After recently supporting the Glasshouse project in Pittsburgh, we moved our crew across & down the Monongahela River to support the new Riviera at The Pittsburgh Technology Center (PTC).
As one of the first major brownfield developments in Pittsburgh, the PTC currently includes nine buildings - soon to be ten with the addition of The Riviera.The multi-use building was designed by NEXT Architecture and will have six stories with over 160,000 square feet for apartments, hotel rooms and restaurants.
Due to obstructions in the soil left over from the old J&L Steel Mill facility - a common find in Pittsburgh area brownfield sites - Menard offered a shallow ground improvement option to developer Burns & Scalo. Fortunately, we were able to drill through old steel-reinforced foundations and other obstructions without the general contractor having to excavate them - saving time and money.
"While these properties provide challenges when we encounter remnants of the city’s steel history, we’re well-equipped to provide ground improvement solutions for exciting new commercial opportunities in our backyard," said Project Manager James Ramp.
Dynamic compaction was considered at first, but sensitive structures on either side of the site were a concern because of the vibrations & noise the technique would cause. We decided vibro stone columns were the most efficient & economical solution to support the project.
The network of over 300 vibro stone columns we designed & installed will reinforce & increase the bearing capacity of the surrounding riverbank soil, ultimately reducing long-term settlement of the new structure.
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