Through water and toxic gases, China digs through new challenging tunnel
China finish 8,287-meter tunnel in Yunnan Province. Xinmin Tunnel railway tunnel. English news Xinhuanet: http://www.xinhuanet.com/english/2020-08/27/c_139320238.htmOperational And Maintenance Features Of The Sv. Tri Kralja Tunnel in Croatia
Paper in English. It is useful in general for tunnel operations work. In English and full text open without paying. Operational And Maintenance Features Of The Sv. Tri Kralja Tunnel Zvonimir Deković Boris Cviljak Igor Pili https://hrcak.srce.hr/en/112293Reply on topic: China builds green rail linking Laos - change tunnel design reduce carbon footprint
http://www.xinhuanet.com/english/2021-04/09/c_139869823.htm
cover tunnel photo by: Matt Brown from London, England / CC BY
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