Concrete Pressed Piers
Concrete Pressed Piers
Shrubs, plants and other vegetation are removed from work areas.
Tarps and plywood are placed around your home to protect the surrounding lawn.
Access holes for the installation of piers are excavated by hand. The holes are the size of a common doormat, extending below the surface three to four feet. If concrete exists in these locations, we must break through these surfaces to create the access holes. Excavated dirt is taken to a protected area of the lawn.
The concrete pilings are driven into the ground using a small, quiet hydraulic ram. The first piling is vertically aligned under the home’s grade beam that extends around the perimeter of your home. Using the weight of the home and the grade beam as a backstop, the ram drives each additional concrete piling further into the ground until refusal occurs, usually at 18 to 20 tons, or three times the given weight of your home at that pier location.
Manual hydraulic jacks used to level the home will be placed upon each pier cap. The crew moves systematically, following the direction of the Field Superintendent, to create a gentle and uniform lift. The Field Superintendent monitors the reaction of the structure and the interior elevation readings throughout the leveling process.
One hydraulic jack is removed and replaced with a concrete cylinder. Any nominal space left between the pier and the exterior grade beam is secured with steel shims. The second jack is then removed and the process is repeated until all piers are secure against the exterior grade beam surrounding your home.
Previously removed dirt is returned to the access holes. Any surface concrete breakouts are filled and patched.
Reinforced Drilled Concrete Pier
WHAT IS A CONCRETE PIER?
For homes and light commercial buildings, concrete piers are concrete columns that are
formed by pouring liquid concrete into holes drilled into the ground.
We offer several different pier sizes and designs depending on the job requirements or
engineers specs. In general, piers extend to a depth of 9 to 12 feet or bedrock and are
machine drilled using a bobcat or smaller auger. Deep drilled piers can also be installed
in low clearance, limited access areas.
HOW LONG DO CONCRETE PIERS LAST?
It is simple, concrete piers will last as long as your concrete foundation.
HOW ARE THEY INSTALLED?
The installation process is simple.
1. In each location where a pier is going to be installed, a hole is drilled down to the
target depth, generally between 9 and 12 feet below the surface of your slab.
Each hole is typically 10-12 inches in diameter.
The holes go down the depth specified by the engineer.
2. Next, a set of reinforcing steel bars are tied together and lowered into the hole.
3. The concrete is allowed to cure or harden for 7 days.
4. When all of the piers are hardened, hydraulic jacks are placed on the piers and are
then used to lift your foundation.
5. Once your foundation is lifted, steel and concrete spacers are placed on the piers to
support your foundation, and the hydraulic jacks are removed.
6. The final step is to cover the piers and clean up.
WHAT IF I NEED PIERS IN MY HOUSE?
Concrete piers can be installed by cutting holes in your floor, digging down beside the
interior grade beams,and then drilling to the target depth. Of course, this is terribly messy,
and can destroy expensive tile and wood floors. If the depth of a pier is greater than the
height of your ceiling, then each pier hole must be drilled with a shaft that can be
dismantled and reassembled as needed. This can be very costly.