effective choice for improving soil stability.

These products are classified as displacement piles in our inventory. CNC Foundations has made considerable efforts to develop and maintain an extensive inventory of the products and tools in our library of services. We do this to shrink our response time, keep costs low, and increase our flexibility in meeting your needs.

Vibratory Concrete Columns (often referred to as VCCs or Rigid Inclusion Piers) are used in areas that require higher loads, but must be installed through very soft soils, commonly peat or other organic deposits. In order to transfer loads to more competent load-bearing strata, vibro concrete columns, or Rigid Inclusions, are used in cases where the soils are so soft and unstable that installation of stone columns would be difficult, or where the vibro stone columns would not have sufficient lateral confinement to carry vertical loads adequately.

In conditions with highly compressible soil, VCCs like this are part of using the surrounding soil to transfer the load of your structure to a more reliable platform. We can perform this process at almost any depth. It is also beneficial that we only have to remove a small amount of soil during the installation process. This advantage avoids the possible costs of spoil removal. At CNC Foundations, we’ve designed our services to deliver the most cost-effective results for your project.