Cold formed sheet piles
Cold formed sheet piles from the ArcelorMittal PALFROID mill offer a great variety of sections in accordance with European standards. Sheet piles are now available in 3 - 9 mm thick sheet steel sections within the following families:
- PAU/PAL sections with a thickness range from 3 to 9 mm
- PAZ sections with a thickness range from 5 to 9 mm
- Trench sheeting walls: structural elements incorporating overlapping joints
Cold formed sections are recommended for the structural protection of banks from erosion and collapse, waterways, and retaining walls of medium height. They may also be recommended in the context of sheet pile cut off or confinement walls at polluted sites.
They are also used in the construction of noise barriers as sheet piles provide the possibility of fixing a sound-absorbent facing to their front.
Main characteristics of cold formed sheet piles:
- cover elastic section modulus range from 100 to 2 470 cm3/m
- constant thickness over the whole section, from 3 mm up to 10 mm (depending on the section)
- good ratio of elastic section modulus/mass
- high width, reducing handling and installation time
- reduced depth (of some sections) for structures facing space limitations
- angle deviation of the interlocks of 10º
- shear force transfer on neutral axis is guaranteed (important issue for U-type sheet piles)
- corner sections can be supplied with pre-bent fabricated sheet piles
Optimised shape & cost effective
PAU/PAL sections have an optimised shape to achieve an excellent ratio section modulus/mass for limited height sheet pile walls.
PAZ sections are the most cost-effective type of cold formed steel sheet piles with high width that significantly reduces the installation time. They are particularly well adapted for reinforcing dams and river or canal banks.
Trench sheets are used to form a continuous wall through the overlapping mainly for sewerage and drainage works, and particularly sheeting for small excavations and temporary works.