Why are CFA Piles Useful?

October 7, 2011 by Harvey Banks · Comments Off
Filed under: CFA Piles 

There are many different types of foundation piling available that can be used in a variety of situations. One of these types is CFA piling, but what is it and why is it useful?

CFA piles are a type of piling that is especially good for use on building sites where there is a need to keep noise to a minimum. CFA stands for continuous flight auger and the CFA piles work on a relatively simple premise.

A hollow auger is inserted into the ground once the necessary depth has been worked out, and then concrete is pumped down the hollow stem. At the same time, the hollow auger is withdrawn and, in order to reinforce the piling, a reinforced cage is used.

One of the benefits of CFA piles is that there is no casing involved and so there is minimal disruption associated with using them. They also help to keep vibrations to a minimum and can be used on large projects, making them a good piling solution for a range of situations.

Different projects will have different piling needs, so it’s important you speak to a piling professional to make sure you get the right solution for you.

Advantages of a Continuous Flight Auger (CFA) System

September 17, 2010 by Harvey Banks · Comments Off
Filed under: CFA Piles 

There are several reasons why the use of a CFA system is beneficial. They can be installed quickly and quietly, with low levels of vibrations and are also an environmentally friendly option. Unlike displacement type piles, CFA piles have a very low risk of ground displacement or loose soil that becomes solid causing damage to any neighbouring foundations or utilities.

Another advantage of using a CFA system is that it is possible to monitor the entire installation process of the piles. A flow meter provides accurate data that is then recorded and can be analysed. Information that is collected includes penetration/uplift per revolution, auger depth and injection of pressure at the head of the auger.

The CFA system also has an excellent rate of installation success so it is definitely an option worth considering.