Project Snapshot
- Type: Residential house extension
- Location: Altrincham
- Client: Prime Building
- Piles: 2 x 150mm, 4 x 168mm
- Beam: 11.3m x 500mm x 350mm
- Concrete: 2.31 cubic metres
THE CHALLENGE
When setting out to build this customer’s house extension, Prime Building quickly deduced that it needed piled foundations. Not only that, but the building was showing signs of subsidence on the rear-left corner of the property, which required underpinning.
Rhino Piling arrived on site and began driving piles, but uncovered pre-existing, 1.5m-thick concrete just 150mm below the depth of the trench.
WHAT WE DID
Piling
In order to tackle the pre-existing concrete, our operators Jayden and Sean used their combined experience for a solution; using the pneumatic mole on its own to break the concrete. It worked exactly as intended, making room for them to begin driving piles, which achieved a depth of between 8-10 metres each.
The issue of subsidence was rectified quickly by extending the trench below the rear-left corner of the building, acting as a cantilever when concreted.
Steel Ring Beam
The footing was shuttered and backfilled, allowing for the ring beam to be installed. A total of 11.3m was required.
Concrete
We used Rhino Concrete for a reliable service and top-quality product. The concrete was grade C35 (what we recommend for foundations) and installation was stress-free and efficient, with our Piling team to provide the finish. If you need concrete, click here.
THE OUTCOME
This homeowner went from needing extension foundations as well as a subsidence issue, to being officially out of the ground with their house now safe and free from the threat of collapse, in just two working days.
Phone: 0161 706 0365 | Email: enquiries@rhinopiling.co.uk
