龙潭隧道右线出洞口开挖与支护数值模拟  

Numerical Simulation of Excavation And Support of the Outlet of Longtan Tunnel Right Line

作　　者：石宗峰 

机构地区：[1]中铁十四局集团第二工程有限公司,山东泰安271000

出　　处：《土工基础》2005年第4期48-50,共3页Soil Engineering and Foundation

摘　　要：以龙潭隧道右线出洞口为例,采用三维快速拉格朗日差分法(FLAC3D),对其施工开挖过程及支护进行了模拟,得出了一些建设性的结论,对工程的施工具有指导意义。Taking the outlet of Longtan tunnel right line as an example, the excavation and the effect of support are simulated for it by three-dimensional fast Lagrange analysis Method（FLAC3D）. Some useful conclusions are gained through analyzing the characters of stress, displacement vector and plastic zone of surrounding rock after excavation . It will be significant for the construction of the project.

关 键 词：隧道 围岩 开挖 稳定性 

分 类 号：U451[建筑科学—桥梁与隧道工程]