论文部分内容阅读
截至1997年末,在铁道部管理的标准轨距铁路和窄轨铁路上,正式交付运营的隧道已有5200座,总长度达2457.869公里。 从1997年末全路正式运营隧道的数量统计资料可看出: ——在全路总数5200座隧道中,有96％以上位于标准轨距铁路上,计5004座,总长度2435公里。其中83％以上为单线隧道,计
As of the end of 1997, 5,200 tunnels were officially delivered and operated with a total length of 2457.869 kilometers on standard gauge railways and narrow gauge railways managed by the Ministry of Railways. From the statistics of the number of formally operating tunnels at the end of 1997, we can see that: - Over 96% of the total 5200 tunnels on the whole road are located on the standard gauge railway with a total number of 5004 and a total length of 2,435 km. More than 83% of them are single-lane tunnels