Q54
The primary reason behind the success of the Jubilee Line Extension (London) in geotechnical terms was:
A.
Blasting techniques
B.
Segmental lining and earth pressure balance TBMs
AnswerC.
Open excavation method
D.
Dewatering systems
Answer: Option B
Solution
Answer: Option B
Solution:
The extension's success was attributed to the use of earth pressure balance TBMs and segmental linings for soft ground tunneling under sensitive structures.