In the Gotthard Base Tunnel, what major geological obstacle was encountered?
A. Aquifers in limestone
B. High geothermal gradients
C. Weak unconsolidated sand
D. Reactive clay minerals
Answer: Option B
Solution (By Examveda Team)
The Gotthard Base Tunnel in Switzerland, the world�s longest rail tunnel, faced high geothermal gradients exceeding 40�C, requiring special cooling and ventilation systems.This Question Belongs to Geological Engineering >> Case Studies And Applied Geological Engineering Projects
Join The Discussion