| 长大隧道横通道受力分析 |
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| 引用本文： | 张志强,何本国,何川. 长大隧道横通道受力分析[J]. 铁道学报, 2010, 32(1). DOI: 10.3969/j.issn.1001-8360.2010.01.023 |
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| 作者姓名： | 张志强 何本国 何川 |
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| 作者单位： | 西南交通大学,土木工程学院,四川,成都,610031 |
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| 基金项目： | 国家自然科学基金，国家重点基础研究发展规划(973计划) |
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| 摘 要： | 随着我国经济的发展,基础设施,尤其是以铁路、公路为代表的交通设施建设不断加速,出现大量长大山岭隧道工程.从地下工程运营避难、救援以及维修管理等角度出发,在两条主隧道一定长度位置处,需要设置联络横通道.本文采用三维有限元数值模拟主隧道与横通道组成不同交角的空间复杂受力交叉结构的施工过程,得出交叉角越小,围岩应力集中程度越高、横通道衬砌结构受力越大的结论.因此,需要对主隧道与横通道交叉部尤其是主隧道与横通道斜交的锐角一侧,给以特别的加强设计以保证结构安全.本文研究结果对地下工程中主隧道与横通道的一体化设计施工,有一定参考价值.
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| 关 键 词： | 长大隧道 横通道 交叉角 有限元 |
Analysis on Mechanics of Intersection of Adit and Main Tunnel |
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| ZHANG Zhi-qiang,HE Ben-guo,HE Chuan. Analysis on Mechanics of Intersection of Adit and Main Tunnel[J]. Journal of the China railway Society, 2010, 32(1). DOI: 10.3969/j.issn.1001-8360.2010.01.023 |
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| Authors: | ZHANG Zhi-qiang HE Ben-guo HE Chuan |
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| Affiliation: | ZHANG Zhi-qiang,HE Ben-guo,HE Chuan(School of Civil Engineering,Southwest Jiaotong University,Chengdu 610031,China) |
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| Abstract: | Nowadays with the development of the national economices of our country,the needs for infrastructures,especially for traffic infrastructures such as railways and highways are continually increasing,which leads to tremendous growth of the number of long mountain tunnel projects.The adits connecting two long tunnels are recognised as the essential auxiliary structures to facilitate refuge rescue,maintenance and management during traffic operation.Through 3D FEM numerical simulation analysis of construction of... |
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| Keywords: | long tunnel adit intersection angle finite element method |
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