And a train was actually hit! Fortunately it was stationary on the tracks, but it crushed the side panel of the driver’s carriage. Neither the driver nor any passengers were injured in the incident. The drill rig was drilling to install ground source heating or geothermal heating for a hotel when at a depth of 20 to 25 meters (65 to 82-ft), the drillers noticed that they lost resistance when they punched through the subway tunnel. Upon withdrawing the drill stem, they were missing the bottom 2.5-m according to a local police official. Story at The Local. (Photo of N.Y. Subway from runnx)
Project Related
Crossrail – the engineering geology
For those outside the UK, the Crossrail project is a mega-project upgrade to the London metro area’s subway system. The tunneling portion of the project will consist of 21-km of twin-bore tunnels excavated by eight […]
Project Related
Norway wants to build world’s first tunnel for ships
The Norwegian government wants to build a tunnel linking two fjords that would be large enough to pass 16,000 tonne cargo and passenger ships. The treacherous stretch of waterway has seen 46 accidents and 33 […]
News
Ft. Collins Hiking/Biking Tunnel Beneath BNSF Railroad
The City of Fort Collins (Colorado) recently completed construction of a tunnel underneath BNSF Railway tracks to connect more than 30 miles of trails. The prospect of tunneling under an active rail line is a […]
Comments are closed.
It can only happen if the co. is highly unprofessional.
thnks
nk agarwal
Tunnelling Engineering 🙂