Numerical analysis of stability of wall-rock of double-arch tunnel through fractured mountain body

JIN Feng-nian; WANG Bo; JIANG Mei-rong

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Numerical analysis of stability of wall-rock of double-arch tunnel through fractured mountain body

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- Numerical analysis of stability of wall-rock of double-arch tunnel through fractured mountain body
- Vol. 29, Issue S1, (2008)
- 作者机构：
  
  解放军理工大学工程兵工程学院,南京,210007
- 作者简介：
- 基金信息：
- DOI：
  CLC： U451
- Online First：15 April 2016，
  
  Published：2008
- 稿件说明：
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JIN Feng-nian, WANG Bo, JIANG Mei-rong. Numerical analysis of stability of wall-rock of double-arch tunnel through fractured mountain body[J]. 2008, 29(S1).
DOI：

JIN Feng-nian, WANG Bo, JIANG Mei-rong. Numerical analysis of stability of wall-rock of double-arch tunnel through fractured mountain body[J]. 2008, 29(S1). DOI：

摘要

双连拱隧道开挖过程中围岩变形和应力变化情况复杂，施工难度大，有必要采取一些措施为实际施工提供技术指导，确保施工的安全。利用数值模拟方法，计算分析了南京九华山隧道穿越破碎山体的受力、变形情况，分析结果表明，开挖过程中围岩能够保持稳定，为实际施工提供了理论指导和参考，也为这类问题的研究提供了一条新的思路。

Abstract

In the course of double-arch tunnel construction

the variations of stress and deformations of wall-rock are complex. It is difficult to construct double-arch tunnel

and it is necessary to perform some technological guidances to assure the of construction safety. Numerical analysis is used to calculate and analyze the stress and deformation of the fractured mountain body. The result shows that in the course of construction

the wall-rock can maintain stable. A theoretical direction and reference is offered to practical performance. And a new method is also offered.

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State Key Laboratory of Intelligent Construction and Maintenance for Geotechnical and Tunnel Engineering under Extreme Environments, Southwest Jiaotong University

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