Sectional Flight Auger (SFA) piling enables the installation of piles in low-headroom environments or within restricted-access sites and are typically used in the same ground conditions as conventional continuous flight auger (CFA) piles. SFA piling is the preferred method where access is restricted or headroom is limited, and where CFA rigs are unable to operate.
As a bored, soil-replacement piling technique, it is particularly suitable for operations within buildings, beneath structures such as bridges, or in other areas with reduced headroom and limited access.We have the capability to construct piles up to 900 mm in diameter to significant depths, across a range of ground conditions throughout the UK. These piles can be installed with headroom constraints as low as 3.75 m.
SFA techniques include adding and removing augers to achieve design depth and can also include the use of temporary casing where ground conditions require.
