Q58
Which of the following is an example of proactive geotechnical monitoring in large-scale tunneling?
A.
GPR survey before excavation
B.
Preloading of soil
C.
Use of surface tiltmeters and extensometers
AnswerD.
Use of blasting in hard rock
Answer: Option C
Solution
Answer: Option C
Solution:
Surface tiltmeters and extensometers are widely used in real-time monitoring of ground movement during tunneling to prevent failures.