The latest issue of Deep Foundations Magazine is available online from the Deep Foundations Institute (DFI). The September/October 2017 issue cover story is about the 2017 OPA Winning Project – The Expansion and Preservation of the Andrew Mellon Building in Washington D.C. This project involved adding a basement beneath the existing foundations of the National Historic Landmark. Berkel & Company Contractors designed micropiles to serve as the shoring system and the permanent deep foundation elements.
The Deep Foundations Institute (DFI) Educational Trust is accepting applications from civil engineering students (from select schools) interested in a career in the deep foundations industry. The $5,000 Michael L. Condon Civil Engineering Scholarship is open […]
PITTSBURGH, PA – Nicholson Construction recently completed emergency repair work to an unstable pier supporting a bridge on INDOT’s Interstate 65. These repairs enabled a 37-mile section of the highway’s northbound lanes to be reopened after a four-week closure.
The highway was in the process of being rehabilitated and widened when the pier was damaged by steel piles driven into the water tight ground below it. The pier began to settle and eventually rotated ten inches.
Nicholson developed a design-build solution that used micropiles to transfer the loads to more stable soils and low-mobility grouting to fill voids and densify the upper subsurface layer.
[Editor] Read on to hear more about Nicholson’s fix of this unstable bridge pier. [/Editor]