摘要
使用弹塑性有限元方法对某双跨连拱隧道进行了数值模拟计算 ,分析了支护结构与围岩在不同施工阶段的受力、变形及塑性区的变化状态 。
In this paper,a elastic-plastic FEM is used to numerical computed a connecting-arch tunnel.The stress-deformation state and the status of the plastic zones of the surrounding rock and the support structure are analyzed in the vary stages of constructing.The conclusions have some advisory effects on the construction of the tunnel in the softening surrounding rock.
出处
《西部探矿工程》
CAS
2002年第4期66-68,共3页
West-China Exploration Engineering
关键词
连拱隧道
软弱围岩
衬砌结构
受力分析
计算模形
变形
connecting-arch tunnel
softening surrounding rock
lining structure
forced analysis
