The study of disc cutter wear in tunnel boring machines (TBMs) is fundamental to optimising both the economic and operational performance of subterranean construction projects.

The global tunnel boring machine market size was worth USD 5,995 million in 2021. It is estimated to reach USD 10,300 million by 2030, growing at a CAGR of 6.2% during the forecast period (2022 ...

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.

Here's how the tunnel boring machine, or TBM, works: As the 200-ton TBM moves forward, a round cutter head studded with titanium teeth grinds into the tunnel face and splits large chunks off the rock.

Currently, tunnel boring machines face challenges ... smaller equipment can be used for advanced treatment through the machine's circular disc cutter.

The tunnel boring machine known as Chessie got back to work on April 8, days before the 60th anniversary of the bridge-tunnel’s opening on April 15, 1964.

Komatsu, through its subsidiary, Komatsu Cummins Chile, has agreed with Codelco, a major state-owned mining company in Chile, to collaborate on trialing a new tunnel excavation method using Komatsu's ...

The tunnel boring machine reached its destiniation as part of the Chesapeake Bay Bridge-Tunnel expansion project. ... It was roughly 10 feet in length and caused damage to the machine cutter head.