I think the name of the tunnel is Ramban tunnel. It was under construction with drill & blast.
https://www.mbtmag.com/global/news/22248913/10-workers-found-dead-in-tunnel-collapse
cover tunnel photo by: Matt Brown from London, England / CC BY
Copyright 2019-2024 TunnelContact.com
https://www.mbtmag.com/global/news/22248913/10-workers-found-dead-in-tunnel-collapse
10 Workers Found Dead in Tunnel Collapse
www.mbtmag.comThe tunnel is part of a mountainous highway tunnel system that was under construction.