AL Tunnel Practice Questions - Alabama Tunnel Contractor Examination Exam

Why are intermediate jacking stations installed on a long pipe-jack or microtunnel drive?

To replace the need for a reception shaft To increase the cutterhead diameter after launch To ventilate the drive shaft only To distribute jacking force along the pipe string so the capacity of the pipe and the main jacks is not exceeded

Correct Answer:

To distribute jacking force along the pipe string so the capacity of the pipe and the main jacks is not exceeded

Access more questions from this quiz

Continue to AL Tunnel Practice Questions - Alabama Tunnel Contractor Examination Exam for more practice questions and the full quiz experience.

Access More Questions