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韩   喆¹ , 张旭凯¹ , 尚艳亮^2,3 , SYLAJA Vinod Jayan^2,3

 

(1. 石家庄铁道大学 土木工程学院 , 石家庄   050043; 2. 石家庄铁路职业技术学院 , 石家庄    050041;

3. 河北省高校桥隧智慧建造应用技术研发中心 , 石家庄   050041)

摘  要: 为解决穿越地层断裂带隧道大变形控制问题 , 依托穿越地层断裂带隧道工程开展现场长期数据监测 , 深入分析了断层隧道破坏机理并提出针对性加固措施 。结果表明 : 穿越地层断裂带隧道围岩变形显著 , 主要表现为初期变形速率大 、变形持续时间长 、变形破坏不均匀 , 支护结构呈现早期变形快 、二次衬砌变形持续不收敛等特征 , 最终引发围岩大变形等病害 。针对病害特点提出采用套拱和超前支护加固 、拆除后重新支护并增强支护结构刚度 、优化隧道断面结构 、严格控制各工序施工步距 、调整隧道变形预留量等优化方案 , 通过对处治段监测分析表明实施效果良好 。研究成果可为穿越地层断裂带隧道施工与安全控制提供借鉴。

关键词: 地层断裂带 ; 隧道 ; 大变形 ; 现场监测 ; 病害处治措施

中图分类号: U455      文献标志码: A      文章编号: 1005-8249 (2026) 04-0100-08

DOI:10. 19860/j. cnki. issn1005-8249. 2026. 04. 015

 

Research on Large Deformation Monitoring Analysis and Disease Treatment Measures of

Tunnels Crossing Stratum Fault Zone

HAN Zhe¹ , ZHANG Xukai¹ , SHANG Yanliang^2,3 , SYLAJA Vinod Jayan^2,3

(1. School of Civil Engineering, Shijiazhuang Tiedao University, Shijiazhuang 050043, China;

2. Shijiazhuang Institute of Railway Technology, Shijiazhuang 050041, China;

3. Province University Bridge and Tunnel Intelligent Construction Application Technology Research and Development Center, Shijiazhuang 050041, China)

Abstract : To solve the problem of large deformation control of tunnels passing through fault zones in strata, this paper relies on the long-term data monitoring of tunnel projects passing through fault zones in strata, deeply analyzes the failure mechanism of fault tunnels and proposes targeted reinforcement measures. The results show that the deformation of the surrounding rock of the tunnel crossing stratum fault zone is obvious, which is mainly characterized by large initial deformation rate, long deformation duration and uneven deformation and failure.  The supporting structure has the characteristics of fast early deformation and continuous non-convergence of secondary lining deformation.  Eventually, it led to large deformation of surrounding rocks and other diseases. Based on the characteristics of tunnel diseases, it is proposed to use arch and advance support reinforcement, re- support after demolition, and implement optimization schemes such as enhancing the stiffness of the support structure, optimizing the tunnel section structure, strictly controlling the construction step of each process, and adjusting the tunnel deformation reserve. The monitoring analysis of the disposal section shows that the implementation effect is good. The research results can provide reference for the construction and safety control of tunnels passing through strata fault zones.

Key words: stratum fracture zone; tunnel; great deformation; on-site monitoring; disease control measures