【摘要】 利用大型通用ANSYS有限元软件的动力学功能,对隧道洞口段进行了地震响应分析,得到了各工况下沿隧道轴线方向衬砌边墙墙脚最大应力和位移变化曲线。通过分析,确定了各工况下洞口段隧道结构的抗震设防长度,为类似工程提供参考。更多还原

【Abstract】 Earthquake response of tunnel portal section is analyzed with the dynamics function of large-scale general finite element software ANSYS.The maximum stress and displacement curve of lining wall feet along tunnel axial line under each condition are obtained.Through analysis,the earthquake-proof defense length of tunnel portal section under each condition is determined,which provides reference for similar engineering.更多还原