| 大跨隧道超浅埋段护拱反吊暗挖法设计及作用分析 |
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| 引用本文： | 吕勇刚,秦辉辉.大跨隧道超浅埋段护拱反吊暗挖法设计及作用分析[J].隧道建设,2011,31(4):489-493. |
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| 作者姓名： | 吕勇刚 秦辉辉 |
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| 作者单位： | 1. 中交公路规划设计院有限公司,北京,100088
2. 北京交通大学隧道及地下工程教育部工程研究中心,北京,100044 |
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| 摘 要： | 通过介绍护拱反吊法在大崛坑1号隧道中部超浅埋冲沟段暗挖施工中成功应用,并利用三维数值计算模拟动态施工过程,对护拱反吊方案作用效果进行分析,总结护拱反吊法作用机制。分析结果表明:护拱反吊法在控制围岩变形,抑制塑性区发展以及对支护结构受力状态的改善等方面效果明显,是一种安全、快速有效的大跨隧道超浅埋段暗挖施工方法。
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| 关 键 词： | 护拱反吊法 大跨隧道 超浅埋 暗挖法 数值计算 |
| 收稿时间： | 2011-05-04 |
Design of Mining of Super-shallow-covered Large-span Tunnel under Suspended Protection Arch and Analysis on its Effect |
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| LV Yonggang,QIN Huihui.Design of Mining of Super-shallow-covered Large-span Tunnel under Suspended Protection Arch and Analysis on its Effect[J].Tunnel Construction,2011,31(4):489-493. |
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| Authors: | LV Yonggang QIN Huihui |
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| Institution: | 1.CCCC Highway Consultant Co.,Ltd,Beijing 100088,China;2.Engineering Research Center of Tunnel and Underground Engineering,Ministry of Education,Beijing Jiaotong University,Beijing 100044,China) |
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| Abstract: | Suspended protection arch method has been successfully applied in the mining construction of the super-shallow-covered section of Dajuekeng No.1 tunnel.The dynamic construction process is simulated by means of 3D numerical method,the effect of the suspend |
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| Keywords: | suspended protection arch method large-span tunnel super-shallow cover mining method numerical simulation |
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