Due to corruption and collusion between companies, hospitals and officials, majority of industrial accidents fail to gain public attention, until of course
The weekslong effort to save 41 workers trapped in a collapsed Himalayan tunnel has entered a perilous new phase, with rescuers attempting to drill downward through unstable mountain terrain after a safer route faltered at the final stage.
If you are constructing the tunnel in the Himalayan region, then if you have constructed 10 metres of tunnel, first you will have to do proper treatment and ensure the stability of this constructed structure. You cannot just throw concrete on the ceiling and sidewall of the tunnel for permanent stability. That will not work.