Brief by Shorts91 Newsdesk / 04:44pm on 26 Nov 2023,Sunday India
On the 15th day of the Uttarakhand tunnel collapse rescue mission, vertical drilling was initiated, progressing nearly 20 meters on its first day. The American auger machine, previously hindered by a metal grinder, is beyond repair, prompting the shift to vertical drilling. Approximately 10% of the tunnel rubble remains, and experts estimate a 10-12 meter drilling requirement. If vertical efforts prove futile, manual drilling becomes the last resort, though less efficient, requiring an additional 18-24 hours. The Indian Army's engineer regiment stands ready for manual drilling at the Silkyara tunnel site.
