中文核心期刊
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中国科技核心期刊
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重庆交通大学学报（自然科学版）

重庆交通大学学报（自然科学版） ›› 2022, Vol. 41 ›› Issue (03): 53-57.DOI: 10.3969/j.issn.1674-0696.2022.03.08

• 交通+大数据人工智能 • 上一篇    下一篇

隧道安全评估的可靠度分析与工程应用

秦海洋1，苏宁2，汤永净3   

  1. (1. 同济大学 土木工程学院，上海 200092； 2. 陕西高速公路建设集团公司，陕西 西安 710000； 3. 同济大学浙江学院 土木工程系，浙江 嘉兴 314051)
  • 收稿日期:2020-07-02 修回日期:2022-01-26 发布日期:2022-03-24
  • 作者简介:秦海洋(1993—)，男，陕西西安人，博士研究生，主要从事隧道 BIM 及地下建筑工程方面的研究。E-mail：oceanqin@tongji.edu.cn 通信作者：汤永净(1965—)，女，江西九江人，教授，主要从事地下建筑工程及历史建筑保护方面的研究。E-mail：ytang@tongji.edu.cn

Reliability Analysis and Engineering Application of Tunnel Safety Assessment

QIN Haiyang1, SU Ning2, TANG Yongjing3   

  1. (1. College of Civil Engineering, Tongji University, Shanghai 200092, China; 2. Shaanxi Expressway Construction Group Company, Xian 710000, Shaanxi, China; 3. Department of Civil Engineering, Tongji Zhejiang College, Jiaxing 314051, Zhejiang, China)
  • Received:2020-07-02 Revised:2022-01-26 Published:2022-03-24

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摘要： 为了提高考虑岩性不均和参数易变情况下的隧道结构安全可靠度，总结了可靠度分析方法特性，归纳出2种隧道可靠度分析方法即概率法及非概率法，前者如矩法和响应面法，后者如鲁棒法。采用概率可靠度方法（矩法）分析了某地铁施工引起的地表沉降问题，并用有限元方法进行了验证；采用非概率可靠度方法（鲁棒分析法）分析了某回风隧道的结构安全问题，并进行了安全评估。结果表明：有限元方法计算得到的最大地表沉降量为14.2 mm，该结果不随沉降量警戒值S0的变化而波动；采用鲁棒方法得到的最大地表沉降量为24.1 mm，失效概率PF=2.13%，PF随着沉降量警戒值S0的增大而减少，隧道支护抗力大于围岩压力，回风隧道设计满足安全要求；在考虑岩性不均及参数易变时，可靠度分析能够更全面地对隧道安全性进行动态评估，具有重要工程应用意义。

关键词: 隧道工程；可靠度；概率法与非概率法；矩法；鲁棒法

Abstract: In order to improve the safety and reliability of tunnel structure considering uneven lithology and variable parameters, the characteristics of reliability analysis methods were summarized. Two tunnel reliability analysis methods were obtained: probabilistic method and non-probabilistic method. The former was such as moment method and response surface method, and the latter was such as robust method. The probabilistic reliability method (moment method) was used to analyze the surface settlement caused by the construction of a subway, which was verified by the finite element method. The non-probabilistic reliability method (robust method) was used to analyze the structural safety of a return air tunnel, and the safety evaluation was carried out. The results show that the maximum settlement obtained by the finite element method is 14.2 mm, which does not fluctuate with the change of the settlement warning value S0; the maximum settlement obtained by the robust method is 24.1 mm, the failure probability PF is equivalent to 2.13%, and PF decreases with the increase of S0. The tunnel support resistance is greater than the surrounding rock pressure, and the design of the return air tunnel meets the safety requirements. When the uneven lithology and variable parameters are considered, the reliability analysis can make a more comprehensive dynamic assessment of tunnel safety, which has important engineering application significance.

Key words: tunnel engineering; reliability; probabilistic method and non-probabilistic method; moment method; robust method

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