What are Combi walls?
Combination Walls are structural elements combining Sheet Piles and King Piles to form a stronger wall for high strength retaining wall applications.
Box Piles are an efficient way in which combination walls can be easily created. They use existing sheet pile sections available such as MHZ, or MHU sheet piles and weld together to form a box. These boxes can be paired with single sheets to form a strong wall. When sheet piles are welded to form a box, the piles act as a King Pile and have bearing capacity.
CHU TRIPLE BOX
CHU QUAD BOX
PIPE + MHZ
Pipes have traditionally been able to withstand both transverse and axial load. When CP2 interlocks and MHZ Sheet piels are coupled together, it can easily form a strong combination wall. The benefit of pipes is the ability to customise the Outside Diameter, Thickness and Steel Grade to cater to the required strength of the wall. The MHZ sheet piles then act as an intermediary sheet piles and cutoff wall.
BEAM + SHEET PILES
Advancements in rolling techniques have enabled us to build up beams with Hot Rolled Flanges with interlocks to thread MHZ Sheet Piles. The resulting Beam acts as a King Pile providing the required stability and load bearing of the wall. The intermediary MHZ sheet piles help to transfer the load and cut off any soil erosion behind the wall.