Driven Cased Piles

Driven cased pile are simple and economical to drive with an internal drop hammer. They provide flexibility as piles can easily be cut or lengthened and casings can be supplied in any length and in a wide range of diameters

Casings are light but rigid enough to be transported and handled without the precautions needed with precast concrete piles. Cased piles can be installed in difficult site conditions. Used on sites where soft soils overlay more competent strata, permanently steel cased piles are driven with an internal drop hammer to achieve a solid set at depth. Suitable reinforcement is then added and the casing filled with concrete.

This is a displacement pile and creates no arisings. It is particularly useful when piling in contaminated ground as the expensive disposal exercise is avoided. It is also of use on restricted access sites when the removal of spoil is particularly awkward.

With the optional auger attachment, piles can be pre-bored through harder layers before driving casings. This reduces surface vibrations to neighbouring properties.

Smaller diameter driven cased piles are often used in domestic situations and concerns regarding vibration should not rule out this application.

What we do

Pilling

We have a range of equipment to construct different pile types to suit project size, access restrictions, soil types and pile loads.
Pilling

Piled Retaining Walls

These can be constructed in either contiguous or secant arrangement depending on soil type and water table level.
Piled Retaining Walls

Reinforced Concrete Works

To provide a substructure package, we can construct associated concrete works that will tie your piles together.
Reinforced Concrete Works

Piled Rafts

We have a range of equipment to construct different pile types to suit project size, access restrictions, soil types and pile loads.
Piled Rafts

Other Services

From design knowledge, site investigations or to avoid tree roots or drains, NFS has the knowledge and skills to get the job done.
Other Services
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