Q36
In the Delhi Metro project, what was the main geotechnical challenge in Old Delhi?
A.
Hard rock excavation
B.
Sandy soils and groundwater table
AnswerC.
Seismic fault crossings
D.
High elevation variation
Answer: Option B
Solution
Answer: Option B
Solution:
Tunneling beneath Old Delhi involved dealing with loose alluvial soils and a high groundwater table, necessitating closed-face TBMs.