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.
A temporary micropile underpinning foundation system was used to support the abutments of the US 69 bridge over the Kansas River near Kansas City, KS while repairs to the abutment bearing devices were performed. This post is based on my notes from the presentation titled “Emergency Micropile Underpining of the U.S. 69 Truss – Kansas River Bridge” by Jim Brennan, Assistant [State?] Geotechnical Engineer with KDOT. It was the first presentation of the 34th Southwest Geotechnical Engineers Conference in Phoenix this week. Read on for more.
Crux Subsurface is a unique drilling company, getting their start with limited and difficult access geotechnical drilling, but in recent years, they have branched out into micropile foundation design and construction. They frequently work for […]