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An expert piler installing piled raft piling.

Piled Rafts

This requires a slab to be supported on piles. In underpinning applications the slab is toothed into the wall of a building, divorcing it from its previous foundations. Loss adjusters frequently choose this option to overcome subsidence or settlement problems.

Combining piles and traditional underpinning makes it possible to provide deep foundations where none existed before.

Piles of suitable depth are installed on either side of the structure, or internally/externally, in a cantilever situation and then beams are cast between them, providing a ‘bridge’ for the structure to sit on.

This technique is used when traditional underpinning becomes uneconomic, i.e. where the suitable bearing strata is deeper than 2-3m.

This application is becoming increasingly popular where new construction work is being undertaken over existing drains or tree roots.

All domestic and insurance projects qualify for the 12-year ASUC Plus Defects Insurance Guarantee. Get in touch for more details today!

Is traditional underpinning not economic for your project? Call Neil Foundations today on
01252 550 222
and speak to one of our highly experienced and knowledgable engineers.

Piled Raft and Piled Raft UnderpinningRead More

Combining piles and traditional underpinning makes it possible to provide deep foundations where none existed before. Piles of suitable depth are installed on either side of the structure, or externally, in a cantilever situation (either driven, augered or contiguous flight bored) and then beams are cast between them, providing a ‘bridge’ for the structure to sit on.

View Piled Rafts Underpinning PDF

Piled Raft for Domestic PropertiesRead More

A slab is cast on a matrix of piles, thus saving costs and time of installing ground beams and the added expense additional disposal of arisings.

The slab edge can be left square, have a 'boot' detail to hide the concrete edge, or be fitted with a steel angle to take the external course of brickwork. This application is particularly good in 'no dig' tree root situations.

View our Piled Raft Factsheet.

Richmod Wood Sunningdale

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