[1]张亚敏,沈笑秋,李丰伟,等.双层地层盾构隧道开挖面稳定性及影响因素分析[J].郑州大学学报(工学版),2026,47(XX):1-9.[doi:10.13705/j.issn.1671-6833.2025.05.022]
　ZHANG Yamin,SHEN Xiaoqiu,LI Fengwei,et al.Analysis of Excavation Face Stability and Influencing Factors of Shield Tunnel in Double-layer Strata[J].Journal of Zhengzhou University (Engineering Science),2026,47(XX):1-9.[doi:10.13705/j.issn.1671-6833.2025.05.022]
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双层地层盾构隧道开挖面稳定性及影响因素分析()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
47
期数:
2026年XX
页码:
1-9
栏目:
出版日期:
2026-09-10

文章信息/Info

Title:
Analysis of Excavation Face Stability and Influencing Factors of Shield Tunnel in Double-layer Strata
作者:
张亚敏1; 3; 沈笑秋1; 2; 李丰伟1; 2; 郑元勋1; 2;  Grzegorz Ludwik Golewski4
1. 郑州大学 隧道掘进机及智能运维全国重点实验室,河南 郑州 450001;2. 郑州大学 水利与交通学院, 河南 郑州 450001 ;3. 郑州大学 科技查新站,河南 郑州 450001; 4. Department of Structural Engineering, Faculty of Civil Engineering and Architecture, Lublin University of Technology, Nadbystrzycka 40 Str. , Lublin 20-618, Poland
Author(s):
ZHANG Yamin1; 3 ;  SHEN Xiaoqiu1;  2 ;  LI Fengwei1; 2 ;  ZHENG Yuanxun1; 2 ;  Grzegorz Ludwik Golewski4
1. National Key Laboratory of Tunnel Boring Machine and Intelligent Operation and Maintenance, Zhengzhou University, Zhengzhou 450001, China; 2. School of Water Conservancy and Transportation, Zhengzhou University , Zhengzhou 450001, China; 3 . Technology Patent Search Station, Zhengzhou University, Zhengzhou 450001, China; 4. Department of Structural Engineering, Faculty of Civil Engineering and Architecture, Lublin University of Technology, Nadbystrzycka 40 Str. , Lublin 20-618, Poland
关键词:
盾构隧道; 双层地层; 开挖面稳定性; 数值模拟; 敏感度分析
Keywords:
shield tunnel;  double-layer strata;  excavation face stability;  numerical simulation;  sensitivity analysis
分类号:
U451TU91
DOI:
10.13705/j.issn.1671-6833.2025.05.022
文献标志码:
A
摘要:
为了探究渗流作用下双层地层隧道开挖面失稳机理及其对盾构施工安全性的影响，针对渗流-地层耦合环境中开挖面稳定性问题展开系统研究。首先，基于FLAC3D有限差分软件建立了两种典型地层工况的精细化数值模型：上硬下软地层和上软下硬地层；其次，基于数值模型分析了埋深比、土体内摩擦角、黏聚力、地下水位差及地层分界面位置对盾构开挖面极限支护压力的影响机制；最后，引入灰色关联分析法对上述5种影响因素进行敏感性评价与排序，从而定量揭示各因素对盾构开挖面稳定性的影响程度及其差异性。研究结果表明：在复合地层条件下，开挖面稳定性主要受下部地层强度控制，上部地层的影响仅为下部的40.1%（上硬下软地层）和32.5%（上软下硬地层）；各影响因素敏感性排序依次为：水位>土体强度>埋深比>地层分界面位置。
Abstract:
To investigate the instability mechanism of tunnel excavation faces in double-layer strata under seepage conditions and its impact on the safety of shield construction, a systematic study was conducted on the stability of excavation faces in a seepage-stratum coupled environment. First, refined numerical models of two typical stratum conditions—upper-hard and lower-soft strata and upper-soft and lower-hard strata—were established based on the FLAC3D finite difference software. Next, the influence mechanisms of the burial depth ratio, soil internal friction angle, cohesion, groundwater level difference, and stratum interface position on the ultimate support pressure of the shield excavation face were analyzed using the numerical models. Finally, the gray correlation analysis method was introduced to evaluate and rank the sensitivity of these five influencing factors, thereby quantitatively revealing the degree and differences of their impacts on the stability of the shield excavation face. The research results indicated that under composite stratum conditions, the stability of the excavation face was primarily controlled by the strength of the lower stratum, with the influence of the upper strata being only 40.1% (upper-hard and lower-soft strata) and 32.5% (upper-soft and lower-hard strata) of that of the lower stratum. The sensitivity ranking of the influencing factors was as follows: groundwater level>soil strength>burial depth ratio>stratum interface position.

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备注/Memo

备注/Memo:
收稿日期:2025-04-12;修订日期:2025-06-16
基金项目:国家自然科学基金资助项目(51878623;52279144)
通信作者:郑元勋(1978— ) ,男,河南驻马店人,郑州大学教授,博士,博士生导师,主要从事基础设施检测与加固方面的研究，E-mail:yxzheng@zzu.edu.cn。
更新日期/Last Update: 2026-01-16