Mumbai Metro’s Nayanagar Shaft Gets Ready for 1st TBM
After finishing excavation, workers from the CEC-ITD Cem-TPL JV have lowered a cradle into Mahim’s Nayanagar Shaft in order to lower, assemble and commission TBM S1073 – the first Tunnel Boring Machine for Mumbai Metro’s 33.5 km Line-3.
TBM S1073, a 110m long Herrenknecht earth pressure balance machine, passed factory acceptance testing in China in June, arrived disassembled at Mumbai Port in early September, and has since been lying adjacent to the 25 m deep shaft waiting to get lowered into it. Maharashtra’s Chief Minister Devendra Fadnavis is tentatively scheduled to witness the TBM’s assembly on September 21, but actual tunneling work (ring building activity) towards Shitladevi Station, part of the 6.081 km package UGC-04 between Worli-Dharavi, will commence only in October.
Location of UGC-04’s Nayanagar Shaft – view Mumbai Metro map & information
Cradle for TBM
S1073’s front & mid shields
For more updates, check out the Mumbai section of The Metro Rail Guy!
– TMRG
Can you share the site’s coordinates? My son would love to see it.
19.045227, 72.843148 – view satellite imagery
A site visit would require MMRC’s permission, but contractors can always make exceptions at their site. All the best.
it s just in front of st javier college
This must be a midshaft because no diaphragm wall’s have been built,shaft built by secant piling!
Indeed a midshaft
there is no DWALL in entire 33.5 km project, Even in Stations. RCC walls/Box shall be constructed . Secant piles are temporary
All the best…. You contractors Rock
Which company crane are they using for unloading
Top left corner says A.P. Cranes. They’ve delivered cranes all over Delhi.
What are the tall steel towers and cross-beams for?
For the rolling gantry crane to move around the shaft. In the last pic, you can see one of its tracks in the bottom-right corner.
How many TBMs are being used for the entire line? Is this the first TBM to be lowered?
17 TBMs will be used – see a list here
9 TBMs have completed FAT – see a running list here
Yep, this will be the 1st get lowered.