Union straight web sheet piles are designed for the construction of cellular cofferdams, which can be used when considerable depths of water, or subsequently placed fill are to be retained.
This is the wall form of LARSSEN 43. For supplies of quadruple piles, the weight of the welds and stiffeners must be taken into account.
If quadruple piles are used, b = 1416 mm.
Box piles are pile foundations made by welding together two sections of steel sheet piling or combinations of beams, channels, and plates.