In the Gotthard Base Tunnel, what was the major geotechnical concern?
A. Gas explosions
B. Glacial till
C. Water ingress through fractured rock
D. Weak soil layers
Answer: Option C
Solution (By Examveda Team)
The Gotthard Base Tunnel encountered significant water ingress through fractured gneiss and schist, requiring high-capacity dewatering systems and grouting.Which geotechnical failure occurred in the 1963 Vajont Dam disaster in Italy?
A. Overtopping of dam
B. Foundation failure
C. Landslide into reservoir
D. Earthquake-induced cracking
What was the main geological issue in the Panama Canal expansion project?
A. Lava flow
B. Marine sediment instability
C. Hard rock tunneling
D. Seismic liquefaction
In the case of the Leaning Tower of Pisa, what caused the leaning?
A. Uneven settlement due to clayey soil
B. Earthquake damage
C. Poor construction material
D. Tectonic movement
Which engineering technique stabilized the Hong Kong slopes after landslide disasters?
A. Tunneling
B. Shotcreting and soil nailing
C. Earth reinforcement
D. Floating raft foundation
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