铁路隧道辅助导坑与正洞交叉处三角区施工技术

随着铁路建设的发展,长大山岭隧道在铁路建设中的比例越来越大,铁路建设中的长大隧道往往采用增设辅助导坑的方法以减小施工难度,加快施工进度,因此辅助导坑与正洞交叉处三角区的处理成为长大隧道施工中不可避免的课题,文章介绍了拉日铁路色麦村隧道辅助坑道与正洞交叉口三角区施工技术,为以后的类似工程提供设计和施工经验参考。

Construction technology of triangle area between service gallery and main tunnel of railway

With the development of railway construction,the proportion of the long mountain tunnels is becoming larger and larger.In railway construction,the method of adding the service gallery is usually used for reducing the difficulties of construction and speeding up the construction progress,so the treatment of the triangle area between service gallery and main tunnel of railway is becoming an inevitable issue.This article introduced construction technology of triangle areas in SeMai village tunnel of Lhasa-Shigatse railway that can provide design and construction experience for similar projects in the future.