The cutter head carves a smooth round hole through the rock -- the exact shape of a tunnel. Conveyor belts carry the rock shavings through the TBM and out the back of the machine to a dumpster.

Climb through a perfectly carved tunnel above Cusco made directly into solid bedrock with unknown tools#cusco#tunnel#ancienttech 15 House Republicans – a group large enough to turn the tide in ...

In the 1930s, workers bored a 13-mile tunnel beneath Mt. San Jacinto. Here's a look inside the engineering feat that carries ...

This article was originally published on www.videogames.si.com as Star Wars Outlaws Typhon's Rock: How to get through the ...

Atkinson Construction, the city’s main contractor on the project, is building the tunnel through solid rock between 70 and 120 feet under Blackwater Creek using drill-and-blast excavation ...

The crash happened in the westbound tunnel through the rock ridge adjacent to Green River, igniting a fire inside A fire at the scene caused vehicle tires to explode from the heat, according to ...

Moreover, the TBR has been used successfully to tunnel through granite, quartzite and basalt – some of the hardest rock geologies in the world. EarthGrid has now unveiled the successful ...

Cheers greeted a group of 41 workers as they emerged from a collapsed tunnel under the Himalayas ... weekslong rescue operation to drill through rock and debris. The men had been trapped for ...