Research on simplified method of multiple structure reliability of metro tunnel

SONG Yu-xiang; JIA Xiao-yun; ZHU Yong-quan

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Research on simplified method of multiple structure reliability of metro tunnel

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- Research on simplified method of multiple structure reliability of metro tunnel
- Vol. 28, Issue S1, (2007)
- 作者机构：
  
  石家庄铁道学院土木工程分院,石家庄,050043
- 作者简介：
- 基金信息：
- DOI：
  CLC： U451
- Online First：28 March 2014，
  
  Published：2007
- 稿件说明：
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SONG Yu-xiang, JIA Xiao-yun, ZHU Yong-quan. Research on simplified method of multiple structure reliability of metro tunnel[J]. 2007, 28(S1).
DOI：

SONG Yu-xiang, JIA Xiao-yun, ZHU Yong-quan. Research on simplified method of multiple structure reliability of metro tunnel[J]. 2007, 28(S1). DOI：

摘要

应用荷载-结构模型，建立了地铁矿山法区间隧道二次衬砌结构截面可靠度功能函数，根据北京地铁4，5和10号线勘探地质地层物理力学性质统计特征，利用蒙特卡罗方法进行区间隧道结构可靠度分析。探讨了在长期自然环境下复合式衬砌的初期支护与二次衬砌各自的作用，认为二次衬砌承受运营阶段的全部荷载，初期支护的作用仅仅是改善了二次衬砌的工作环境，改善后二次衬砌周围的弹性抗力系数应适当提高，这样处理不仅可简化计算工作，也符合衬砌结构的实际工作情况。

Abstract

Performance function of lining structure reliability is established according to “action-reaction” model. Based on the statistical characteristics of physical property obtained by exploration of No.4

No.5 and No.10 line of Beijing Subway

the structural reliability of Beijing metro tunnel is analyzed by using Monte-Carlo method. The effects of primary support and lining under the condition of natural environment are discussed

the results consider that lining bear the whole loads during the operation and primary support only improve the work environment of lining. The elastic resisting coefficient around the lining should be increased

which can not only simplify calculation

but also meet the working situation of lining structure.

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