Who is Arnold Dix, The Tunnelling Expert Behind Uttarkashi Rescue Mission?

Arnold Dix, the tunnelling expert ...we have much to thank for. The Uttarkashi rescue mission was guided by Arnold Dix, who was roped in by the goverment which pulled out all the stops to rescue the 41 workers trapped inside the Silkyara tunnel. Dix, who heads the Geneva-based International Tunnelling and Underground Space Association, is an expert on underground construction.