Driven cast in-situ (DCIS) piles are constructed by driving a closed-ended thick-walled steel casing into the ground and then filling it with concrete.
- Foundations for new buildings (residential and commercial)
- Ideal for large distribution warehouses
- Floor slabs and load transfer platforms
- Bridge abutments and piers
- Where ground conditions are highly variable as they are driven to a set or pre-determined resistance
- Regeneration sites where a legacy of obstructions would otherwise damage pre-formed piles
The 25mm thick heavy steel tube is driven with the end closed by a steel shoe. On reaching the required driving resistance, a full length cage is lowered in to the tube and filled with high slump concrete. The tube is then vibrated out leaving a shaft of concrete. When supporting industrial or warehouse floor slabs, a monolithic 900mm diameter pile head can be cast to a precise level at the top of the pile, avoiding breaking piles down.
- Quick to install and can be installed with an integral pile cap to reduce the thickness of any floor slab supported by them
- Significant load capacities
- No need to dispose of the spoil associated with displacement piling
- Extensive range of pile sizes, typically from 340 to 630mm diameter
- Potential to overcome hard bands or minor obstructions
- Provides a self-sealing displacement pile which limits contamination pathways to the surface which can occur with other piling techniques