What was the main cause of tunnel face collapse in the Heathrow Express Rail Link project?
A. Water ingress into clay
B. Lack of grouting
C. Excavation in London clay without support
D. Overcutting
Answer: Option C
Solution (By Examveda Team)
The collapse occurred due to unsupported excavation in London clay, leading to loss of face stability. It emphasized the importance of real-time monitoring and pre-support measures.This Question Belongs to Geological Engineering >> Case Studies And Applied Geological Engineering Projects
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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