Model test research on deformation and failure of box-shaped prefabricated inverted arch structure of highway tunnel

doi:10.3785/j.issn.1008-973X.2024.07.011

Journal of ZheJiang University (Engineering Science)

2024, Vol. 58

Issue (7): 1417-1426 DOI: 10.3785/j.issn.1008-973X.2024.07.011

Model test research on deformation and failure of box-shaped prefabricated inverted arch structure of highway tunnel

Yingchao WANG1,2(

),Hang XU2,Ying HAO2,Xin ZHOU2,Jingtang LIU3,Yuanhai LI1

1. State Key Laboratory of Intelligent Construction and Healthy Operation and Maintenance of Deep Underground Engineering, China University of Mining and Technology, Xuzhou 221116, China
2. School of Mechanics and Civil Engineering, China University of Mining and Technology, Xuzhou 221116, China
3. Gansu Province Transportation Planning Survey and Design Institute Limited Company, Lanzhou 730030, China

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Abstract

A new box-shaped prefabricated inverted arch structure was designed. The mechanical characteristics and failure mode of the box-shaped prefabricated inverted arch were studied by indoor physical model test combined with digital photographic measurement technology, and the stress law of the lining and invert were studied by numerical simulation in actual working conditions. Results show that the tensile effect generated under vertical load is the main reason for the crack generation and development of the prefabricated inverted arch, while the horizontal pressure has no obvious effect on the crack development of the prefabricated inverted arch. The joints of prefabricated blocks and the corners of columns in each prefabricated block are the weakest parts of the prefabricated inverted arch structure, and the joints and corners affect the safety of the prefabricated inverted arch structure. The displacement of the prefabricated inverted arch is symmetrically distributed with respect to the central axis, and the displacement is the middle prefabricated block, the left 1 prefabricated block, the left 2 prefabricated block and the left 3 prefabricated block in order from large to small. The failure of the box-shaped prefabricated inverted arch can be divided into 3 stages: loading compaction, elastoplastic deformation and plastic failure. When acting with the lining, the upper part of the inverted arch is mainly subjected to tensile stress, while the lower part is mainly subjected to pressure. Experimental results show that the self-designed inverted arch structure has good mechanical performance.

Key words： highway tunnel box-shaped prefabricated inverted arch indoor model test inverted arch crack inverted arch joint

Received: 30 June 2023 Published: 01 July 2024

CLC:

TU 94+2

Fund: 国家重点研发计划课题（2022YFC3003304）；国家自然科学基金资助项目（42272313）；甘肃省重点研发计划项目（21YF1GA381）；甘肃省交通运输厅科技项目（2021-09）；中国铁路上海局集团有限公司科研项目（2022178）.

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	Yingchao WANG
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	Ying HAO
	Xin ZHOU
	Jingtang LIU
	Yuanhai LI

Cite this article:

Yingchao WANG,Hang XU,Ying HAO,Xin ZHOU,Jingtang LIU,Yuanhai LI. Model test research on deformation and failure of box-shaped prefabricated inverted arch structure of highway tunnel. Journal of ZheJiang University (Engineering Science), 2024, 58(7): 1417-1426.

URL:

https://www.zjujournals.com/eng/10.3785/j.issn.1008-973X.2024.07.011 OR https://www.zjujournals.com/eng/Y2024/V58/I7/1417

公路隧道箱型预制仰拱变形破坏的模型试验研究

基于自主设计的新型箱型预制仰拱结构，采用室内物理模型试验，结合数字照相量测技术，研究该箱型预制仰拱的力学特性及破坏模式，通过数值模拟研究实际工况中衬砌与仰拱共同作用的受力规律. 结果表明：竖向荷载作用下产生的拉张效应是预制仰拱裂纹产生及发展的主要原因，水平压力对预制仰拱的裂纹发展作用不明显. 预制块接缝处以及各个预制块中柱转角处是预制仰拱结构的最薄弱部位，接缝处和转角处影响预制仰拱结构的安全. 预制仰拱位移变化关于中轴部位呈对称分布，位移由大到小依次为中间预制块、左1预制块、左2预制块、左3预制块. 箱型预制仰拱破坏可以分为加载压密、弹塑性变形和塑性破坏3个阶段. 当仰拱与衬砌共同作用时，仰拱的上部主要承受拉应力，仰拱的下部主要承受压应力. 试验结果表明，所设计仰拱结构具有良好的受力性能.

