SFA (Sectional Flight Auger) Piling
SFA (Sectional Flight Auger) Piling
SFA piling is similar to CFA piling but uses sectional augers, making it suitable for restricted headroom environments.
Typical Applications
Basement works
Existing structures
Rail possessions
Low headroom construction
Advantages
Suitable for restricted access
Low vibration
Adaptable equipment
Limitations
Slower than standard CFA
Limited pile depth
Reinforcement installation challenges
Typical Execution Sequence
Position low-headroom rig
Drill using sectional augers
Add auger sections progressively
Reach design depth
Pump concrete during auger extraction
Insert reinforcement cage
Trim pile head
Quality Control
Concrete volume control
Auger extraction monitoring
Reinforcement depth checks
Subject To
Access restrictions
Detailed design
Working platform requirements
