复杂应力环境中隧道大变形特征与形变控制

doi:10.19952/j.cnki.2096-5052.2023.02.08

Hazard Control in Tunnelling and Underground Engineering

2023, Vol. 5

Issue (2): 89-98 DOI: 10.19952/j.cnki.2096-5052.2023.02.08

Research Article

Current Issue | Archive | Adv Search

Large deformation characteristics and deformation control of tunnel in complex stress environment

PEI Chao¹, XIAO Yong¹, ZHU Zhiyong², LIU Yanping¹, YANG Wenbo², ZHAO Liangliang²

1. China Railway Tunnel Group Sanchu Co., Ltd., Shenzhen 518000, Guangdong, China;
2. Key Laboratory of Transportation Tunnel Engineering of Ministry of Education, Southwest Jiaotong University, Chengdu 610031, Sichuan, China

Abstract
Figure/Table
References
Related Citation (15)

Download:

PDF (15148KB)
Export: BibTeX | EndNote (RIS)

Abstract Taking the work area of 3# Transverse Gallery of Zhongyi Tunnel of Lijiang-Shangrila Railway as the engineering background, the large deformation characteristics of parallel adit and main tunnel under different section forms were analyzed by field deformation monitoring. It was found that the large deformation characteristics of metamorphic basalt tunnel with schistosity were obvious under extremely high ground stress environment, and the horizontal convergence was the main deformation around the tunnel. The effectiveness of tunnel section optimization and support reinforcement measures was verified by numerical simulation verification. The results showed that the deformation of tunnel surrounding rock could be reduced by reducing the sudden curvature change of tunnel section and making the tunnel section symmetrical, adding foot-lock anchor bolts and increasing the strength of steel mesh could effectively control tunnel deformation. Under the joint action, more than 65% of the deformation of tunnel surrounding rock could be controlled, reducing the distribution of plastic zones in the large deformation section of the surrounding rock. These measures had a good control effect on the large deformation of the Zhongyi Tunnel which could provide guidance for railway tunnel construction in complex stress environment.

Key words： broken metamorphic basalt large deformation under squeezing section optimization support reinforcement

Received: 08 May 2023 Published: 20 June 2023

ZTFLH:

U25

	Service
	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	PEI Chao
	XIAO Yong
	ZHU Zhiyong
	LIU Yanping
	YANG Wenbo
	ZHAO Liangliang

Cite this article:

PEI Chao,XIAO Yong,ZHU Zhiyong, et al. Large deformation characteristics and deformation control of tunnel in complex stress environment[J]. Hazard Control in Tunnelling and Underground Engineering, 2023, 5(2): 89-98.

URL:

http://tunnel.sdujournals.com/EN/10.19952/j.cnki.2096-5052.2023.02.08 OR http://tunnel.sdujournals.com/EN/Y2023/V5/I2/89

