ESC's combination wall series are ideal when the standard series of sheet piles do not have the strength to resist the required design loads. The King Piles (which can either be pipes or H Piles with welded connectors) withstand most of the bending loads (may include vertical loads), with the intermediate infill sheet piles to transfer the soil and water pressures to the King H Piles. The infill sheet piles can be shorter - between 60-100% of the King Pile length.
H Pile Combination Wall
H Pile Combination Walls utilise King H Piles which are the main structural member and an infill sheet pile as an intermediate member to transfer the loads and provide a cutoff. These can provide superior structural properties compared to sheet piles alone.
Pipe Pile Combination Wall
Pipe Pile Combination Walls utilise King Pipe Piles which are the main structural member and may or may not have an infill sheet pile as an intermediate member to transfer the loads to the King Pipe Piles and also provide a cutoff.