ISSN 1003-8035
CN 11-2852/P
| Citation: |
LIU Xiaolong，SUN Chuang，WANG Hui，et al. Deformation mechanism and optimum supporting structures in fault-bearing biased tunnels[J]. The Chinese Journal of Geological Hazard and Control，2025，36(1): 108-118. DOI: 10.16031/j.cnki.issn.1003-8035.202306014
|
To explore the deformation mechanisms of tunnel surrounding rock under complex geological conditions and develop appropriate technologies for controlling surrounding rock deformation, this study analyzes the deformation of surrounding rock at the mouth section of a biased tunnel, using the Qingquan Tunnel as a case study. Based on FLAC3D, stability of surrounding rock under different support conditions with and without faults is studied to clarify the deformation mechanism of the surrounding rock and propose effective control measures. The study shows that: (1) Excavation disturbances during backward hole excavation under biased conditions cause tensional interaction between the overlying surrounding rock and fault zones, leading to the interlayer rock body bending, rupturing, and stress redistribution, exacerbating the fragmentation of fault zones and resulting in significant surrounding rock deformation. (2) Weak surrounding rock exhibits limited self-stabilization capacity; secondary stress induces sustainable plastic deformation in small clear span tunnel roofs and sidewalls, gradually causing squeezing deformation in support structures over time. Existing support schemes fail to provide sufficient strength and stiffness to resist surrounding rock deformation. (3) Proposed composite control measures of slope surface anchors and deep-buried lateral anti-sliping piles effectively control surrounding rock deformation, mitigate the adverse impact of fractured fault zones on rock stability, and numerical calculation results align closely with on-site monitoring results. The findings provide valuable insights for deformation control of tunnel surrounding rock under similar complex geological conditions.
| [1] |
付君宜,陈发达,沈志平,等. 岩溶山区城市地下隧道工程地质灾害风险分析[J]. 中国地质灾害与防治学报,2023,34(3):100 − 108. [FU Junyi,CHEN Fada,SHEN Zhiping,et al. Risk analysis of the geological hazards during urban tunnel construction in mountainous Karst areas[J]. The Chinese Journal of Geological Hazard and Control,2023,34(3):100 − 108. (in Chinese with English abstract)]
FU Junyi, CHEN Fada, SHEN Zhiping, et al. Risk analysis of the geological hazards during urban tunnel construction in mountainous Karst areas［J］. The Chinese Journal of Geological Hazard and Control, 2023, 34（3）: 100 − 108. （in Chinese with English abstract）
|
| [2] |
昝文博,赖金星,曹校勇,等. 漂卵石隧道围岩力学响应与失稳破坏机制[J]. 岩石力学与工程学报,2021,40(8):1643 − 1653. [ZAN Wenbo,LAI Jinxing,CAO Xiaoyong,et al. Mechanical responses and instability failure mechanisms of surrounding rock of tunnels in boulder-cobble mixed stratum[J]. Chinese Journal of Rock Mechanics and Engineering,2021,40(8):1643 − 1653. (in Chinese with English abstract)]
ZAN Wenbo, LAI Jinxing, CAO Xiaoyong, et al. Mechanical responses and instability failure mechanisms of surrounding rock of tunnels in boulder-cobble mixed stratum［J］. Chinese Journal of Rock Mechanics and Engineering, 2021, 40（8）: 1643 − 1653. （in Chinese with English abstract）
|
| [3] |
岳中琦. 梅大高速公路路基边坡失稳条件与滑坡机理初探[J]. 中国地质灾害与防治学报,2024,35(4):1 − 12. [YUE Zhongqi. Study on the instability condition and landslide mechanism of subgrade slope in Mei–Da Expressway[J]. The Chinese Journal of Geological Hazard and Control,2024,35(4):1 − 12. (in Chinese with English abstract)]
YUE Zhongqi. Study on the instability condition and landslide mechanism of subgrade slope in Mei–Da Expressway［J］. The Chinese Journal of Geological Hazard and Control, 2024, 35（4）: 1 − 12. （in Chinese with English abstract）
|
| [4] |
胡炜, 谭信荣, 蒋尧, 等. 深埋顺层偏压隧道围岩破坏机理及规律研究——以郑万线某隧道为例[J]. 水文地质工程地质,2020,47(3):60 − 68. [HU Wei, TAN Xinrong, JIANG Yao, et al. A study of the mechanism and regularity of failures in the surrounding rock of a deep buried bias tunnel embedded in geologically bedding strata: Taking one tunnel of the Zhengwan line as an example[J]. Hydrogeology & Engineering Geology,2020,47(3):60 − 68. (in Chinese with English abstract)]
HU Wei, TAN Xinrong, JIANG Yao, et al. A study of the mechanism and regularity of failures in the surrounding rock of a deep buried bias tunnel embedded in geologically bedding strata: Taking one tunnel of the Zhengwan line as an example［J］. Hydrogeology & Engineering Geology, 2020, 47（3）: 60 − 68. （in Chinese with English abstract）
|
| [5] |
杜建明,房倩. 考虑黏聚力与内摩擦角的变坡面浅埋偏压隧道围岩压力计算方法[J]. 湖南大学学报(自然科学版),2022,49(1):165 − 173. [DU Jianming,FANG Qian. Calculation method of surrounding rock pressure of shallow-buried and asymmetrical pressure tunnel under variable slopes considering cohesion and internal friction angle[J]. Journal of Hunan University (Natural Sciences),2022,49(1):165 − 173. (in Chinese with English abstract)]
