Q194
The East-West Metro Tunnel under the Hooghly river was executed using:
A.
Cut-and-cover method
B.
Tunnel boring machines (TBM)
AnswerC.
Drilled shaft tunneling
D.
Immersed tube method
Answer: Option B
Solution
Answer: Option B
Solution:
The East-West Metro in Kolkata used a tunnel boring machine (TBM) to excavate the river crossing beneath the Hooghly. This method minimized surface disturbance and managed soft ground.