CFA
PILES
The Continuous Flight Auger (CFA) piling method is a quick and versatile solution well-suited for a wide variety of ground conditions and construction projects.
The technique is virtually vibration-free, as well as being one of the quietest piling solutions, making it particularly advantageous for projects in urban settings where minimising disturbance is essential. The combination of a low level of potential nuisance and high efficiency presents CFA piles as an ideal solution for various construction challenges.
WHAT THEY’RE USED FOR
CFA piles prove their versatility by being applicable in a wide range of ground conditions, including gravels, sand, silts, clays, weak rocks, and mixed strata. This adaptability makes CFA piles a reliable choice for diverse construction projects spanning the residential, commercial, infrastructure, and industrial sectors. Whether the project needs stability in loose soils or requires penetration through various geological formations, CFA piles showcase their effectiveness as a dependable foundation solution across a spectrum of construction applications.
THE PROCESS
The CFA pile is a replacement piling technique with piles formed by augering to the required depth using a hollow stem continuous flight auger. Once at the required depth, concrete is pumped through the hollow stem whilst the auger is withdrawn at a controlled rate.
Pile arisings brought to the surface during the augering process are cleared from the auger as it is extracted from the ground, leaving a shaft of freshly placed concrete up to the piling platform level. To complete the pile formation a reinforcement cage designed for project-specific requirements is installed into the fresh concrete.
WHY USE CFA Piles?
Quiet installation
Quick and economical
Wide range of design capacities
Virtually vibration-free
Purpose built in-house rigs
Range of auger sizes available
EXAMPLE CFA Piling PROJECTS
Other piling methods from Roger Bullivant Limited
Roger Bullivant Limited provides a full suite of piling and ground engineering techniques, including:
- Driven precast concrete piles
- Precast concrete piles, precast concrete ground beams and prefabricated foundations
- CFA piling, CHD Piling, CDA piling, CHAD piles, SFA piles and overburden drilling system piles
- Driven tubular steel piles
- Vibro stone columns and controlled modulus rigid inclusions
We deliver to BS EN and ISO standards with CE-marked products. RBL has a multi-year RoSPA Gold record. Our in-house manufacturing, regional delivery model and integrated design capability provide dependable quality and supply resilience.
These alternatives allow us to design and deliver foundation systems tailored to every site, load requirement and budget.
