shallow tunnel construction method 浅埋暗挖法

caisson tunnel construction method 隧道沉厢施工法

tunnel construction method and technology 隧道施工方法与工艺

cut-and-cover tunnel construction method 隧道开挖施工法

injection method in tunnel construction 注射法隧道施工

core method of tunnel construction 中央导坑式开挖隧道

A Method for Tunnel Construction 隧道施工方法

mining method of tunnel construction 矿山法隧道施工

construction with middle tunnel method 中洞法施工