| 大断面公路隧道施工围岩稳定性数值分析 |
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| 引用本文： | 林宝龙,马祥旺.大断面公路隧道施工围岩稳定性数值分析[J].石家庄铁路职业技术学院学报,2007,6(1):7-11. |
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| 作者姓名： | 林宝龙 马祥旺 |
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| 作者单位： | 1. 石家庄铁路职业技术学院,河北石家庄,050041
2. 石家庄铁道学院,河北石家庄,050043 |
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| 摘 要： | 针对昆-石高速公路阳宗隧道断面跨度大的特点，通过经济技术、操作难易程度的综合比较，阳宗隧道使用WTD系统锚杆支护对围岩进行加固，效果良好。使用高性能混凝土作为隧道二次衬砌，降低病害的发生，减少整治麻烦，给隧道施工和运营都带来极大的方便。采用地层-结构模式，运用同济曙光软件分析地质条件较差的Ⅴ级围岩隧道施工方法对围岩稳定性的扰动规律，计算结果表明施工方法选择合理；采用荷载-结构模式，应用有限元软件-ANSYS对二衬结构的安全性进行检算，计算结果表明该隧道衬砌结构设计合理、安全性好。
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| 关 键 词： | 大断面隧道 围岩稳定性 WTD系统锚杆 数值模拟 |
| 文章编号： | 1673-1816（2007）01-0007-05 |
| 修稿时间： | 2006-11-29 |
Numerical Analysis on Stability of Surrounding Rock during Construction of Large-Span Highway Tunnel |
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| Lin Baolong,Ma Xiangwang.Numerical Analysis on Stability of Surrounding Rock during Construction of Large-Span Highway Tunnel[J].Journal of Shijiazhuang Institute of Railway Technology,2007,6(1):7-11. |
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| Authors: | Lin Baolong Ma Xiangwang |
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| Institution: | 1.Shijiazhuang Institute of Railway Technology, Shijiazhuang Hebei 050041;2.Shijiazhuang Railway Institute, Shijiazhuang Hebei 050043 China |
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| Abstract: | Based on the characteristic of large-span of Yangzong tunnel of kunming-Shilin expressway and through analyzing different operating plans, WID systematic bolts are usea in Yangzong tunnel, wnlcn is high praised by engineers. In addition, high-performance concrete is used in lining in Yangzong tunnel and this makes tunnel construction and operation become easier. This paper analyzes the influence rules of tunnel construction on No. V surrounding rock stability using finite element program-Tongjishuguang by individual body model, and numerical results prove that the construction method is very reasonable. Then the safety of lining is tested using finite element program-ANSYS by action-reaction model, numerical results prove that the design of lining is very reasonable and the lining has a high security. |
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| Keywords: | large-span tunnel stability of surrounding rock WTD systematic bolts numerical simulation |
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