Q169
The main geological concern in the construction of the Gotthard Base Tunnel was:
A.
Volcanic intrusions
B.
Overburden heat
C.
Faulted zones
AnswerD.
Sinkholes
Answer: Option C
Solution
Answer: Option C
Solution:
The Gotthard Base Tunnel passed through several faulted zones with fractured and water-bearing rocks. These required real-time monitoring, reinforced linings, and drainage systems.