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2. Tunnel boring machine - Wikipedia

   en.wikipedia.org/wiki/Tunnel_boring_machine

   A tunnel boring machine (TBM), also known as a "mole" or a "worm", is a machine used to excavate tunnels. Tunnels are excavated through hard rock, wet or dry soil, or sand, each of which requires specialized technology. Tunnel boring machines are an alternative to drilling and blasting (D&B) methods and "hand mining".

3. Bertha (tunnel boring machine) - Wikipedia

   en.wikipedia.org/wiki/Bertha_(tunnel_boring_machine)

   Freighter Fairpartner carrying the disassembled tunnel boring machine into the Port of Seattle in April 2013. Bertha was designed and manufactured by Hitachi Zosen Sakai Works of Osaka, Japan, and was the world's largest earth pressure balance tunnel boring machine, [14] at a cutterhead diameter of 57.5 feet (17.5 m) across.

4. The Boring Company - Wikipedia

   en.wikipedia.org/wiki/The_Boring_Company

   The first boring machine used by TBC was Godot, a conventional tunnel boring machine (TBM) made by Lovat. [26] [27] TBC then designed their own line of machines called Prufrock. [28] Prufrock 1 was unveiled in 2020, and was used mostly for testing.

5. New tunnel boring machine named after environmental ... - AOL

   www.aol.com/tunnel-boring-machine-named...

   A new tunnel boring machine named Elaine is coming to Akron at the end of the year. ... The tunnel will be 6,660 feet long, more than 100 feet below ground, and able to store up to 10.65 million ...

6. There’s trouble below at Elon Musk’s Boring Co. - AOL

   www.aol.com/finance/trouble-below-elon-musk...

   A tunnel boring machine sits at the bottom of a construction site during a media tour at the Las Vegas Convention Center, Friday, Nov. 15, 2019, in Las Vegas. ... Should a Boring Company tunnel ...

7. Herrenknecht - Wikipedia

   en.wikipedia.org/wiki/Herrenknecht

   In May 2020, workers on the Brenner Base Tunnel reportedly set a new record for hard rock tunnel, boring a distance of 61 meters and 4 centimeters within 24 hours, a feat that was achieved using a Herrenknecht TBM. [19] During 2021, the UK's largest TBM was delivered by Herrnknecht for the boring of the Silvertown Tunnel. [20]

8. Elon Musk unveils Boring Company tunnel, promising a ... - AOL

   www.aol.com/news/elon-musk-unveils-boring...

   Engineers and workers have been boring the 1.14-mile-long tunnel underneath one of the main streets in Hawthorne, California. One end of the tunnel starts in a parking lot owned by Elon Musk's ...

9. Martina (tunnel boring machine) - Wikipedia

   en.wikipedia.org/.../Martina_(tunnel_boring_machine)

   The Martina tunnel boring machine (officially named as the S-574. [1]) is a hard rock tunnel boring machine built by Herrenknecht AG.It is the largest hard rock tunnel boring machine in the world and has been used for drilling the Sparvo Tunnel, a part of the larger Variante di Valico project in Italy.