In the Tokyo subway system, which challenge led to deformation of tunnel segments?
A. Heat from traffic
B. Soil swelling
C. Differential settlement
D. Acidic groundwater
Answer: Option C
Solution (By Examveda Team)
Differential settlement caused by variation in subsoil strength led to tunnel deformation. Engineers used segmental linings and compensation grouting to address it.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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