Tunnel boring machine - Wikipedia

The slurry-type shield tunneling machine excavates ground while preventing the face from collapsing by using the pressure of circulated muddy water in the cutter chamber.

Tunnelling shield - Wikipedia

Shield tunneling machines(TBM) have advantages of high efficiency construction, better safety and reliability characteristics. - NHI Group

Shield tunneling machines | Products | Hitachi Zosen ...

Single Shield; Crossover Machines; ... Tunnel Boring Machines Products. TBMs ... we know what it takes to manufacture the most efficient tunneling machines.

Shield Tunneling Machine - TBM - NHI Group

A naming competition for the world's largest shield tunneling machine was organized by the ... supplied by Hitachi Zosen to Seattle ... diameter machines, ...

Tunnel Boring Machines | The Robbins Company

A shield tunneling machine comprises a shield body provided with a tubular head portion and a tubular tail portion disposed behind the head portion. The head portion and tail portion are interconnected by a plurality of thrusting jacks for moving both portions to and away from each other.

The World's Largest EPB Shield Tunneling Machine | …

Shield Tunneling Machines – KAMY Roadheader. The slurry-type shield tunneling machine excavates ground while preventing ... such as tunneling under the ...