The earlier file of 273 metres was set by Tunnel Boring Machine (TBM) ‘Urja’ between Cantonment and Pottery City in Bengaluru, in Could 2022.
| Picture Credit score: File photograph
Namma Metro’s Tunnel Boring Machine (TBM) ‘Tunga’ has set a brand new file. In July, ‘Tunga’ tunnelled by a exceptional 308 metres, surpassing the earlier file of 273 metres set by TBM ‘Urja’ in Could 2022, in line with Bangalore Metro Rail Company Restricted (BMRCL).
Based on BMRCL, “In July 2024, BMRCL achieved its most tunnelling thus far. The TBM ‘Tunga’ accomplished 308 metres of tunnelling between Okay.G. Halli and the Nagawara retrieval shaft. This surpasses the earlier file of 273 metres set by TBM ‘Urja’ between Cantonment and Pottery City in Could 2022.”
BMRCL has deployed 9 tunnel boring machines (TBMs) for development of Namma Metro traces throughout Bengaluru. Seven of those machines — Urja, Varada, Avni, Lavi, Vindhya, Vamika, and Rudra — have efficiently accomplished their duties. The eighth TBM, Tunga, commenced its remaining drive from Okay.G. Halli to Nagavara, protecting 935 metres, on February 2, 2024 for the Pink Line. The ninth TBM, Bhadra, is at the moment engaged on its remaining project, a 939-metre northbound tunnel from Okay.G. Halli to Nagavara.
In July, tunneling operations with TBM Tunga had been halted on account of a sinkhole that appeared on the highway floor in Okay.G. Halli. Officers reported that the sinkhole, measuring roughly 2.5-3 metres in width and three metres in depth, was in all probability attributable to an air pocket. After the sinkhole was repaired, TBM Tunga resumed tunnelling.
Officers anticipate that TBM Tunga will floor at Nagavara, the terminal station of the Pink Line, on October 30. Having commenced its remaining drive on February 3, Tunga has already tunnelled 469 metres of the overall 938-metre goal.
Officers count on Pink Line of Namma Metro to open in 2025.
Progress on this stretch has skilled appreciable delays over time on account of varied components, together with tender cancellations on account of excessive bids, modifications in alignment earlier than remaining approval, challenges with land acquisition, and different obstacles. Officers now count on that your entire stretch could also be accomplished and opened in 2025.
