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
Taking Changjiang tunnel project in Shanghai as the background, this presentation systematically describes critical techniques of structure design on super large, extra long tunnel.
本报告以上海长江隧道为工程背景，系统地阐述了超大特长隧道结构设计的关键技术。
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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