Tunnel Boring Machine (TBM) breakthrough refers to the moment when a TBM completes its tunnelling task by breaking through the final section of the tunnel wall. This milestone signifies the successful completion of the primary tunnelling phase, indicating that the excavation process has been efficiently managed and potential geological challenges have been navigated. However, this is not the end of the project, as the mechanical and electrical phases usually begin after this stage. Follow us at

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Tunnel Boring Machine (TBM) construction is a mechanized tunnelling method used for excavating underground tunnels with minimal surface disruption. A TBM is a massive cylindrical machine equipped with a rotating cutterhead that excavates soil or rock while advancing forward. The excavated material is transported out of the tunnel via conveyor belts muck transportation or slurry pipelines, depending on the TBM type. Simultaneously, pre-cast concrete segments are installed along the tunnel walls t

The Tunnel Boring Machine (TBM) features crucial mechanical elements such as main bearings that support the rotating cutterhead, allowing it to excavate efficiently. Erector bearings play a pivotal role in the tunnel lining process, supporting the erector arms responsible for placing concrete segments to form the tunnel walls. Hydraulic pumps power essential functions like the movement of the cutterhead and the operation of erector arms, providing the necessary force for excavation and tunnel li

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