CMI installs underpinning to restore sinking buildings or add additional support to failing foundations.
The underpinning process involves excavating to the bottom of the failing foundation and installing helical piles through the soil that caused the failure into stable material. The counterforce bracket system is then installed on the pile and attached to the foundation. Hydraulic jacks are used to lift the foundation to its original state, or stabilize it against future settlement. With the counterforce system, most structures can be lifted to their original elevation. CMI has installed the counterforce system successfully on a variety of projects, from electrical duct banks to very large buildings, effectively restoring foundation soundness.