The first of five mega TBMs has arrived to extend Sydney’s new metro railway deep under the city centre. The TBM arrived at the Marrickville launch site in eight shipping containers and 23 other separate pieces that were too large to fit into a container – including a 100 ton cutter head and a 128 ton section of the round steel tunnelling chamber, each were delivered on truck trailers with 68 wheels.
The 1,100 ton TBM will be assembled and tested before it is launched later this year toward Barangaroo Station. Tunnelling will start before the end of the year. Click here and au/11 for tunnelbuilder archive. Visit https://www.sydneymetro.info. 34/18.
https://www.sydneymetro.info/article/first-mega-borer-arrives-big-dig-under-city-centre
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