Steel piles can be driven with very high capacity driving tools, depending on the site conditions. Diesel hammers or heavy drop hammers are the preferred method used for installation. Steel Piles have high load-carrying capacity for a given weight of pile, which can reduce driving costs. Slender H-section piles have a low displacement volume, which can be an advantage, when soil displacement or heave is a potential problem.
Although steel piles have their widest application in the form of sheet piling, they are also used to a considerable extent as bearing piles in foundations. They have the following advantages compared with other pile types. Steel piles:
- Can have a high carrying capacity, when driven to a hard stratum
- Can withstand even hard driving without risk of damage.
- Can readily be cut down and re shaped for further driving
- Cause relatively small soil displacement
- Can be readily extended/spliced without much delay by welding or splicing, thus long piles
- Can be installed without the need of a very long leader
- Can be readily cut if not driven to full penetration, and the cut-off portions can be reused or have value as scrap material
- Can be roughly handled without risk of damage
- Can have good resistance to lateral forces and buckling
- Can be easily combined with water jetting and grouting.
- Steel piles are used in marine structures where their resilience and column strength are advantageous in resisting impact forces from the berthing of ships. Corrosion may not be a drawback, as there are effective methods of protecting steel piles.
Terradrive offers four main types of steel piles:
- H-section piles
- Box piles
- Tube piles