Which hazard was encountered during excavation of the Brenner Base Tunnel?
A. CO? emissions
B. Water inrush from karst
C. Ice pockets
D. Swelling rock
Answer: Option D
Solution (By Examveda Team)
Swelling rock such as anhydrite was encountered. Upon contact with water, it expanded, exerting pressure on the tunnel lining. Countermeasures included reinforced linings and waterproofing.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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