A foundation is the lowest load-bearing part of a building. It is typically out of sight below ground level, and acts as the structure’s point of connection with the earth; in other words, it transfers the structure’s load to the ground.
Foundations can be divided loosely into two types – deep and shallow. In this article, Piling Experts will discuss the difference between shallow and deep foundations, list examples of each kind, and explore the benefits of deeper foundations in a residential context.
A shallow foundation transfers the load of the structure close to the surface, rather than at a greater depth. It is typically wider than it is deep. Sometimes, a depth of 3 metres is used to separate a shallow from a deep foundation. Types of shallow foundations may include:
Conversely, a deep foundation transfers the structure’s load deep within the earth, penetrating the subsurface layers to a greater depth. The prime example is prefabricated piles being placed into the ground, in situ, by a pile driver. A quality piling rig, matched with the appropriate piles, can go up to 30 metres deep.
There are various different types of piles including screw piling, bored piles, and underpinning. Browse our website for more information on these types.
The correct solution depends on the project and is something to be determined by a professional with an engineering background, who has worked within screw piling Wollongong.
Shallow foundations may be appropriate when building a small, light structure, that requires less technical complexity. For example, a shelter, or a home on a perfect earth. In this context, they may be an affordable option.
Deep foundations may be appropriate when:
Both types of pile types have their application. Shallow foundations may be considered for light applications, whereas pile-driven, deep foundations offered by your local screw piling expert will be used for all heavy jobs beyond a certain point.
However, there can be an interesting grey area around residential settings. Builders or owner-builders can be uncertain about which path to go down and should always seek advice from a technical expert in screw piling Newcastle.
However, there may be a number of arguments in favour of the deep foundation method screw piles, compared to a concrete slab foundation for the residential setting, when building a home. These arguments include:
For more information, browse our website, or contact us.