OPG Niagara Tunnel Project "Big Becky" Tunnel Boring Machine

March 24, 2011 - Big Becky as seen from the other side of the cutter head. The shots are taken from what's known as a "grout tunnel." This 300 metre section was built for safety reasons prior to the start of construction. It was constructed using traditional blasting methods. Since the end of the tunnel is under the river, this tunnel allowed crews to seal any fissures in the rock and prevent leakage.

Big Becky, the world's largest tunnel boring machine is almost finished her 10.2. kilometre journey beneath the City of Niagara Falls. OPG's Niagara Tunnel Project will increase the output of power from Niagara Falls.

Becky will now stop mining until she mines her last few metres at an event to be held in late April.

Other work on the tunnel, including placement of the concrete liner continues.

Category:

Science & Technology

Tags:

• Ontario
• Power
• Generation
• Big
• Becky
• Niagara
• Tunnel
• Project
• Sir
• Adam
• Beck
• Falls

[lazyorc]

Awesome! I want to see more vids of these things in action