Chicago hosts this years' North American Tunneling Conference; please follow this link to the home page of the Society for Mining, Metallurgy and Exploration's homepage. The conference program can be downloaded here.
Together with Hatch Mott MacDonald, DSC presents the construction progress at Sound Transit's Beacon Hill Station. The TBM for the running tunnels was launched at the beginning of this year and is making good progress. The two slurry wall shafts for the station, whith a diameter of 50' and 35', have been excavated and the construction of the SEM station tunnels is presently under way.
Please follow this link to view the paper.