Continuous Flight Auger (CFA) Piles

By October 24, 2014 No Comments
Under the right conditions, Continuous Flight Auger (CFA) piles, also commonly called Auger cast-in-place (ACIP) piles, offer a number of scheduling and economic advantages over other deep foundation options. Installation is rapid, vibration-free and can be accomplished in low headroom situations if required. CFA piles are constructed by rotating a continuous flight hollow stem auger into the ground to design depth and pumping high strength concrete through the hollow stem as the auger is slowly withdrawn. If required, reinforcing can be added while the grout is still fluid. Typical pile diameters range from 12 to 18 inches. Typical loads range from 10 to 150 tons. CFA piles should be considered where speed of installation is important, a large number of piles are required, and access is unrestricted. Read more.