Q155
In the Gotthard Base Tunnel, what key monitoring was used to assess excavation safety?
A.
Satellite radar
B.
Fiber optic cables
C.
Tunnel convergence monitoring
AnswerD.
Infrared scanning
Answer: Option C
Solution
Answer: Option C
Solution:
Tunnel convergence monitoring (using extensometers and lasers) helped engineers track tunnel deformation under stress, ensuring safety in deep Alpine rocks.