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https://www.barrons.com/news/india-tunnel-rescue-15d59b58 Diesel Engine For Generator
An auger machine drilled 47m before being damaged by metal obstacles. Final meters are being dug by hand
An 89m vertical shaft and a 3m horizontal tunnel is being drilled from the top
Through the horizontal shaft, the workers could be pulled out using a wheeled stretcher along the 900mm wide pipe
If the vertical shaft is drilled successfully, the workers will be lifted out in a bucket-like apparatus
Rescue teams have been attempting to break through to the section of tunnel where 41 workers have been trapped since November 12. Two of the locations they are drilling will require different extraction methods
Note: graphic is a schematic
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