云桂铁路对门山隧道斜井挑顶进洞技术方案

摘要

结合Ⅰ级双线铁路大断面隧道的特点,介绍了云桂铁路对门山隧道掘进由斜井安全进入正洞的施工方法,旨在能够作为类似隧道项目施工的参考,或对类似隧道的挑顶进洞施工作业起到一些指导作用.%Based on the characteristics of GradeⅠdouble-track railway with large section, this paper introduces the construction method of inclined shaft into main tunnel in Yun-Gui railway Duimenshan tunnel, so as to be able to serve as a reference for similar tunnel construction.