Xiqinling super long tunnel 西秦岭特长隧道
super-long road tunnel 特长公路隧道
super long road tunnel 特长公路隧道
super-long railway tunnel 特长铁路隧道
Design code and key technical points for main tunnel and parallel heading of East Qinling Super-long Tunnel are introduced.
介绍东秦岭特长隧道工程正洞及平行导坑的设计标准、施工技术要点。
Elastic monolithic track bed was used for East Qinling Super-long Tunnel for its good elasticity, less maintenance and low cost.
新建铁路东秦岭特长隧道采用弹性整体道床轨道基础，该基础弹性好，减少了线路维修工作量，降低费用。
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