| 软弱围岩条件下连拱隧道施工阶段的受力分析 |
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| 引用本文： | 余晓琳,黄小华,彭立敏.软弱围岩条件下连拱隧道施工阶段的受力分析[J].西部探矿工程,2002,14(4):66-68. |
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| 作者姓名： | 余晓琳 黄小华 彭立敏 |
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| 作者单位： | 中南大学土木建筑学院,湖南,长沙,410075 |
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| 摘 要： | 使用弹塑性有限元方法对贵阳小关隧道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，从而为该隧道在软弱围岩条件下的顺利建造起到了一定的指导作用。
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| 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 |
| 文章编号： | 1004-5716(2002)04-66-03 |
Stress Analysis of Connecting—arch Tunnels at Various Stages of Construction for Soft Surrounding Rocks |
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| YU Xiao-lin,HUANG Xiao-hua,PENG Li-min.Stress Analysis of Connecting—arch Tunnels at Various Stages of Construction for Soft Surrounding Rocks[J].West-china Exploration Engineering,2002,14(4):66-68. |
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| Authors: | YU Xiao-lin HUANG Xiao-hua PENG Li-min |
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| Abstract: | 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. |
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| Keywords: | connecting-arch tunnel softening surrounding rock lining structure forced analysis |
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