Vertical drilling begins to rescue 41 workers trapped in tunnel
In pics: Vertical drilling begins to rescue 41 trapped workers under the mountain.
Source: indiatimes.com
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Uttarkashi rescue operation may take longer but vertical drilling safer: Experts
Vertical drilling won't require blasting and it won't be against gravity, experts said on the next course of action on Uttarakhand tunnel rescue operation. | Latest News India
Source: hindustantimes.com
Rescue team at Uttarkashi tunnel site prepares for 'vertical drilling' | Watch | Latest News India
An estimated 86 metres of vertical drilling is required to reach the tunnel's crust, after which it will be breached to access the trapped workers. | Latest News India
Source: hindustantimes.com
Rescue Auger drill stuck in rubble, Uttarakhand tunnel rescue may take many more weeks
Officials are now shifting focus to two alternatives — manual drilling through the remaining 10 or 12 metre stretch of the rubble or drilling down 86 metres from above.
Source: dnaindia.com
Uttarakhand tunnel collapse Live: Drilling halted after technical snag in Auger drilling machine
Sections of steel pipes were being inserted through the rubble of the collapsed portion for the workers, trapped for 11 days, to be brought out.
Source: dnaindia.com