23.1. Overview of Tunneling and Underground Construction

Try these first

1. 1.

   What is tunneling primarily used for?

   Hint

   Think about the different services we need underground.

2. 2.

   What does TBM stand for?

   Hint

   It's a crucial machine used in modern tunneling.

3. 3.

   What does tunneling refer to?

   • A method of surface mining
   • Excavating underground passages
   • Building bridges

   Hint

   Think about what activities need to take place underneath the surface.

4. 4.

   True or False: TBMs have completely replaced manual excavation methods.

   • True
   • False

   Hint

   Consider if there's a scenario where traditional methods might still be needed.

5. 5.

   Propose a plan for managing the ventilation in a newly constructed tunnel. What steps would you take?

   Hint

   Consider all sources that might impact air quality.

6. 6.

   Discuss how the historical shift from manual excavation to TBMs has influenced worker safety and project efficiency in tunneling.

   Hint

   Think about the advantages of mechanization.