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Steel cased driven pile
Construction sequence
1. Positioning of the tube and forming of a plug to seal the bottom of the first permanent tube. Using a free-fall hammer to compact the plug that causes the lower casing segment to be driven into the soil.
2. Welding of the additional tube elements of limited length and continuation of the driving phase.
3. Driving to the required installation depth
4. & 5. Casting (plastic) concrete
6. Placement of the reinforcement
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Fields of application
In confined, narrow and difficult to access working areas and/or spaces with restricted headroom
In aggressive soil conditions and contaminated soils
Suitable in soils with strong underground flow of water, where the fresh concrete is protected by the casing
Well-suited for piling through cavities or very soft and unstable top or intermediate layers of soil where overconsumption of concrete is likely to occur.
Where the cut-off level is located above the ground level
Possibility to maintain with great accuracy the concrete level: execution of non-concreted lengths is possible
Wide range: industrial projects, infrastructure, hydraulic engineering works, railway works, housing construction, rehabilitation, renovation…
Environmental impact
Limited vibrations
Limited noise pollution since driving is performed inside the tube
No soil removal (soil displacement pile)
A stable, dry and flat work platform is required.
Technical specifications
Standard diameters range from 168 up to 609 mm
Length: theoretically unlimited
Allowable bearing capacity up to 2.275 kN
Possibility to withstand horizontal forces if high bending stiffness and shear resistance is required
Inclined piles with an inclination up to 1/3
Also called steel cased driven pile
In certain applications, if higher safe working loads are needed, the piles could be executed with an enlarged base: see the Bawang pile.
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