Installed using an auger displacement tool to ensure there is minimal spoil generated, the columns are typically up to 350mm in diameter and are made of a low strength concrete and are unreinforced.
This ground improvement solution works alongside a load distribution mattress which allows for a traditional sub-structure design such as pad foundations, strip footings and ground bearing floor slabs.
Rigid inclusions are a ground improvement technique that improves settlement performance, increasing load-carrying capacity and reducing compressibility of the poor soils.
They are ideally suited for warehouses, industrial and commercial sheds, embankment support for infrastructure and in some cases residential properties.
Rigid Inclusions begin with the set up of a displacement auger over position and the commencement of drilling to design depth.
Concrete or grout is pumped from a concrete drum through the centre of the auger while it is extracted.