World's largest tunneling machine digs in
World's largest tunneling machine digs in
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Bertha breaks through: World's largest boring machine completes tunnel under Seattle
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The largest tunnel boring machine (TBM) in the world finished drilling underneath Seattle
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Meet the world's largest tunnel boring machine: Bertha! 🔥 A giant investment of 80 million articles, it is a real electric wonder with a length of 99 meters, a weight of 6,100 tons and a cutting head of 17.5 meters. 🚀 With 600 cutting discs, he completed the Alaskan Way Viaduct tunnel project in just 14 months and more than 5,000 people participated in its presentation. Follow us for more information about such huge machines! #EngineeringWonders #Bertha #TunnelingMachine #machine #tbm #giantma
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