关键词： 公路隧道, 箱型预制仰拱, 室内模型试验, 仰拱裂隙, 仰拱接头

Fig.1 Sectional dimensions of prefabricated inverted arch

Fig.2 Pouring process diagram of prefabricated inverted arch

Fig.3 Loading test diagram of prefabricated inverted arch

Fig.4 Flowchart for loading test of prefabricated inverted arch

Fig.5 Digital photographic measurement software system

Fig.6 Process diagram of digital photogrammetric measurement for prefabricated inverted arch

Fig.7 Grid division of prefabricated inverted arch

Fig.8 Parameter setting interface for image analysis

Fig.9 Damage and crack development of prefabricated inverted arch during loading

Fig.10 Displacement nephogram evolution process of prefabricated inverted arch

Fig.11 Trend of displacement variation at bottom of inverted arch

Fig.12 Displacement variation diagram of inverted arch

Fig.13 Relative displacement and sketch of groove position of prefabricated inverted arch joint

Fig.14 Relative displacement curve of measuring points

Tab.1 Mechanical parameters of surrounding rock and supporting structure

Fig.15 Highway tunnel model

Fig.16 Excavation diagram of cross diaphragm method

Fig.17 Nephogram of tunnel supporting structure


[1]	王明年, 翁汉民, 李志业隧道仰拱的力学行为研究[J]. 岩土工程学报, 1996, 18 (1): 46- 53 WANG Mingnian WENG Hanmin, LI Zhiye. Study on the mechanic behavior of tunnel invert[J]. Chinese Journal of Geotechnical Engineering, 1996, 18 (1): 46- 53 doi: 10.3321/j.issn:1000-4548.1996.01.007

[2]	FANG Y, DING K Mechanical effects analysis of inverted arch[J]. IOP Conference Series: Materials Science and Engineering, 2019, 490: 032026 doi: 10.1088/1757-899X/490/3/032026

[3]	唐伟高速铁路单线盾构隧道装配式隧底回填结构设计研究[J]. 铁道标准设计, 2020, 64 (11): 99- 103 TANG Wei Research on fabricated bottom backfill structure design of single line shield tunnel in high-speed railway[J]. Railway Standard Design, 2020, 64 (11): 99- 103

[4]	陈敬军. 矿山法施工的铁路隧道装配式衬砌力学特性研究[D]. 成都: 西南交通大学, 2005. CHEN Jingjun. Study on the mechanical characteristic of the fabricated railway tunnel lining constructed with mining method [D]. Chengdu: Southwest Jiaotong University, 2005.

[5]	周佳媚, 高波, 李志业 TBM施工隧道仰拱预制块的力学特性研究[J]. 岩土力学, 2004, 25 (12): 1973- 1976 ZHOU Jiamei, GAO Bo, LI Zhiye Study of mechanical characteristics of precast block of inverted arch for TBM construction tunnel[J]. Rock and Soil Mechanics, 2004, 25 (12): 1973- 1976 doi: 10.3969/j.issn.1000-7598.2004.12.023

[6]	周佳媚, 李志业, 高波 TBM施工隧道仰拱预制块的受力分析[J]. 中国铁道科学, 2004, 25 (3): 32- 35 ZHOU Jiamei, LI Zhiye, GAO Bo Mechanic analysis of invert prefabricate in TBM construction tunnel[J]. China Railway Science, 2004, 25 (3): 32- 35 doi: 10.3321/j.issn:1001-4632.2004.03.007

[7]	符亚鹏敞开式TBM施工铁路隧道仰拱预制块关键设计参数研究[J]. 铁道标准设计, 2016, 60 (8): 79- 83 FU Yapeng Study on key design parameters of prefabricated invert segment for open type TBM railway tunnel construction[J]. Railway Standard Design, 2016, 60 (8): 79- 83

[8]	梁晋平六边形混凝土预制管片衬砌设计[J]. 水利水电技术, 2011, 42 (6): 15- 17 LIANG Jinping Design of hexagon-precast concrete lining segment[J]. Water Resources and Hydropower Engineering, 2011, 42 (6): 15- 17

[9]	张鹏隧道盾构管片衬砌参数的设计[J]. 山西建筑, 2017, 43 (31): 163- 164 ZHANG Peng The design of shield tunnel segment lining parameters[J]. Shanxi Architecture, 2017, 43 (31): 163- 164 doi: 10.3969/j.issn.1009-6825.2017.31.092

[10]	张斌. 山岭高铁隧道预制装配式轨下结构设计选型及优化研究[D]. 北京: 中国铁道科学研究院, 2019. ZHANG Bin. Design and optimization of prefabricated fabricated rail structure for mountain high speed railway tunnel [D]. Beijing: China Academy of Railway Sciences, 2019.

