Stability Analysis of 3D Excavation of Doubled Arch Tunnels in Highway

陈永辉; 吴继敏; 彭建忠; 陈显春

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Stability Analysis of 3D Excavation of Doubled Arch Tunnels in Highway

更新时间：2025-12-11

- Stability Analysis of 3D Excavation of Doubled Arch Tunnels in Highway
- Vol. 29, Issue 1, Pages: 71-76(2009)
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  CLC： 451
- Published：2009
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[1]陈永辉,吴继敏,彭建忠,陈显春.高速公路连拱隧道开挖三维稳定性分析[J].防灾减灾工程学报,2009,29(01):71-76.

陈永辉, 吴继敏, 彭建忠, et al. Stability Analysis of 3D Excavation of Doubled Arch Tunnels in Highway[J]. 2009, 29(1): 71-76.
[1]陈永辉,吴继敏,彭建忠,陈显春.高速公路连拱隧道开挖三维稳定性分析[J].防灾减灾工程学报,2009,29(01):71-76. DOI：

陈永辉, 吴继敏, 彭建忠, et al. Stability Analysis of 3D Excavation of Doubled Arch Tunnels in Highway[J]. 2009, 29(1): 71-76. DOI：

摘要

通过对金丽温高速公路湾连拱隧道工程区的地质特征的详细分析和现场调查

系统研究了湾隧道开挖及加固全过程的围岩应力场、变形场的状况及变化特征。结果表明

湾连拱隧道围岩应变率较高

围岩衬砌后的位移值比未衬砌时减小了50%

采用目前的衬砌类型后

衬砌变形将较大幅度地变小

衬砌应变值基本满足要求;虽然围岩拉应力值随着隧道的开挖逐渐变大

除局部位置外

衬砌整体基本满足抗拉的要求。

Abstract

The geological characteristics on discontinuity plane of Yangwan doubled arch tunnel in Jinliwen highway is investigated and analyzed in this paper.Surrounding rock stress field and displacement field during excavation and consolidation in Jinliwen highway Yangwan doubled arch tunnel are researched guantitatively. The result shows that strain ratio of surrounding rock is high in Yangwan tunnel

and displacement decreases by fifty percent after liner.It testified that the linear type satisfy surrounding rock displacement.Tension stress is bigger than the first excavation.Anti-tension of linearity is satisfactory except at some location.

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