摘要
渝黔铁路天坪隧道原设计施工开挖工法为台阶法,为提高长大隧道施工进度,缩短工期,保证施工质量,降低安全风险,需兼用现代机械化配套施工,需对原设计工法进行优化,并形成了一种新的大上半断面工法。实践证明:新工法可行,且成功提高了天坪隧道施工的综合效益。
In the construction of the Tianping tunnel of YuQian railway in Chongqing,the design method was a step method. To improve the construction progress of long and large tunnels,shorten the construction period,ensure construction quality and reduce safety risks,the engineering method is optimized to form a new large-and-a-half-section construction method. The practice has proved that the construction of the new construction method is feasible and has successfully improved the overall benefits of the Tianping tunnel construction.
作者
陈晓成
房玉中
杨怀强
陈阳军
CHEN Xiaocheng1;FANG Yuzhong1;YANG Huaiqiang1;CHEN Yangjun2
出处
《公路交通技术》
2018年第3期90-95,共6页
Technology of Highway and Transport
基金
中铁隧道集团一处有限公司科技创新计划项目(201708)
关键词
隧道
大上半断面
软弱围岩
快速施工
tunnel
large-and-a-half-section tunnel
soft rocks
quick construction