摘要
结合拟建鲅鱼圈疏港高速公路上跨既有沙鲅铁路老虎山隧道工程,采用有限元软件进行模拟,评估既有铁路隧道在高速公路施工各工况下支护结构弯矩、轴力及剪力的变化情况,为高速公路建设及运营时期高速公路自身及既有隧道的安全提供依据。
Based on the planned construction of Bayuquan- Shugang expressway over- passing existing Sha- Ba railway Laohushan tunnel project,a simulation is made with the finite element software,to evaluate the existing railway tunnel supporting structure for its changes in bending torque,axial force and shearing force under various working conditions when the expressway is under construction providing reference for improving safety of the expressway itself and the constructed tunnel during the period when the expressway is under construction and operation.
出处
《北方交通》
2014年第12期101-104,共4页
Northern Communications
关键词
高速公路
既有铁路隧道
有限元
施工各工况
安全性评价
Expressway
Existing railway tunnel
Finite element
Construction working conditions
Safety evaluation
