MacLean-Dixie helical piers are generally used for lifting or stabilizing a foundation settlement problem. Helical piers are also utilized for new construction applications where soil conditions are understood to be poor as a preventative method of avoiding foundation settlement.
- MacLean-Dixie helical piers can be installed in confined areas
- There are no soil spoils when installed
- Helical piers reflect the soil strength parameters as they are installed
- MacLean-Dixie helical piers don’t require the weight of a structure to be installed
- The piers are galvanized high strength steel and combine the advantages of a pipe push pier and a helical pier
- Bolted extensions are added for additional depth if needed
- Installs quickly and virtually vibration free.
- Installers must be trained and experienced.
Helical pier ready for installation. Bracket is in place at the bottom ( silver color ). A manual winch is needed here to provide enough down force for the helix to take hold and pull the pier downward.
An 8000 psi hydraulic drive head twists the pier into the ground through the poor soil layers until stable strata is reached.
Three piers have been torqued into the ground until refusal ( the torque head can twist no more and had obtained the maximum installation pressure ) These piers will now be cut to the proper height, connected to the brackets, and adjusted to stabilize this area of the foundation.