Continuous Flight Auger (CFA) is one of the quietest methods of piling available and it is virtually vibration free, which makes it ideal for working in environmentally sensitive or residential areas. CFA piles are constructed by drilling into the ground with a hollow auger to the designed depth. Concrete is then pumped through the hollow stem to the toe of the pile as the auger is simultaneously withdrawn. Finally, the reinforcement cage is inserted into the fluid concrete pile to the required depth.

At Limaks, CFA is our most common piling method and we can undertake projects of all sizes and complexities. Our team offers both design and construct services using CFA piles, and our range of rigs allows us to install piles of various diameter, length and load capacities, depending on the ground conditions and your individual needs.

CFA piles are widely used for projects in areas with unstable soils conditions or water-bearing grounds. They can be installed in most strata, from clays through gravels to soft rock. CFA piles are ideal for multi-storey buildings, sites that border existing structures, or environmentally sensitive sites, where there are lower tolerances to vibration and noise.

CFA piles can provide both load bearing capability and excavation support, and as such they are suitable for most construction projects.

Some of most common applications are:

• Multi-storey buildings
• temporary or permanent retaining walls
• support of transportation structures such as roadway embankment and bridge footings
• ground improvement

Learn more about our expertise, foundation techniques and a full range of services we provide by downloading our brochure.