Q30
For underground metro construction in urban areas, why is geotechnical borehole logging essential?
A.
To locate electrical lines
B.
To test air quality
C.
To understand subsoil layers and groundwater
AnswerD.
To evaluate traffic impact
Answer: Option C
Solution
Answer: Option C
Solution:
Borehole logging reveals soil profile, water table, and rock properties critical for tunnel design, safety, and dewatering strategy.