长大隧道无斜井洞内开辟第三工作面经验探讨

Discussion on the Experience of Opening up a Third Working Face in a No-Inclined Well Hole in a Long Tunnel

以斜井进正洞挑顶施工技术为基础,结合格鲁吉亚现代化铁路项目9#隧道由右洞洞内通过横通道进入左洞的施工案例,从进度、费用以及通风排水等方面进行经验总结,供今后类似工程参考。

Based on the construction technology of the inclined shaft entering the main tunnel and the construction case of No.9 tunnel entering the left tunnel from the right tunnel through the cross passage in the modern railway project of Georgia,this paper summarizes the experience from the aspects of progress,cost,ventilation and drainage,so as to provide reference for similar projects in the future.