摘要
以湖北宴家隧道工程为例,结合现场施工监测,采用有限元程序对节理围岩隧道施工进行模拟,对节理围岩隧道的开挖对地层扰动的范围进行定量确定。对小间距双线隧道在炭质页岩条件下节理面上游隧道先行施工进行数值模拟,将实测数据与数值模拟进行对比,总结出炭质页岩小间距隧道左右洞有施工差别时围岩变形规律。
Taking the Hubei Yanjia tunnel project as an example, the construction of jointed surrounding rock tunnels was simulated using finite element software and the range of disturbance caused by the excavation was quantatively determined. Numerical simulations were also performed for the upper tunnel under carbonaceous shale in small interval tunnel and simulation results were compared against site measurement. Conclusions were drawn regarding the principles of tunnel surrounding rock deformation when the two holes are constructed differently
出处
《施工技术》
CAS
北大核心
2012年第10期87-89,共3页
Construction Technology
关键词
隧道工程
炭质页岩
围岩
变形
数值模拟
tunnels
carbonaceous shale
surrounding rock
deformation
numerical simulation