Hollow Stem SFA Piles Installed in Swansea
Dawson Foundation Engineering recently completed a piling project in Swansea, installing 25 No. 300mm diameter hollow stem SFA piles with a Klemm 702 rig — read how the team approached the project.
Hollow Stem Bored Piles in Stockport
Dawson FE completed a restricted access piling project in Stockport town centre, installing 34 No. 300mm hollow stem bored piles to depths of up to 7.0m.
Restricted Access Piling in Leeds
Dawson FE completed restricted access piling inside a live Leeds paper mill, installing four 273mm bottom-driven steel-cased piles for a new machine base.
Cased Auger Piling in Scotland
Dawson FE completed 450mm diameter cased auger piles in Scotland, using 508mm temporary casing through soft alluvial deposits before founding into dense gravels.
SFA Bored Piles at JCB Golf & Country Club
Dawson Foundation Engineering installed 88 No. 300mm diameter SFA bored piles at JCB Golf & Country Club in Uttoxeter, with the piles designed in-house to support compressive, tensile and shear actions.
SFA Piling In Surrey
Project Overview Piling is not always picture-perfect. It is often carried out in difficult ground, adverse weather and under challenging site conditions. Our newly acquired Klemm 709 piling rig did not even have time for a clean-down before being put straight to work on a site in Surrey. The project required the installation of 31 no. 300mm diameter hollow stem SFA bored piles, delivered during one of the wettest months on record. Ground Conditions & Site Constraints The working area had already been excavated, with concrete blinding installed across the working platform. Persistent rainfall quickly turned the site into extremely challenging ground conditions, testing both access and stability throughout the programme. Despite the difficult environment, the Klemm 709 performed reliably from day one, completing the works safely and efficiently. Installation Method The scheme utilised Sectional Flight Auger (SFA) piling, a versatile bored piling technique suited to restricted and variable ground conditions. The hollow stem system allows controlled drilling and concrete placement, providing a robust and efficient foundation solution. Engineering & Delivery As with all DFE projects, the piling works were supported by in-house engineering expertise, ensuring the pile design met the required structural loading criteria and ground parameters. This project demonstrates DFE’s ability to deliver specialist commercial piling solutions in demanding conditions, maintaining programme and quality standards even when the weather does its worst. What’s Next Following completion of the Surrey works, the Klemm 709 moved on to its next project in Sevenoaks — hopefully with slightly drier ground conditions. To discuss an upcoming project requiring SFA or bored piling works, get in touch with the DFE team.