应用ANSYS有限元软件，将交通荷栽作为静载作用在隧道所穿越路面上，对浅埋隧道施工开挖进行静力二维分析，研究隧道施工中既有线通车时，拱顶与地表面的竖向位移和力学特性、支护结构的受力和安全可靠性，通过二维结果确定隧道设计和施工方案的可行性．%ANSYS finite elements are used to convert transportation loads to static loads on roads under which the tunnels run. Two-dimensional analysis of construction and excavation of shallow tunnels is carried out. This paper also examines vertical displacement of vault and floor, mechanical characteristics, as well as force and safety of supporting structures, in the course of underground tunnel construction, when the existing cars are running. The results prove that the tunnel design and the construction scheme are viable.
展开▼
