| 大跨径连拱隧道围岩支护原理与变形破坏数值模拟分析 |
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| 引用本文： | 崔颖超,龙绪健.大跨径连拱隧道围岩支护原理与变形破坏数值模拟分析[J].中南公路工程,2007,32(6):84-88. |
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| 作者姓名： | 崔颖超 龙绪健 |
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| 作者单位： | 长沙理工大学公路工程地质灾害研究所 湖南长沙410076 |
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| 摘 要： | 以某公路连拱隧道为背景,在采用现代支护原理的条件下,对隧道的开挖、支护过程及强度折减情况进行了数值模拟,通过对围岩的应力、应变、位移随强度参数折减的变化情况以及隧道围岩变形破坏力学响应的变化规律的分析,探讨了数值模拟分析中围岩破坏的判据以及隧道围岩、中隔墙在爆破震动、施工及地下水等因素影响下的稳定性。
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| 关 键 词： | 连拱隧道 围岩支护 变形破坏 数值模拟 |
| 文章编号： | 1002-1205（2007）06-0084-05 |
| 收稿时间： | 2007-10-09 |
| 修稿时间： | 2007年10月9日 |
Supporting Principle and Numerical Simulation Analysis on Deformation and Destruction of Large Span Multi-Arch Tunnel |
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| CUI Yingchao, LONG Xujian.Supporting Principle and Numerical Simulation Analysis on Deformation and Destruction of Large Span Multi-Arch Tunnel[J].Central South Highway Engineering,2007,32(6):84-88. |
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| Authors: | CUI Yingchao LONG Xujian |
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| Abstract: | Based on projects of a tunnel,the excavation and support procedure of construction and also the case strength reduction of are modeled on the condition of using the modern principle.Through analyzing the alteration of the surrounding rock displacement,stress after strength reduction and the alteration of mechanical response of the surrounding rock.The failure criterion of surrounding rock in numerical simulation analysis and the stability of the surrounding rock impacting by blasting,construction and ground water are discussed. |
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| Keywords: | multi-arch tunnel surrounding rock support deformation and failure numerical simulation |
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