成昆铁路丙满隧道超前及初期支护中的关键施工方法

The Key Construction Method of Advance and Initial Support of Bingman Tunnel on Chengdu Kunming Railway

以正在施工的成昆铁路丙满隧道采用的超前及初期支护施工方案为例,讲述丙满隧道在超前及初期支护中关键环节的施工方法以及施工要点,丙满隧道的施工采用的正是上述方法,取得较好的效果,在施工中严格按照上述方法施工,工程进展比较顺利,该施工关键方法可以为同类隧道支护做参考。

Taking the advance and initial supporting construction project of the ongoing construction of the Bingman Tunnel on Chengdu Kunming Railway as an example, this paper describes the construction method and key points of the crucial links in the advance and initial support of Bingman tunnel. This construction method was strictly used in the construction and has obtained good effect, which can be used as reference for similar tunnel constructions.