L&T has set a world record by excavating 790 metres in 31 days using the Shiv tunnel boring machine, as part of the 125-km ...

Tunnel boring machines have been in operation for over 200 years and they operate on the same basic principles today as they did back then. advertisement. Sciencing.

Then the tunnel-boring machine named after the former first lady freshened up a bit and wormed back underground, ready to dig a massive hole beneath the Anacostia River toward the doorstep of ...

The Northolt Tunnel is HS2's second longest, stretching between West Ruislip and the new railway interchange at Old Oak ...

After launching in 2013, the world's largest tunnel-boring machine has less than 220 feet to go before finishing its 1.7-mile trip. Here's a look back on the tumultuous dig that's ...

Tunnel-boring machine "Chris" was lowered underground Thursday. The behemoth will spend the next two and a half years slowly chewing through more than 5 miles of earth underneath Northeast D.C.

Dublin, April 06, 2021 (GLOBE NEWSWIRE) -- The "Tunnel Boring Machine Market Forecast to 2027 - COVID-19 Impact and Global Analysis by Type, Geology, and End-User" report has been added to ...

Last week, a tunnel-boring machine used by L.A. Metro to carve out 2 miles of earth for the new Crenshaw/LAX line was removed from the future Leimert Park Station in South Los Angeles in three pieces.

To understand how a tunnel-boring machine works, think of an earthworm. The worm eats. It pushes forward. It expels. This is Bertha in a nutshell. As her 886-ton cutterhead revolves at about one ...

SEATTLE — The world’s largest tunnel-boring machine broke through a concrete wall beneath Seattle on Tuesday to reach the end of its long, troubled journey, a milestone in a multibillion-doll… ...

DC Water officials said Lady Bird — a huge tunnel-boring machine that is longer than a football field and weighs 1,300 tons — has dug 4½ miles underground over the last two years in the ...