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.
[Updated Thursday May 29, 2009 – 1:00 PM PDT] Added a photo of the AIS Kaiser S2 excavator (spider excavator), and added photos of the Devil’s Slide debris dump where they have put the landslide material removed and the material from the tunnel excavation. [/Update]
Grant Wilcox, Geology Branch Chief with CALTRANS Office of Geotechnical Design West gave a presentation on the Devil’s Slide repair along PCH Highway 1 at the Southwest Geotechnical Engineer’s Conference on May 12 in Phoenix. I’ve posted about the project here before. When I saw Mr. Wilcox, I knew he looked familiar but I couldn’t figure out why. At the beginning of his presentation he made light of his being on You-Tube…then it clicked! He gave a nice overview of the history of the failures, the geology, and the tunnel project. What follows are a few quick tidbits from his talk based on my notes. (Photo via Caltrans site).
Hawthorne, NJ (December 1, 2012): David B. Coleman received one of the Deep Foundations Institute’s (DFI) highest honors, the Distinguished Service Award, in October during the DFI’s 37th Annual Conference in Houston. He was the 32nd recipient of the award, designated for individuals or companies chosen by their peers for exceptionally valuable contributions to the deep foundations industry.
[Editor] Read on for the rest of the press release from DFI. [/Editor]
This has to be one of the most complex geotechnical engineering problems I’ve heard of for a building, if not for any kind of project. For starters, beneath the proposed 10-story office building referred to as Cannon Place lies the Cannon Street Train Station built in 1868. Also beneath the site are walls and foundations of a Roman Governor’s palace. In order to accommodate these features, the building has 21-m cantilevers at each end, with the load bearing happening over two groupings of columns at the 1/3 points. In section it looks quite like a 3-span bridge…without the abutments and stacked 10-stories tall! More after the break. (Images by New Civil Engineer) […]