Tunneling and Submersed Tunnels
For projects that require a pathway beneath a body of water, such as underwater roadways or pipelines, tunneling is often the chosen technique.
In this method, pre-fabricated sections of the tunnel are submerged and connected underwater. These sections are then sealed and positioned within a dredged trench on the seabed.
For longer and more complex tunnels, tunnel boring machines (TBMs) are employed. These massive machines drill through rock and soil, creating a tunnel while simultaneously lining the walls to prevent collapse.