concrete suspended slab for house on helical piles

The Requirement

Foundations for a new-build house were required at this site in Hampshire.

The site presented the following restrictions:

  • Poor, variable ground with the potential for heave.
  • A nearby underground sewer.
helical piles for a concrete slab
piled slab for new build house with heave protection
concrete suspended slab for a house on helical piles with heave protection
concrete suspended slab for a house on helical piles with heave protection
reinforcement for concrete suspended slab for house on helical piles
pouring suspended slab for house on heave protection
concrete suspended slab for house on helical piles
concrete suspended slab for a house on helical piles with heave protection

The Solution

The engineer specified a suspended reinforced concrete slab, supported on our QuadraPile helical piles.

Beneath the slab, a sacrificial void former was installed to isolate the concrete from the ground below, which had the potential to move (heave) in the future.
The piles were driven deeper into the ground to provide a sound foundation to support the concrete slab.

Construction of the walls could then take place on top of the slab.

Our small installation kit meant that access was not a problem and proof testing of the piles in-situ proves their capacity thus eliminating reliance on a ground investigation where the ground is variable accross the site.

Case study reference: 22277