Piling is used in the construction of buildings, bridges and other projects when the soil at the job site isn't able to support the weight necessary for the structure at shallow depth.

Why is piling needed?

Piling is an essential part of building works to ensure strong foundations and prevent the risk of any future subsidence or ground movement. ... If your property is built on piled foundations, any additions will require piling to ensure the new construction is built on a like for like basis.

Why is piling done in construction?

On unstable soils, piles are indispensable building supports and may also be used on stable ground when exceptionally large structural loads are involved.