What are the challenges of tunneling?


What are the challenges of tunneling?

Modern challenges in tunnel construction
  • 1) Dusty conditions. With trucks taking rock and spoil away from the tunnel at all hours of the day, waterproofing membrane can become a difficult task because of the airborne particles such as silica dust and diesel particulates. ...
  • 2) Delivery of membrane. ...
  • 3) Membrane damage.


Do tunnels go underwater?

Various methods are used to construct underwater tunnels, including an immersed tube and a submerged floating tunnel. The immersed tube method involves steel tube segments that are positioned in a trench in the sea floor and joined together. The trench is then covered and the water pumped from the tunnel.