Maharashtra’s Chief Minister Devendra Fadnavis today evening joined officials from the Mumbai Metro Rail Corporation Limited and CEC-ITD Cem-TPL JV to celebrate the lowering of TBM S1073, the 33.5 km Line-3’s 1st tunnel boring machine, into the 25m deep Nayanagar Shaft in Mahim.
The 110m long Herrenknecht earth pressure balance machine passed factory acceptance testing in China in June and arrived disassembled at Mumbai Port in early September. Workers lowered its shields followed by its multi-colored cutterhead today, and will lower its backup tail over the coming weeks as weather permits.
After assembly is completed, S1073 on its first assignment will excavate and build the 2484m long up-line tunnel towards Dadar Station, through Shitladevi Station, as part of the 6.081 km package UGC-04 between Worli-Dharavi. In the coming months, it’ll be joined by its sister machine TBM S1074 for building the parallel down-line tunnel.
Images from the event –
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