[1]	周艺, 何川, 邹育麟, 等. 破碎千枚岩隧道富水区段施工及支护方法[J]. 公路交通科技, 2013, 30(5): 89-97. ZHOU Yi, HE Chuan, ZOU Yulin, et al. Construction and supporting methods in rich water section of fracture phyllite rock tunnel[J]. Journal of Highway and Transportation Research and Development, 2013, 30(5): 89-97.
[2]	张秋彬, 李俊才, 徐建鹏. 破碎软岩隧道围岩参数反演分析[J]. 公路, 2019, 64(12): 293-297. ZHANG Qiubin, LI Juncai, XU Jianpeng. Back analysis of surrounding rock parameters of broken soft rock tunnel[J]. Highway, 2019, 64(12): 293-297.
[3]	何满潮,景海河,孙晓明. 软岩工程力学[M]. 北京:科学出版社, 2002.
[4]	关宝树,赵勇. 软弱围岩隧道施工技术[M]. 北京:人民交通出版社, 2011.
[5]	李磊,谭忠盛,郭小龙,等. 挤压陡倾千枚岩地层小净距隧道大变形研究[J]. 岩石力学与工程学报, 2019, 38(2): 276-286. LI Lei, TAN Zhongsheng, GUO Xiaolong, et al. Study on large deformation of small clear distance tunnel in squeezed steep phyllite stratum[J]. Chinese Journal of Rock Mechanics and Engineering, 2019, 38(2): 276-286.
[6]	朱浩波,粟威. 高速铁路隧道围岩变形影响因素分析[J]. 土木工程学报, 2015, 48(增刊1): 306-310. ZHU Haobo, SU Wei. Analysis of tunnel deformation infl uence factors based on high-speed railway tunnels[J]. China Civil Engineering Journal, 2015, 48(Suppl.1): 306-310.
[7]	KIMURA F, OKABAYASHI N, KAWAMOTO T. Tunnelling through squeezing rock in two large fault zones of the Enasan Tunnel II[J]. Rock Mechanics and Rock Engineering, 1987, 20(3): 151-166.
[8]	杨木高. 木寨岭隧道大变形控制技术[J]. 现代隧道技术, 2019, 56(2): 175-181. YANG Mugao. Large deformation control techniques for the Muzhailing Tunnel[J]. Modern Tunnelling Technology, 2019, 56(2): 175-181.
[9]	SUN X M, ZHAO C W, TAO Z G, et al. Failure mechanism and control technology of large deformation forMuzhailing Tunnel in stratified rock masses[J]. Bulletin of Engineering Geology and the Environment, 2021, 80(6): 4731-4750.
[10]	吕显福, 赵占群, 魏星星. 高地应力软岩隧道大变形机理及控制措施探讨: 以木寨岭隧道为例[J]. 现代隧道技术, 2016, 53(6): 227-231. LÜ Xianfu, ZHAO Zhanqun, WEI Xingxing. Discussion of the large deformation mechanism and control measures for a soft rock tunnel under high ground stress: a case study of the muzhailing tunnel[J]. Modern Tunnelling Technology, 2016, 53(6): 227-231.
[11]	王福善. 木寨岭隧道极高地应力软岩大变形控制技术[J]. 隧道与地下工程灾害防治, 2020, 2(4): 65-73. WANG Fushan. Large deformation control technology of soft rock with extremely high geostress in Muzhailing Tunnel[J]. Hazard Control in Tunnelling and Underground Engineering, 2020, 2(4): 65-73.
[12]	LIU Z C, LI W J, ZHANG S M, et al. Synthetical analysis on monitoring of Wushaoling Railway Tunnel[J]. Tunnelling and Underground Space Technology, 2006, 21(3/4): 363-364.
[13]	李国良, 朱永全. 乌鞘岭隧道高地应力软弱围岩大变形控制技术[J]. 铁道工程学报, 2008, 25(3): 54-59. LI Guoliang, ZHU Yongquan. Control technology for large deformation of highland stressed weak rock in Wushaoling Tunnel[J]. Journal of Railway Engineering Society, 2008, 25(3): 54-59.
[14]	吴发展, 傅政. 同寨隧道进口变形控制技术研究[J]. 铁道工程学报, 2014, 31(3): 87-90. WU Fazhan, FU Zheng. Research on deformation control technology of Tongzhai Tunnel entrance[J]. Journal of Railway Engineering Society, 2014, 31(3): 87-90.
[15]	姬延波. 软岩大变形隧道二次衬砌混凝土回填量控制研究[J]. 隧道建设, 2013, 33(8):664-667. JI Yanbo. Study on control of concrete backfilling amount of secondary lining of large-deformation soft-rock tunnels[J]. Tunnel Construction, 2013, 33(8): 664-667.
[16]	韩现民, 孙明磊. 雁门关隧道挤压性围岩变形控制技术[J]. 现代隧道技术, 2017, 54(3): 174-180. HAN Xianmin, SUN Minglei. Deformation control techniques for the Yanmenguan Tunnel in squeezing surrounding rocks[J]. Modern Tunnelling Technology, 2017, 54(3): 174-180.
[17]	林达明, 尚彦军, 陈明星, 等. 雁门关隧道大变形突泥段地质结构与力学分析[J]. 岩石力学与工程学报, 2012, 31(增刊1): 2751-2757. LIN Daming, SHANG Yanjun, CHEN Mingxing, et al. Geological structures and mechanical analysis of large-deformation mud bursting section in Yanmenguan Tunnel[J]. Chinese Journal of Rock Mechanics and Engineering, 2012, 31(Suppl.1): 2751-2757.
[18]	许再良, 孙元春. 雁门关铁路隧道挤压变形问题分析[J]. 岩石力学与工程学报, 2014, 33(增刊2):3834-3839. XU Zailiang, SUN Yuanchun. Tunneling in squeezing ground conditions: with a case study of Yanmenguan Railway Tunnel[J]. Chinese Journal of Rock Mechanics and Engineering, 2014, 33(Suppl.2): 3834-3839.
[19]	崔光耀,祁家所,王明胜. 片理化玄武岩隧道围岩大变形控制现场试验研究[J]. 岩土力学, 2018, 39(增刊2): 231-237. CUI Guangyao, QI Jiasuo, WANG Mingsheng. Field test study on large deformation control of surrounding rock of cleaved basalt tunnel[J]. Rock and Soil Mechanics, 2018, 39(Suppl.2): 231-237.
[20]	张广泽,贾哲强,冯君,等.铁路隧道双指标高地应力界定及岩爆大变形分级标准[J].铁道工程学报, 2022, 39(8):53-58. ZHANG Guangze, JIA Zheqiang, FENG Jun, et al. Definition for dual-index high geostress and classification standard for rock burst and large deformation in railway tunnels[J]. Journal of Railway Engineering Society, 2022, 39(8):53-58.