cfa piles

Continuous Flight Auger (CFA) piles are constructed by drilling a hollow-stem continuous auger into the ground to the required depth. The auger provides continuous support to the borehole, eliminating the need for temporary casing or drilling fluids.

• Once the design depth is reached, concrete is pumped through the hollow stem as the auger is gradually withdrawn, filling the void. Immediately after concreting, a reinforcement cage is inserted into the fresh concrete.
• Originally developed for soft, sandy, or water-bearing soils, CFA piles have become widely used due to their rapid installation, low noise and vibration, and suitability for deep foundations in various ground conditions.
•