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

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.