7[1]Don.Rose.Conceptual layouts for very long tunnels[J].Underground Space,1985,9(3).
8[5]M.Matsuo.An overview of the Seikan Tunnel project[J].Tunnelling and Underground Space Technology,1986(4).
9[6]Zuber,Peter.The Alp Transit Scheme:New Railway Lines in Base Tunnels under the Swiss Alps[J].Tunnelling and Underground Space Technology,1997,12(3).
