A slurry wall is a system that can provide lateral retention, load bearing capacity and waterproofing to a foundation while becoming part of the permanent structure. It can be built with zero clearance to existing structures, act as underpinning of superficial foundations and, in conjunction with pre-founded columns, constitute the perimeter wall in top-down construction schemes.
Slurry walls are very versatile: they can assume any shape in plan, have thicknesses varying from two to five feet and can reach depths in excess of 400 feet through every imaginable soil condition.
Circular slurry walls permit unbraced excavation while post-tensioned slurry walls allow for greater unsupported spans.