太中银铁路上圪崂隧道开挖方法

Excavation Methods of Shanggelao Tunnel in Taizhongyin Railway

针对目前全国高速铁路提速的特点,为了避免列车高速行驶时空气造成的不利影响,隧道断面不断加大,要求不同岩层与合理的选择开挖方法相匹配。结合太中银铁路上圪崂隧道施工实例,阐述了围岩对各种开挖方法的优缺点、技术参数、施工工序及施工注意事项等,对今后同类型隧道工程的施工具有很好的借鉴意义。

In connection with the promotion of the high-speed railway in the whole country at present, in order to avoid the harmful effect about the air obstruction while the train is traveling at a highspeed, the tunnel section needs to enlarge continuously,at the same time,it is demanded that different rock sections must match the reasonable excavation methods. Combined with the example of Taizhongyin Railway Shanggelao Tunnel, the advantages and disadvantages are elaborated about the coffer-dam, technique parameter, construction process, construction note items, etc. And it has successful experiences of other same tunnel construction to go by from now on.