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Mega TBM cutterhead in manufacture in China
Mega TBM cutterhead in manufacture in China
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From the Editor's Desk - 21 Sep 2017
The age of mega TBMs of more than 14m in diameter, is advancing without hesitation. As TBM Bertha is disassembled in Seattle, two machines of 16m plus are needed for Melbourne, Australia and a slurry TBM of 15m plus are being fabricated for a project in China. These expand the TunnelTalk Table of the world's mega TBMs and add to the hundreds of TBMs of less than 14m diameter manufactured each year.
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VIDEO REPORTING - Mega TBM operations

TBM Bertha final breakthrough

Tour of record setting TBM

Bertha’s bored alignment

Waterview, New Zealand

Rectangular box-jacking TBM

Follo Line TBMs, Norway

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