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右江南岸隧道洞口段结构抗震设防长度研究
Study on Earthquake-proof Defense Length of Nan’an Tunnel Portal Section inYoujiang
【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。
【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.
【关键词】 隧道洞口段;
抗震设防长度;
粘-弹性边界;
【Key words】 tunnel portal section; earthquake-proof defense length; viscoelastic boundary;
【Key words】 tunnel portal section; earthquake-proof defense length; viscoelastic boundary;
- 【文献出处】 路基工程 ,Subgrade Engineering , 编辑部邮箱 ,2010年06期
- 【分类号】U452.289
- 【下载频次】47