Examveda

In the Niagara Tunnel Project, what was a geotechnical challenge?

A. Frozen soil

B. Highly fractured Queenston shale

C. Glacial erratics

D. Artesian pressure

Answer: Option B

Solution (By Examveda Team)

The tunnel passed through highly fractured Queenston shale, which is known to swell and weaken on exposure to water, demanding fast excavation and lining.

Join The Discussion

Related Questions on Case Studies and Applied Geological Engineering Projects