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

This massive tunnel-boring machine is engineered to cut through solid rock and underwater terrain with unparalleled precision, leaving smooth, flawless tunnel walls in its wake. From the size and ...

Approximately ten miles away, as the seagull flies, the 308-ft-long earth pressure balance machine Chessie mined more than 6,300 ft for the Chesapeake Bay Bridge-Tunnel’s new parallel tube at ...

At about 16 metres in diameter, the tunnel boring machines for the $7 billion Western Harbour Tunnel will be the largest in the Southern Hemisphere. The twin three-lane wide motorway tunnels will ...

HDR and Mott MacDonald are the project’s lead designers. Mary, the tunnel boring machine, arrived on the project’s existing artificial north island and was relaunched back to the south island.

which will serve as a path for a tunnel boring machine. That phase is expected to wrap up in 2027, followed by work on the New Jersey side of the tunnel. Once completed in 2035, the new tunnel is ...

HRBT project workers excavated a 65-foot-deep receiving pit on North Island where tunnel boring machine Mary will make a 180-degree U-turn after completing the first tunnel. Photo courtesy Virginia ...

[Photo provided to chinadaily.com.cn] The construction of the Tianjin-Weifang High-Speed Railway reached a historic milestone on Monday, as the super-large diameter tunnel boring machine Jincheng ...

The second Encore tunnel won’t be dug with one of Boring Company’s boring machines; it will be done manually. “Not pick and shovel, but there’s no place to recover the boring machine ...

Grading and excavation also could disturb or destroy archaeological sites. The tunnel-boring machine could cause vibrations that could shift the area's geology. Soil in the construction area could ...

Direct, detrimental impacts to groundwater would occur for the duration of shaft and portal construction, expected to last six and eight months, respectively, and while the tunnel boring machine ...