Project Overview
This week, the Dawson Foundation Engineering (DFE) team completed specialist continuous flight auger (CFA) piling works in Wigan, installing 125 No. 300mm diameter CFA bored piles to depths of up to 7.0 metres.
The piles were formed through stiff clay strata and socketed into mudstones of the Pennine Middle Coal Measures, providing a robust foundation solution suitable for the proposed development.
Scope of Works
DFE were appointed to undertake the design and installation of the CFA piles, along with the design of the working platform, ensuring safe operations and programme efficiency throughout the works.
Key elements of the scope included:
- Installation of 125 No. CFA bored piles
- 300mm pile diameters to depths of 7.0m
- Piling through stiff clay and into mudstone bedrock
- Design of an economic working platform
- Efficient spoil and concrete management on site
Engineering Approach & Equipment Selection
Following a detailed review of ground conditions and access constraints, DFE selected the Klemm 709-3G piling rig as the optimal solution for the project. This rig was chosen to limit ground bearing pressures, enabling a more economical working platform design, while still allowing each pile to be installed in a single auger stroke.
The use of the 709-3G, combined with a 7 cubic metre agitator, allowed for continuous concrete supply and efficient pile formation, maximising productivity across the site.
Programme & Performance
The carefully considered plant selection and in-house design input resulted in excellent on-site performance. The piling works were completed two days ahead of programme, delivering both time and cost benefits for the client.
This outcome reflects the experience, coordination and professionalism of the DFE site and engineering teams.
Our Expertise
Dawson Foundation Engineering provides a full range of piling services, including:
- Continuous Flight Auger (CFA) piles
- Sectional Flight Auger (SFA) piles
- Bottom-driven piles
- ODEX piles
- Screw piles
- Associated reinforced concrete (R.C) works
With in-house design expertise and a flexible delivery team, DFE consistently delivers efficient foundation solutions across a wide range of commercial piling projects. To view more of our recent projects, visit our Our Work page.
