German-based TBM manufacturer is progressing on a challenging dig under the Elbe River estuary, and expects further tunnel ...

The name of the tunnel boring machine, Chessie, came from then-sixth grader Grace Bentley of Nandua Middle School. Chessie removed about 500,000 cubic yards of soil and installed about 10,000 ...

Tunnel boring machines (TBMs) prefer to chew rocks, not mud. Besides, they can't support the wet ground, so the tunnel walls are collapsing! TBMs work much better in rock tunnels. Try this ...

The tunnel boring machine can slice through sand with ease, but there's one problem: the whole tunnel will collapse if you don't figure out a way to support the loose sand. Try again!

Instead, a remote-controlled boring machine digs through earth ... On the front of a machine is a cutting disk to grind through the soil that can be swapped out to cut through different types ...

China has completed the production of its largest tunnel-boring machine (TBM), measuring 16. ... due to underground water ...