Q188
In the Banihal-Qazigund railway tunnel, what was the main hazard encountered?
A.
Glacial till
B.
High in-situ stress
C.
Water ingress in fault zones
AnswerD.
Methane release
Answer: Option C
Solution
Answer: Option C
Solution:
The tunnel passed through the Himalayan geology with several fault zones. Water ingress in these fault zones posed continuous hazard during construction.