摘要
通过高速公路隧道施工监测及有限元数值分析方法,分析隧道施工过程中围岩应力变化情况。在隧道施工过程中对围岩位移和应力进行监测,分析围岩的位移、应力状态随时间的变化规律,同时结合有限元计算软件ADI-NA对隧道开挖过程进行模拟,寻找围岩应力分布规律,分析围岩稳定性。为隧道施工过程中支护时间的选取提供了依据。
Based on the monitoring for expressway tunnel construction and finite element analysis, the paper analyzed the country rock stress state in the process of tunnel construction. Monitoring for country rock, analyzed the variablity regular with displacement and stress state adapts to time in the course of tunnel construction. And the process of tunnel excavation is simulated by using ADINA, a FEM software. The distribution regular of rock mass stress is searched and country rock stability is analyzed. It offered a foundation for selection supporting time in the process of building the tunnel.
出处
《勘察科学技术》
2006年第5期3-5,35,共4页
Site Investigation Science and Technology
关键词
隧道施工
围岩
有限元
ADINA
tunnel construction
country rock
finite element method
ADINA
