Finland is leading the world when it comes to permanently disposing of spent nuclear fuel in a deep geologic repository. Their Onkalo facility recently completed excavation of the first of five final disposal tunnels, a 1.7 km long tunnel. Ground Engineering magazine has a nice article about the project and the recent milestone, but there is a very cool article by BusinessInsider.com where their science reporter got a tour of the facility and has lots of great photos and videos. If you really want to see how the facility will operate, check out that article. One of the videos is shown below, an animation of how the waste capsules will be stored in vertical shafts extending below the main disposal tunnels.
Golder Associates posted the video below describing some of their work on the York University Subway Tunneling Test Monitoring Project, part of the larger Toronto-York Spadina Subway Extension Project in Toronto, Ontario, Canada. The tunnels […]
The US House of Representatives passed legislation approving a national tunnel inspection program. This of course came about as a result of a fatal accident from 2006 in a tunnel on Boston’s Big Dig project where a concrete ceiling tile fell on a car killing one person. More after the break.
Hitachi Zosen Corporation has been selected by Seattle Tunnel Partners, WSDOT’s joint venture constructing the SR 99 bored tunnel. Hitachi Zosen was the best value manufacturer based on overall technical requirements, support capabilities, price and […]