[11]	王明年, 李志业, 魏龙海. 隧道及地下铁道预制化技术[M]. 成都: 西南交通大学出版社, 2009.

[12]	郇星超. 公路隧道装配式衬砌结构研究[D]. 西安: 长安大学, 2013. HUAN Xingchao. Prefabricated lining structure research of highway tunnel [D]. Xi’an: Chang’an University, 2013.

[13]	严义招. 高速铁路大跨度双线隧道矿山法施工的装配式衬砌力学特性研究[D]. 成都: 西南交通大学, 2008. YAN Yizhao. Research on mechanical characteristic of fabricated lining of high speed railway longspan two-line tunnel constructed with mining method [D]. Chengdu: Southwest Jiaotong University, 2008.

[14]	时亚昕. 隧道仰拱快速施工技术的现场试验研究[D]. 成都: 西南交通大学, 2004. SHI Yaxin. The in-situ experimental study about fast-speed construction technology of tunnel invert [D]. Chengdu: Southwest Jiaotong University, 2004.

[15]	王武现. 隧道仰拱(铺底)预制板快速施工技术研究[D]. 上海: 上海交通大学, 2007. WANG Wuxian. Research on the fast-speed construction technology of precast-slab for tunnel invert [D]. Shanghai: Shanghai Jiao Tong University, 2007.

[16]	王士民, 陈兵, 王先明, 等盾构隧道二次衬砌合理施作时机模型试验研究[J]. 岩土工程学报, 2020, 42 (5): 882- 891 WANG Shimin, CHEN Bing, WANG Xianming, et al Model tests on reasonable construction time of secondary lining of shield tunnel[J]. Chinese Journal of Geotechnical Engineering, 2020, 42 (5): 882- 891 doi: 10.11779/CJGE202005010

[17]	何川, 唐志成, 汪波, 等应力场对缺陷隧道承载力影响的模型试验研究[J]. 地下空间与工程学报, 2009, 5 (2): 227- 234 HE Chuan, TANG Zhicheng, WANG Bo, et al Study on effects of stress field for bearing capacity in defect tunnel[J]. Chinese Journal of Underground Space and Engineering, 2009, 5 (2): 227- 234 doi: 10.3969/j.issn.1673-0836.2009.02.005

[18]	唐志成, 何川, 林刚地铁盾构隧道管片结构力学行为模型试验研究[J]. 岩土工程学报, 2005, 27 (1): 85- 89 TANG Zhicheng, HE Chuan, LIN Gang Study on mechanical behavior of segment of shield tunnel of metro with model test[J]. Chinese Journal of Geotechnical Engineering, 2005, 27 (1): 85- 89 doi: 10.3321/j.issn:1000-4548.2005.01.014

[19]	兰宇. 高速公路隧道维护加固对策的模型试验研究[D]. 成都: 西南交通大学, 2005. LAN Yu. Model test of expressway tunnel for maintenance and reinforcement strategies [D]. Chengdu: Southwest Jiaotong University, 2005.

[20]	李元海, 靖洪文, 刘刚, 等数字照相量测在岩石隧道模型试验中的应用研究[J]. 岩石力学与工程学报, 2007, 26 (8): 1684- 1690 LI Yuanhai, JING Hongwen, LIU Gang, et al Study on application of digital close range photogrammetry to model test of tunnel in jointed rock masses[J]. Chinese Journal of Rock Mechanics and Engineering, 2007, 26 (8): 1684- 1690 doi: 10.3321/j.issn:1000-6915.2007.08.020

[21]	刘德柱. 基于数字照相的软弱缓倾层状隧道围岩稳定性试验研究[D]. 徐州: 中国矿业大学, 2021. LIU Dezhu. Experimental investigation on the stability of the surrounding rock of a soft and slowly inclined layered tunnel based on digital photogrammetry [D]. Xuzhou: China University of Mining and Technology, 2021.

[22]	刘泾堂, 王迎超, 邱成虎, 等公路隧道装配式仰拱结构形式优化设计[J]. 河海大学学报: 自然科学版, 2023, 51 (4): 55- 64 LIU Jingtang, WANG Yingchao, QIU Chenghu, et al Optimal design of prefabricated inverted arch structure for highway tunnels[J]. Journal of Hohai University: Natural Sciences, 2023, 51 (4): 55- 64

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