12-STOREY NEW CONDOMINIUM SUPPORTED WITH CHANCE® HELICAL PIERS

A new 12 storey condominium tower was to be built on a site where an existing factory had been removed years earlier. Due to the previous construction activity, the varying fill surface soils were unsuitable for shallow footings and required deep foundations.
Design-Build Deep Foundations were designed and installed by EBS Geostructural as requested by the developer’s representative

THE PROBLEM
The site was located directly beside the Grand River and had a high watertable.
Driven piles and drilled caissons were a more expensive option due to the cobbly soil below the fill material.
Vibrations were an issue as the construction site was surrounded by residential structures.</p>

THE SOLUTION
The Chance Helical Piles were chosen due to the ability of the pile to navigate the surface soils with small obstructions and penetrate the cobble rich material
Eighteen load tests were carried out across the site ensure the piers could carry the required loads
The solution proved to be the most cost effective option

Compression Load: 1265kN (285 kips)
Depth: 5 to 15 metres
Total Number of Helical Piles: 730 CHANCE® Helical Piles