China Tunnelling Technology: Periodic: Modern Tunnel Technology
China academic periodic Modern Tunnelling Technology have many science article on tunnel technology. Please English abstracts for last issue. http://www.xdsdjs.com/EN/volumn/current.shtmlChina’s Sichuan-Tibet rail project at full steam – with fans and ice as machines melt, workers wilt
Line has 70 tunnels, One tunnel over 40km long https://www.scmp.com/news/china/science/article/3156253/chinas-sichuan-tibet-rail-project-full-steam-fans-and-ice
cover tunnel photo by: Matt Brown from London, England / CC BY
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