International Projects Collapsing Alpine Railroad Tunnel Forces German Contractor To Bury TBM Peter Reina August 29, 2017 No Comments A section of the international Rhine Valley Railroad started sinking in mid-August as the 10.9-m-dia, 93-m-long bentonite TBM worked a few meters below ground in soil that had been supposedly stabilized by freezing.Read More
New Hudson River Tunnel Plan Faces Rising Costs, Questionable Support Jim Parsons July 12, 2017 No Comments While plans for a Hudson River replacement rail tunnel remain unclear, one thing is certain: The cost is climbing.Read More