DU Jianming, FANG Qian. Calculation method of surrounding rock pressure of shallow-buried and asymmetrical pressure tunnel under variable slopes considering cohesion and internal friction angle［J］. Journal of Hunan University （Natural Sciences）, 2022, 49（1）: 165 − 173. （in Chinese with English abstract）
|
| [6] |
康永水,耿志,刘泉声,等. 我国软岩大变形灾害控制技术与方法研究进展[J]. 岩土力学,2022,43(8):2035 − 2059. [KANG Yongshui,GENG Zhi,LIU Quansheng,et al. Research progress on support technology and methods for soft rock with large deformation hazards in China[J]. Rock and Soil Mechanics,2022,43(8):2035 − 2059. (in Chinese with English abstract)]
KANG Yongshui, GENG Zhi, LIU Quansheng, et al. Research progress on support technology and methods for soft rock with large deformation hazards in China［J］. Rock and Soil Mechanics, 2022, 43（8）: 2035 − 2059. （in Chinese with English abstract）
|
| [7] |
严涛,李坤杰,牟智恒,等. 变坡条件下浅埋偏压隧道围岩压力解析法[J]. 西南交通大学学报,2020,55(3):531 − 536. [YAN Tao,LI Kunjie,MOU Zhiheng,et al. Analytical method for calculation of surrounding rock pressure of shallow-buried and unsymmetrically loaded tunnel adjacent to variable slope[J]. Journal of Southwest Jiaotong University,2020,55(3):531 − 536. (in Chinese with English abstract)]
YAN Tao, LI Kunjie, MOU Zhiheng, et al. Analytical method for calculation of surrounding rock pressure of shallow-buried and unsymmetrically loaded tunnel adjacent to variable slope［J］. Journal of Southwest Jiaotong University, 2020, 55（3）: 531 − 536. （in Chinese with English abstract）
|
| [8] |
池建军,刘登学,丁秀丽,等. 第三系泥岩隧洞围岩大变形成因及应对措施[J]. 长江科学院院报,2022,39(10):88 − 96. [CHI Jianjun,LIU Dengxue,DING Xiuli,et al. Causes and countermeasures of large deformation in a tunnel with tertiary mudstone[J]. Journal of Yangtze River Scientific Research Institute,2022,39(10):88 − 96. (in Chinese with English abstract)] DOI: 10.11988/ckyyb.20211286
CHI Jianjun, LIU Dengxue, DING Xiuli, et al. Causes and countermeasures of large deformation in a tunnel with tertiary mudstone［J］. Journal of Yangtze River Scientific Research Institute, 2022, 39（10）: 88 − 96. （in Chinese with English abstract） DOI: 10.11988/ckyyb.20211286
|
| [9] |
张广泽,邓建辉,王栋,等. 隧道围岩构造软岩大变形发生机理及分级方法[J]. 工程科学与技术,2021,53(1):1 − 12. [ZHANG Guangze,DENG Jianhui,WANG Dong,et al. Mechanism and classification of tectonic-induced large deformation of soft rock tunnels[J]. Advanced Engineering Sciences,2021,53(1):1 − 12. (in Chinese with English abstract)]
ZHANG Guangze, DENG Jianhui, WANG Dong, et al. Mechanism and classification of tectonic-induced large deformation of soft rock tunnels［J］. Advanced Engineering Sciences, 2021, 53（1）: 1 − 12. （in Chinese with English abstract）
|
| [10] |
杜建明,房倩,海路,等. 地表变坡下浅埋偏压隧道围岩压力计算方法[J]. 中南大学学报(自然科学版),2021,52(11):4088 − 4098. [DU Jianming,FANG Qian,HAI Lu,et al. Calculation method for surrounding rock pressure of shallow tunnel with asymmetrical pressure of variable slopes[J]. Journal of Central South University (Science and Technology),2021,52(11):4088 − 4098. (in Chinese with English abstract)]
DU Jianming, FANG Qian, HAI Lu, et al. Calculation method for surrounding rock pressure of shallow tunnel with asymmetrical pressure of variable slopes［J］. Journal of Central South University （Science and Technology）, 2021, 52（11）: 4088 − 4098. （in Chinese with English abstract）
|
| [11] |
邵江,朱宝龙,李涛. 不同滑带角度滑坡作用下隧道衬砌结构受力特征[J]. 西南交通大学学报,2021,56(6):1214 − 1221. [SHAO Jiang,ZHU Baolong,LI Tao. Stress characteristics of tunnel lining structures under landslides with different angles of sliding zone[J]. Journal of Southwest Jiaotong University,2021,56(6):1214 − 1221. (in Chinese with English abstract)]
SHAO Jiang, ZHU Baolong, LI Tao. Stress characteristics of tunnel lining structures under landslides with different angles of sliding zone［J］. Journal of Southwest Jiaotong University, 2021, 56（6）: 1214 − 1221. （in Chinese with English abstract）
|
| [12] |
董建华,颉永斌,李建军,等. 洞口段浅埋偏压隧道新型防护结构及其简化计算方法[J]. 中国公路学报,2018,31(10):339 − 349. [DONG Jianhua,XIE Yongbin,LI Jianjun,et al. New protective structure for shallow-buried bias tunnel at portal section and its simplified calculation method[J]. China Journal of Highway and Transport,2018,31(10):339 − 349. (in Chinese with English abstract)] DOI: 10.3969/j.issn.1001-7372.2018.10.034
DONG Jianhua, XIE Yongbin, LI Jianjun, et al. New protective structure for shallow-buried bias tunnel at portal section and its simplified calculation method［J］. China Journal of Highway and Transport, 2018, 31（10）: 339 − 349. （in Chinese with English abstract） DOI: 10.3969/j.issn.1001-7372.2018.10.034
|
| [13] |
LI Biao,DING Quanfu,XU Nuwen,et al. Characteristics of microseismic b-value associated with rock mass large deformation in underground powerhouse Caverns at different stress levels[J]. Journal of Central South University,2022,29(2):693 − 711. DOI: 10.1007/s11771-022-4946-4
|
| [14] |
MA Lin. Analysis of shallow bias tunnel influence factors in mountain area[J]. International Congress of Mathematicans,2015.
