CFA piling is particularly suited to piling through interbedded sequences of clays and water bearing non-cohesive strata. A CFA pile is formed using a long string of augers, with soil displaced via the auger flights. Piles can be drilled to depths of up to 34m with the concrete pumped through the hollow stem of the augers as they are withdrawn from the design depth. Reinforcement cages are installed immediately after concreting.
Applications
- Bearing piles
- Retaining walls, including contiguous and secant piling
- Low vibrating piling
- Restricted access and low headroom piling
Capability
- Diameters from 300mm - 1200mm
- Torque up to 271kNm
- Cased CFA options available (CPA/CSP piling)
- Heavy duty augers for high tolerance contiguous and secant piling