摘要
结合湖北省境内某隧道项目,采用三维建模模拟环形开挖预留核心土法在不同核心土长度、台阶长度、进尺深度、衬砌施作时间下围岩变形情况,找出环形开挖预留核心土法各因素对围岩稳定性的影响,获得经济合理的开挖参数。总结了施工关键点,为广大工程技术人员提供参考。
Combined with a highway tunnel project in Hu- bei Province, a 3D model of ring cut method is adopted to simulate different situations in tunnel construction, inclu- ding the length of core soil and steps, the footage depth and the deformation of wall rock, in order to find the relationship between different factors of ring cut method and the stability of wall rock. Finally, the most economical parameters of ring cut method are obtained. The key issues in the tunneling are summarized, which can provide references for metro tunneling colleagues.
出处
《城市轨道交通研究》
北大核心
2016年第3期95-98,103,共5页
Urban Mass Transit
基金
中央高校基本科研业务费专项资金项目(SWJTU11ZT33)
教育部创新团队发展计划项目(IRT0955)
关键词
大断面隧道施工
软弱围岩
环形开挖预留核心土法
开挖参数
large section tunnel construction
soft sur- rounding rock
ring cut method
excavate parameters
