Here's how the tunnel boring machine, or TBM, works ... The cutter head carves a smooth round hole through the rock -- the exact shape of a tunnel. Conveyor belts carry the rock shavings through ...

expansion achieved a major milestone as its tunnel boring machine reached its destination. Nicknamed "Chessie," the tunnel boring machine broke through the receiving pit on Two Island at Thimble ...

Following its 5-mile drive underneath the capital, HS2 lifted Tunnel Boring Machine (TBM) ‘Sushila’ out of the ground at the ...

A giant Indian-made tunnel boring machine has arrived in Kolkata to continue work on the underground section of the Metro's Purple Line. Despite land issues for Kidderpore station, tunnelling will ...

BENTONG: The two tunnel boring machines (TBM) that will be used to excavate the twin-bore Genting Tunnel portion of the East Coast Rail Link (ECRL) are the biggest of its kind in South-East Asia ...

BENTONG: The two tunnel boring machines (TBMs), which will excavate the twin-bore Genting Tunnel portion of the East Coast Rail Link (ECRL), are the largest of their kind in South-East Asia ...

21 June, 2021 Hiwa-i-te-Rangi’s cutterhead is lowered into a shaft. Now she is about to complete her 16.2-kilometre tunnelling journey under Auckland (Photo/Supplied) Hiwa-i-te-Rangi is about to ...

The tunnel boring machine (TBM) of Chennai Metro Rail Limited (CMRL), which began drilling in Purasawalkam for the Phase II Project has reached Kellys. But it has to wait for the breakthrough for ...