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Andres Baquerizo, PE
Auger cast piling, also commonly referred to as Continuous Flight Auger (CFA) Piling, are cast in place piles, using a hollow stem auger with continuous flights. The auger is advanced into the soil to a designed depth and the concrete or grout is pumped through the hollow stem, maintaining a head pressure to fill the cylindrical cavity created as the auger is slowly removed. The pressure and volume of the grout must be carefully controlled to construct a continuous pile without defects. A reinforcing cage is placed through the freshly placed concrete/grout to the design depth. Auger cast piles are commonly used are to provide structural support but can also be used to provide earth retention, especially on-site boundaries. This type of installation can be a very cost-effective foundation system and should be consider in the correct applications. This presentation will review when that it is and how auger cast piles may benefit your projects.
Keller � North America provides a wide range of geotechnical engineering and construction services to improve soils in-place and to both construct new and to rehabilitate foundations. Within our range of services, a Ground Modification solution is generally available for the toughest subsurface conditions.
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