Pipe piling is used transfer the loads of structures from
shallow, weak soils unable to support such a heavy foundation to stronger
layers that are found deeper underground. Pipe piling is driven into the ground
either open ended or closed ended. If it is open ended, soil is able to enter
the tube or it is filled with concrete to provide additional support or
capacity to the structural foundation. There are several materials available
that are used to manufacture pipe piling including: Steel, timber and concrete.
Each are equipped with various advantages and disadvantages, and deciding which
to use relies mainly on the intended project for the product. Knowing some
basic information and which benefits these different materials presents to
consumers makes it much easier to choose the product specific to their needs.
Steel
Steel is a popular choice for pipe piling application
because of the many advantages it provides to consumers. One main advantage is
that steel pipe piling come in a wide variety of sizes while pipe piling made
of material like timber which is usually manufacture in shorter lengths. Steel
is a widely-used choice because of its sustainability in hard-driving projects,
and it is also easier to drive than other materials – especially through harder
soils. Another benefits includes a minor displacement of the soil when steel in
the chosen material. While there are a lot of advantages to steel, there also
some downfalls. It can be costly and it tends to corrode. It also can present
more challenges during delivery and is much louder to drive than a material
like timber.
Timber
Timber piles are constructed of wood, and due to the
material wide availability piles made of timber are usually not as expensive as
other material like steel or concrete. While the cost of timber piles is
definitely an advantage to those utilizing the product, some timber piles –
depending on the type of wood used and the source – may not be the most
suitable choice for heavier loads. Other advantages to choosing timber include
that it is easy to handle and made of wood – a material that doesn’t corrode.
Also, in most cases timber pipe piling is resistant to decayed if it is fully
driven into the ground but it may require treatment beforehand to prevent
damage from decay and insects, which can be a disadvantage to some. Another
disadvantage is timber piles are more likely to be damaged during driving.
Concrete
Lastly, concrete pipe piling is another available choice. Some
positive aspects of choosing concrete are that it is relatively inexpensive and
resistant to corrosion – unless utilized in marine applications. It is also a
good choice because the length of concrete pipe piling can be easily adjusted
to match customers’ specifications and it as a low level of noise as it is
driven into the ground. However, on the flip side concrete does have some
disadvantages to the consumer. It is hard to handle and transport, and splicing concrete can be a real problem.
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