| 大跨度软岩隧道浅埋区开挖方法优选 |
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| 引用本文： | 刘伟. 大跨度软岩隧道浅埋区开挖方法优选[J]. 山西建筑, 2012, 0(31): 191-193 |
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| 作者姓名： | 刘伟 |
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| 作者单位： | 陕西省公路局 |
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| 摘 要： | 以集呼高速旗下营隧道为工程背景，采用ABAQUS有限元软件，就三台阶七步开挖方法与CD法的全过程进行了数值模拟，通过两种工艺下地表沉降、拱顶沉降、周边收敛的对比分析表明，CD法更适合于旗下营隧道的施工。
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| 关 键 词： | 大跨，软岩，浅埋隧道，三台阶七步法，CD法 |
Optimal excavation method selection of large-span soft rock tunnel in shallow-embedded region |
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| LIU Wei. Optimal excavation method selection of large-span soft rock tunnel in shallow-embedded region[J]. Shanxi Architecture, 2012, 0(31): 191-193 |
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| Authors: | LIU Wei |
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| Affiliation: | LIU Wei(Highway Bureau of Shaanxi Province,Xi’an 710068,China) |
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| Abstract: | Taking Qixiaying tunnel on Ji-Hu highway as the engineering background,applying ABAQUS finite element software,the paper carries out numerical simulation of three-step and seven-foot method and CD method.Through comparing the surface subsidence,top arch subsidence and surrounding convergence of two methods,it finds out that CD method is more suitable in Qixiaying tunnel construction. |
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| Keywords: | large-span soft rock shallow-embedded tunnel three-step and seven-foot method CD method |
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