The Tokyo Bay Aqua-Line tunnel used which construction method to combat high water pressure?
A. Earth pressure balance TBM
B. Drill and blast
C. Cut-and-cover
D. Jacked box tunneling
Answer: Option A
Solution (By Examveda Team)
Earth Pressure Balance TBMs were employed to maintain face stability and counteract the high water pressure beneath Tokyo Bay.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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