INSIGHT | LIFTING, LOGISTICS


Right:


TBM lift at Sydney Metro’s Barangaroo station PHOTO CREDIT:


JAMES D MORGAN, GETTY


Right:


Marr’s M2480D lifting a cutterhead during TBM assembly at Sydney Metro’s The Bays station PHOTO CREDIT: SYDNEY METRO


The solution we developed – using an M2480D and


M1280D heavy lift luffing tower crane sitting on purpose- designed foundations in and outside the station boxes – provided lifting capacity across the project (including the TBM components); it took up less than 90 per cent of valuable space than the other, initially proposed method. It also provided the option to build with precast beams, allowing for increased modularisation and fewer lifts.


28 | November 2024


A SIMPLER APPROACH TO TBM ACTIVITIES The traditional approach to installing and removing TBMs places large crawler cranes outside the station box. This tends to be a very complex lifting operation,


involving a number of logistical and safety challenges, particularly when working in high density urban environments like metro projects.


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