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Injection Piers
We use injection piers to repair foundations that have settled due to weak underlying soil or sinkhole activity.
Injection piers are innovative, dual-purpose tools that foundation repair specialists use to stabilize a home's foundation when the soil underneath is weak.
Typically placed 3 to 6 feet apart, injection piers are combined with hydraulic jacks and they allow a foundation to be raised to its original level position.
Injection piers allow grout (aggregate-free cement) to be forced into the soil around the piers. In effect, injection piers combine foundation underpinning with soil compaction. How are injection piers made? Injection piers are available in a variety of designs and sizes, but in general they are rugged steel pipes that can be driven deep into the ground. Heavy steel brackets mounted on top of the piers are fitted under foundation footings.
The pipes are perforated at the bottom 8 to 16 feet so debris can be flushed out with water after the pier is installed to the required depth. Then, grout can be forced down the pipe and out of the perforations into the surrounding soil.
We can install a specific type of injection pier, depending on your foundation's needs.
Grouted pressure underpins are typically hydraulically driven to just above the limestone bedrock. When grout is injected, it helps seal off the underlying limestone from water and further erosion. Grouted pressure underpins support the structure and compact underlying soil.
Helical injection piers are screwed rather than rammed into the earth. They are installed only as deep as necessary to achieve the required resistance. Grout is injected through the pier to consolidate the surrounding soil.
Injection piers are underpins that have several 1 1/2 " openings in the steel casing.
The perforated pipe allows LRE Foundation Repair to pump grout through the casing to permeate the soil surrounding each pier.
This gives the underpins more stability and enables LRE Foundation Repair to compress and compact soil around the pins. To install, we follow these steps:
Contact us today for an inspection on injection piers for your foundation. We serve Tampa, Orlando, Saint Petersburg, Bradenton, Lakeland, Sarasota, Ocala, Kissimmee, Daytona Beach, Clearwater, Largo, Melbourne, New Port Richey, Port Saint Lucie, Vero Beach, Fort Pierce, Spring Hill and the surrounding Florida area.