Two-dimensional finite element analysis for strengthening effects of reinforced concrete layer of tunnel lining with crackles

ZHANG Yu-jun; LI Zhi-guo

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Two-dimensional finite element analysis for strengthening effects of reinforced concrete layer of tunnel lining with crackles

更新时间：2026-06-25

- Two-dimensional finite element analysis for strengthening effects of reinforced concrete layer of tunnel lining with crackles
- Vol. 26, Issue 7, (2005)
- 作者机构：
  
  1. 中国科学院岩土力学重点实验室,武汉,430071
  2. ．中铁隧道集团有限公司科研所,河南,洛阳,471009
- 作者简介：
- 基金信息：
- DOI：
  CLC： TU457
- Online First：17 December 2013，
  
  Published：2005
- 稿件说明：
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ZHANG Yu-jun, LI Zhi-guo. Two-dimensional finite element analysis for strengthening effects of reinforced concrete layer of tunnel lining with crackles[J]. 2005, 26(7).
DOI：

ZHANG Yu-jun, LI Zhi-guo. Two-dimensional finite element analysis for strengthening effects of reinforced concrete layer of tunnel lining with crackles[J]. 2005, 26(7). DOI：

摘要

以平面有限元位移法对铁山隧道和大垭口隧道带裂纹二次支护内设钢筋混凝土衬套的补强效果进行了数值模拟。模拟结果表明：加了钢筋混凝土衬套后，可大大降低裂纹尖端的应力强度因子，显著地提高衬砌承载安全系数。

Abstract

The strengthening effects of reinforced concrete liner cover for tunnel lining with crackles are investigated

and the numerical simulations for two computations of Tieshan Tunnel and Dayakou Tunnel are carried out by using a 2D FEM code. The computation results show that the stress intensity factors at the crackle tips can be decreased greatly; and the bearing safety factors of the linings can be raised obviously.

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