Fabrication and installation of screwpiles -
fast flexible and sustainable foundations.
We are the largest company in the UK designing, manufacturing and installing large diameter screwpiles. We offer a large range of diameters such that the product can support a variety of structure types and load cases. These steel foundations offer advantages over mass concrete bases, with fast installation, design flexibility on challenging sites and improved sustainability performance.
There is no concrete to pour and cure so both foundation and superstructure can often be installed in a single shift. Screwpiles and grillage solutions are able to cope with steep slopes, soft ground, congested sites and restricted access.
FLI engineers design screwpiles for structures across all infrastructure markets, from single post signage to 60m towers and cantilever gantries.
For a full description of screwpile advantages and limitations, download our screw pile guide.
Rapid Deployment Foundations
This solution comprises a grillage supported on screwpiles, micropiles or concrete ballast. Our 'off the shelf' or bespoke designs support anything from transmission towers to motorway gantries. The solutions are able to cope with steep slopes, congested sites or soft ground and the grillages can be buried or incorporate working platforms, cabinets and steps. The solution can be tailored to the specific requirements of the Client. For example, FLI Structures received a supplier 'Innovation in Rail' award from Network Rail for a lightweight collapsible grillage range for monopoles and lattice towers up to 15m in height. The collapsible grillages are simple to transport and handle, allowing easier access to restricted sites. The solution separated the tower and cabin supports where the standard design was combined.This reduced the weight of the foundations to less than half.