The cracking of shield tunnel segments can affect the structural safety of the tunnel, and assessing the safety status of the cracked segments is crucial for ensuring the safe and stable operation of the tunnel. This paper proposes a safety assessment system specifically for shield tunnel segments in response to the impact of cracking on structural safety. The spatial distribution characteristics and geometric features of cracks in the segments are used as core evaluation indicators, and qualitative comparisons are transformed into quantitative mathematical analysis. By combining the Analytic Hierarchy Process (AHP) and Entropy Weight Method (EWM) and introducing game theory to optimize the two weight methods, the limitations of single-weight methods are overcome, enhancing the model's ability to adapt to the complexity of real-world engineering. Finally, an engineering case study is used to evaluate the safety of a shield tunnel section in a soft soil area using a fuzzy comprehensive evaluation method. The results show that the segment damage in this section is severe, with an overall structural damage level of Grade III, which is consistent with the actual monitoring data, thus verifying the accuracy and effectiveness of the assessment model. This study provides a new approach and scientific basis for the safety assessment of cracked shield tunnel segments.
Li Ming
,
Huang Xu
,
Liu Nianwu
. Research on Safety Evaluation Method for Cracked Structure of Shield Tunnel Segments[J]. Chinese Journal of Underground Space and Engineering, 2025
, 21(S2)
: 955
-962
.
DOI: 10.20174/j.JUSE.2025.S2.50
[1] 徐家昕.地铁隧道盾构法施工风险控制研究[D].武汉:武汉工程大学,2020.
[2] 张金红,李瑛,刘兴旺,等.基于水平收敛变形的软黏土盾构隧道病害统计分析[J].土木工程学报,2020,53(增1):124-130.
[3] Zhang W Y,Guo S D,Song P Z,et al.Health evaluation of shield tunnel lining using combination weighting and finite interval cloud model[J].Engineering Applications of Artificial Intelligence,2025,139(B):109645.
[4] 吴贤国,刘茜,陈虹宇,等.基于模糊贝叶斯证据理论的盾构下穿既有隧道安全风险评价[J].隧道建设(中英文),2021,41(5):713-720.
[5] Baradaran V.Assessment and Prioritizing the risks of urban rail transportation by using grey analytical hierarchy process(GAHP)[J].Tarrahan Parseh Transportation Research Institute,2017(4):255-257.
[6] Sarkar D,Singh M,Raghavendra H B.Application of fuzzy analytic hierarchy process for development of risk index for elevated corridor metro rail project in Western India[J].International Journal of Decision Sciences,Risk and Management,2017,7(4):281-298.
[7] 张楠.大直径空推法盾构隧道施工风险模糊综合评判[J].地下空间与工程学报,2022,18(增1):364-369.
[8] Zhou H X,Zhou A,Shen L S.Novel model for risk assessment of shield tunnelling in soil-rock mixed strata[J].ActaGeotechnica,2024,19(8):5111-5123.
[9] 中华人民共和国住房和城乡建设部.城市轨道交通隧道结构养护技术标准(CJJT289-2018)[S].北京:人民交通出版社,2018.
[10] 国家市场监督管理总局,国家标准化管理委员会.城市轨道交通设施运营监测技术规范第3部分:隧道(GB/T39559.3-2020)[S].北京:中国标准出版社,2020.
[11] 中华人民共和国交通运输部.公路隧道养护技术规范(JTGH12—2015)[S].北京:人民交通出版社,2015.
[12] 北京市质量技术监督局.城市轨道交通设施养护维修技术规范(DB11/T 718-2016)[S].北京:北京市质量技术监督局,2016.
[13] 陆尧亮,姜健,王波,等.火灾后盾构隧道衬砌结构残余承载力评估模型研究[J].中国公路学报,2024,37(9):55-67.
[14] 甘林卫.复杂地质条件下大规模隧道群结构健康状态评价研究[D].成都:西南交通大学,2019.
[15] 宋战平,郭德赛,徐甜,等.基于非线性模糊层次分析法的TBM施工风险评价模型研究[J].岩土力学,2021,42(5):1424-1433.
[16] 姚旭飞,牛晓凯,宋伟,等.运营期盾构隧道结构治理评价体系研究[J].地下空间与工程学报,2022,18(6):2080-2089.
[17] 黑焕学.城市轨道交通运营隧道病害辨识与结构健康状态评价[D].北京:北京交通大学,2021.
[18] 彭涌泉.地铁隧道盾构法施工安全风险管理与控制研究[D].郑州:华北水利水电大学,2023.
[19] 胡群芳,周博文,王飞,等.基于模糊层次分析的公路隧道结构安全评估技术[J].自然灾害学报,2018,27(4):41-49.
