CIVE 446 Final: CIVE 446 Final 2013 Notes.pdf

• School: McGill University
• Department: Civil Engineering
• Course: CIVE 446
• Professor: William Taylor

Document Summary

For the landside portion, soil was too weak so they stiffened the ground by freezing it. In order to not disturb the trains on the redline, they pulled steel cables the other way of the tunnel sections as they were jacked into the ground underneath. Eliminated any undesired movement in the soils above. Two access tunnels were built on either side of the redline, and were bridged in order to build the highway sections underneath. Injected cement grout into bedrock to strengthen the ground, ten concrete side supports and then roof carved to support the station. There was failure in a seal between the construction site and channel, 70 000 gallons flowed into the site and overwhelmed pumps (flooded) Channel section of the i-90 highway was the most expensive highway per mile. I-93 tunnel: as the roads shifted, the main highway arteries remained open as the 8-10 lane highway was built underneath.