Recent advancements in rock cutting and tunnel boring machine (TBM) performance have underscored the importance of optimising cutter design, operational parameters and understanding rock fracture ...

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 ...

Tunnel boring machines (TBMs) are very picky about the rocks they chew through. This is why geologists must monitor the rock at the head of every tunnel. On good days, TBMs can bore through rock ...

By Brenden Bobby Reader Columnist We’ve explored the exciting world of boring machines a few times over the past few months, most recently talking about the impressive tunnel systems drilled through ...

The $41.1 million Tonnelle Avenue project included relocating utilities and building an overpass to allow the trains to pass underneath Tonnelle.

Once completed, the Tonnelle Avenue site will have one of the shafts to launch two tunnel boring machines that will drill through rock in the Palisades. A separate shaft is being built at the ...

A giant machine used to bore a tunnel for the new HS2 high-speed railway line is to be dismantled so that it can be ...