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Ad van Zwieten lived on the Vijzelgracht until his house was declared unfit for habitation, after subsidences caused by the metro construction work. Photo Maurice Boyer, nrc.nl
Failures

Amsterdam Looking at Cologne Tunnel Collapse – Project Similarities?

April 8, 2009 rockman Failures Comments Off on Amsterdam Looking at Cologne Tunnel Collapse – Project Similarities?

City officials and residents in Amsterdam, Netherlands are looking at the recent Cologne tunnel collapse and wondering if the construction of their fourth metro line could have similar problems. Although the tunnels themselves have not […]

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Project Related

Video: Drilled shaft construction on Arizona DOT Project

November 4, 2011 rockman Project Related Comments Off on Video: Drilled shaft construction on Arizona DOT Project

ADOT put together a great little video embedded below that shows the construction of a drilled shaft foundation, or caisson as they are also known, for a bridge on the Loop 303 project in Surprise, […]

Drill rig at Atlantic Yards project showers pedestrians with debris
Failures

Drill Rig Showers Debris on Pedestrians, Injuring Two in NY

July 7, 2011 rockman Failures Comments Off on Drill Rig Showers Debris on Pedestrians, Injuring Two in NY

A drill rig had some type of failure or malfunction in Brooklyn NY, and showered pedestrians with golf ball sized rocks, earth and debris. There are few details on the incident or the type ow […]