Bottom Driven Piling

At Performance Foundations, we recommend Bottom Driven Piling when there is, poor ground conditions, the piles need to carry high loads and deep foundations are not possible.

Bottom driven piling is where close ended thin walled steel lining tubes are pile driven in lengths using a cylindrical drop hammer operating within a casing striking a dry mix concrete plug. The steel tubes are typically 2 to 3 meters in length and are joined by full fillet welding as installation proceeds. The bottom driven piles are installed to a predetermined set or depth depending on design criteria and single bar or cage reinforcement are introduced and the bottom drilling pile casings are in-filled using workable high strength concrete or grout.

This method of piling has a number of advantages, not only is it a quick and efficient form of piling, but it also is:

• More economical, mobile and yet still powerful
• There is low noise and low vibration impact on the environment
• No spoil needs to be removed
• Minimal site preparation is needed
• It can be installed successfully into most ground conditions including peats, soft clay and loose sand where some other techniques are inappropriate
• Bottom driven piles are self-testing when driven to set
• Permanent casing prevents any risk of concrete/grout loss thus ensuring pile integrity
• Concreting in the dry in a single operation to a controllable level
• Good axial and shear capacity

For more information contact us today on 01444 411114 or email and let us come and provide you with a free site survey or quote.