Tunnel construction stands as a pivotal component in the development of modern infrastructure. With urbanization at its peak and space at a premium, the significance of efficient, safe, and ...

For decades, engineers have searched for underground tunnels by sending signals from the surface downward—an approach that can miss what lies below. By reversing that approach, researchers at the ...

The synthesis authors reviewed relevant literature to capture experience with and effective practices for controlling leaks in tunnels around the world. Sources used for the literature search included ...