|
| [15] |
孔超,张俊儒,王海彦,等. 深埋软岩大变形隧道支护变形特征及承载机理研究[J]. 中国铁道科学,2021,42(6):103 − 111. [KONG Chao,ZHANG Junru,WANG Haiyan,et al. Study on deformation characteristics and bearing mechanism of support in large deformation tunnel with deep buried soft rock[J]. China Railway Science,2021,42(6):103 − 111. (in Chinese with English abstract)] DOI: 10.3969/j.issn.1001-4632.2021.06.11
KONG Chao, ZHANG Junru, WANG Haiyan, et al. Study on deformation characteristics and bearing mechanism of support in large deformation tunnel with deep buried soft rock［J］. China Railway Science, 2021, 42（6）: 103 − 111. （in Chinese with English abstract） DOI: 10.3969/j.issn.1001-4632.2021.06.11
|
| [16] |
陈秋雨, 黄璐, 潘虎, 等. 径向让压系统对软岩隧道围岩力学特性影响研究[J]. 水文地质工程地质,2024,51(4):146 − 156. [CHEN Qiuyu, HUANG Lu, PAN Hu, et al. Enhancing mechanical characteristics of soft rock tunnel surrounding rock through radial yield pressure system[J]. Hydrogeology and Engineering Geology,2024,51(4):146 − 156. (in Chinese with English abstract)]
CHEN Qiuyu, HUANG Lu, PAN Hu, et al. Enhancing mechanical characteristics of soft rock tunnel surrounding rock through radial yield pressure system［J］. Hydrogeology and Engineering Geology, 2024, 51（4）: 146 − 156. （in Chinese with English abstract）
|
| [17] |
陈东旭. 新奥法隧道支护结构约束效应及破裂失效模型研究[D]. 阜新:辽宁工程技术大学,2021. [CHEN Dongxu. Study on constraint effect and rupture failure model of new Austrian method tunnel support structure[D]. Fuxin:Liaoning Technical University,2021. (in Chinese with English abstract)]
CHEN Dongxu. Study on constraint effect and rupture failure model of new Austrian method tunnel support structure［D］. Fuxin: Liaoning Technical University, 2021. （in Chinese with English abstract）
|
| [18] |
孙闯,敖云鹤,张家鸣. 弱节理小净距隧道合理净距及围岩稳定性研究[J]. 公路交通科技,2020,37(5):108 − 115. [SUN Chuang,AO Yunhe,ZHANG Jiaming. Study on reasonable clear distance and surrounding rock stability of weak jointed small clear distance tunnel[J]. Journal of Highway and Transportation Research and Development,2020,37(5):108 − 115. (in Chinese with English abstract)]
SUN Chuang, AO Yunhe, ZHANG Jiaming. Study on reasonable clear distance and surrounding rock stability of weak jointed small clear distance tunnel［J］. Journal of Highway and Transportation Research and Development, 2020, 37（5）: 108 − 115. （in Chinese with English abstract）
|
| [19] |
HOEK E,BROWN E T. Practical estimates of rock mass strength[J]. International Journal of Rock Mechanics and Mining Sciences,1997,34(8):1165 − 1186. DOI: 10.1016/S1365-1609(97)80069-X
|
| [20] |
ALEJANO L R,RODRIGUEZ-DONO A,ALONSO E,et al. Ground reaction curves for tunnels excavated in different quality rock masses showing several types of post-failure behaviour[J]. Tunnelling and Underground Space Technology,2009,24(6):689 − 705. DOI: 10.1016/j.tust.2009.07.004
|
Email alert
RSS
DownLoad: