| 分岔隧道大拱段衬砌结构受力分析 |
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| 引用本文： | 林立华. 分岔隧道大拱段衬砌结构受力分析[J]. 土工基础, 2007, 21(6): 64-66 |
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| 作者姓名： | 林立华 |
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| 作者单位： | 厦门路桥建设集团有限公司,福建厦门,361026 |
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| 摘 要： | 大拱隧道受结构和跨度的影响,其初期支护与二次衬砌各自承受不同的围岩压力。给出了大拱隧道的荷载计算方法,并以某高速公路隧道为例,按荷载结构法分析计算了衬砌内力。计算分析表明,初次衬砌所受荷载比二次衬砌大得多,所以初次衬砌是主要承载结构。分析方法对类似隧道衬砌设计具有参考意义。
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| 关 键 词： | 大拱隧道 衬砌 荷载-结构法 内力分析 |
| 文章编号： | 1004-3152(2007)06-0064-03 |
| 修稿时间： | 2007-05-31 |
Stress Analysis of Forked Tunnel Lining with Large Span |
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| LIN Li hua. Stress Analysis of Forked Tunnel Lining with Large Span[J]. Soie Engineering and Foundation, 2007, 21(6): 64-66 |
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| Authors: | LIN Li hua |
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| Abstract: | The primary support and the second lining of large-spanned tunnel have endured different surrounding rock stress because of the influence of structure and span of tunnel.The calculation method of loading on lining is suggested in the paper.According to the condition of engineering geology of a large-spanned tunnel, the internal force of lining is calculated.The results show that the primary support is the dominating structure for support the loading.The analysis method of this paper is useful for the lining design of analogous tunnel. |
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| Keywords: | large-spanned tunnel lining loading-structure method internal force analysis |
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