After boring 2072 meters and laying 1381 rings, the Ø6.65m refurbished Robbins NFM slurry tunnel boring machine 1238 ("Tansa 1") operated by Doğuş-Soma JV made a breakthrough at the southern-end of Worli Station of Mumbai Metro Line 2.
It is the first TBM breakthrough for package UGC-03 of Mumbai Metro’s 33.5 km Line-3.
Best pictures of breakthrough:
Nice pics, but what is the TBM brand? It is either Robbins or NFM. Cannot be both?
cover tunnel photo by: Matt Brown from London, England / CC BY
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Breakthrough for TBM Tansa 1 at Mumbai Metro Line-3 at Worli
https://themetrorailguy.com/2020/02/11/tbm-1238-makes-a-breakthrough-for-mumbai-metro-line-3-at-worli/
#India #tunnels #Robbins
TBM 1238 Makes a Breakthrough for Mumbai Metro Line-3 at Worli
themetrorailguy.comOn January 29, tunnel boring machine (TBM) 1238 operated by Doğuş-Soma JV recorded the very first breakthrough for package UGC-03 of Mumbai Metro's 33.5 km Line-3 at the southern-end of Worli Stati