Coal stratum was encountered during excavation of inclined shaft No. 4 of Wushaoling Tunnel, and gas was released.
乌鞘岭隧道4号斜井施工中突遇煤层，并有瓦斯释放。
F7 fault of Wushaoling tunnel, which lies in lanzhou-wuwei section of Lanxin railway line, is a large regional fault with high geostress.
兰新复线兰武段乌鞘岭隧道F 7断层，为区域性大断层，地应力高。
Severe deformation occurred at the siluric stratum at the ridge of Wushaoling Tunnel, causing splitting of primary lining and even exceeding clearance limit.
乌鞘岭隧道岭脊段志留系地层千枚岩夹板岩地段，施工中发生大变形，初期支护开裂破坏甚至侵限。
Wushaoling railway tunnel is the longest single-track railway tunnel in China and is the key project of Lanxin railway line.
乌鞘岭隧道是兰新线重点控制工程，是国内最长的单线铁路隧道。
Wushaoling railway tunnel is the longest single-track railway tunnel in China and is the key project of Lanxin railway line.
乌鞘岭隧道是兰新线重点控制工程，是国内最长的单线铁路隧道。
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