PDF(2912 KB)
Discussion on the Method of Transformation and Extension of Existing Civil Air Defence Tunnel into Metro Tunnel
Wei Feng, Zhang Jinyi
Chinese Journal of Underground Space and Engineering ›› 2015, Vol. 11 ›› Issue (3) : 551-556.
PDF(2912 KB)
PDF(2912 KB)
Discussion on the Method of Transformation and Extension of Existing Civil Air Defence Tunnel into Metro Tunnel
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