L&T’s TBM Lavi Starts Tunneling for Bangalore Metro at Shivajinagar
Engineers from Larsen & Toubro last week quietly commissioned Tunnel Boring Machine Lavi (DZ672) from Shivajinagar Station for building tunnels on the 21.386 km Pink Line (Reach 6) of the 73.92 km Bangalore Metro Phase 2 project.
Like TBM Avni which is building the parallel tunnel towards MG Road Station, this TBM was commissioned without any major celebratory launch event or even a press release by the Bangalore Metro Rail Corporation Ltd (BMRCL).
For the 2.755 km package RT-02, Lavi will first build the 1089.263m down-line tunnel towards MG Road Station and then the 1098.655m tunnel towards Rashtriya Military School Station.
This Ø6.67m slurry machine (DZ671) was manufactured by China Railway Construction Heavy Industry Co., Ltd. (CRCHI) and lowered into the Shivajinagar Station’s southern-end in June 2020.
With this, Lavi has now become the fourth machine, after TBM Urja (DZ670), TBM Avni (DZ669) and TBM Vindhya (DZ671) to start excavation works on the Pink Line’s 13.885 km underground section.
A total of 9 TBMs will be deployed by Afcons (3), Larsen & Toubro (4) and ITD Cementation (2). Here’s a status with figures displayed from BMRCL’s December 2020 newsletter. The upcoming January newsletter should give a more current status of tunneling progress.
| TBM | Status |
| S-1259 | Parts are at Dairy Circle Ramp Site |
| S-1260 | Parts are at Dairy Circle Ramp Site |
| S-1264 | Lowering of parts has started at RMS Shaft |
| DZ669 (Avni) | Commissioned in Sept 2020 (238/1089m) |
| DZ670 (Urja) | Commissioned in July 2020 (235/860m) |
| DZ671 (Vindhya) | Commissioned in October 2020 (150/860m) |
| DZ672 (Lavi) | Commissioned in February 2021 (this post!) |
| S-839B (Tunga) | Factory acceptance tests completed Jan 27-29 |
| S-840B (Bhadra) | Factory acceptance tests completed Jan 27-29 |
For more updates, check out my Home Page!
– TMRG
All the best 👍
We need speed. This line especially in banerghatta road is loosing time and money every day. This should be opened in parts at the earliest.
All the best. Yes, we need speed. The work should be completed in time.
All the best
Congratulations and all the best
Vi have Requriment Job for Qulity control engineer
Im civil engineer with 1 year of experience in construction field . Can i have any job vacancy please let me know sir
Best Wishes for Safe & Fast Completion /
They should complete with the right timelines to make life’s of people easier and make the traffic light on the roads.