Korea Japan Tunnel has a book now = Korea-Japan Tunnel for a New Era of Eurasia
...;Undersea Tunnel Roundtable' over 4 years. Book has many authors from Korea, Japan, US universities and elsewhere. Book give example of Chunnel Tunnel between France and Eng...Eurotunnel English Channel tunnel geological profile.
It is amazing how the tunnellers followed the chalk layer. Image by: Commander Keane [CC BY-SA 4.0 (https://creativecommons.org/licenses/by-sa/4.0)]Tags: chunnel, channel tunnel, eurotunnel geology
cover tunnel photo by: Matt Brown from London, England / CC BY
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