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DOI	10.1016/j.trgeo.2021.100555
	Preliminary identification of the failure mode of shallow tunnels in soil subjected to frost heave: Model test and numerical simulation
	Yu, Yuan; Ling, Xianzhang; Tang, Liang; Han, Xiao; Geng, Lin; Wei, Shaowei
通讯作者	Tang, L (通讯作者)，Harbin Inst Technol, Sch Civil Engn, Harbin 150090, Peoples R China. ; Tang, L (通讯作者)，Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Frozen Soil Engn, Lanzhou 730000, Peoples R China.
发表日期	2021
ISSN	2214-3912
卷号	29
英文摘要	Freezing action can significantly affect the lining capacity of shallow tunnels in soil. Thus, it is necessary to identify the failure mode of a shallow tunnel in soil subjected to frost heave. Therefore, a thermo-hydro-mechanical coupled finite element (FE) model is established and verified via a model test in the laboratory, in which the similarity ratio of the length is 25. Then, specific consideration is given to the failure mode of the lining structure. The influence of the burial depth on the temperature field and soil-lining interaction are investigated. Meanwhile, the failure mode of the lining subjected to frost heave is discussed. Generally, under the influence of freezing, the normal soil pressure of a shallower tunnel changes more dramatically than that of a deeper tunnel. For the shallower cases (burial depth <= 3 m in reality), the outer face of the crown and the inner face of the sidewall are at risk of tensile failure. For the deeper cases (burial depth > 3 m in reality), the outer face of the sidewall and the inner face of the crown are at risk of compression failure.
关键词	COLD-REGION TUNNEL INSULATION LAYER FROZEN WATER CONVECTION MECHANISM TRANSPORT FORCE ROCK
英文关键词	Shallow tunnel in cold region; Coupled thermo-hydro-mechanical model; Model test; Failure mode; Burial depth
语种	英语
WOS研究方向	Engineering
WOS类目	Engineering, Civil ; Engineering, Geological
WOS记录号	WOS:000670365800005
来源期刊	TRANSPORTATION GEOTECHNICS
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/254379
作者单位	[Yu, Yuan; Ling, Xianzhang; Tang, Liang; Han, Xiao] Harbin Inst Technol, Sch Civil Engn, Harbin 150090, Peoples R China; [Yu, Yuan; Geng, Lin] State Key Lab Geomech & Deep Underground Engn, Xuzhou 221008, Jiangsu, Peoples R China; [Tang, Liang] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Frozen Soil Engn, Lanzhou 730000, Peoples R China; [Geng, Lin; Wei, Shaowei] China Acad Railway Sci Corp, Railway Engn Res Inst, Beijing 100081, Peoples R China; [Geng, Lin; Wei, Shaowei] Beijing Tieke Special Engn Technol Corp Ltd, Beijing 100081, Peoples R China
推荐引用方式 GB/T 7714	Yu, Yuan,Ling, Xianzhang,Tang, Liang,et al. Preliminary identification of the failure mode of shallow tunnels in soil subjected to frost heave: Model test and numerical simulation[J]. 中国科学院西北生态环境资源研究院,2021,29.
APA	Yu, Yuan,Ling, Xianzhang,Tang, Liang,Han, Xiao,Geng, Lin,&Wei, Shaowei.(2021).Preliminary identification of the failure mode of shallow tunnels in soil subjected to frost heave: Model test and numerical simulation.TRANSPORTATION GEOTECHNICS,29.
MLA	Yu, Yuan,et al."Preliminary identification of the failure mode of shallow tunnels in soil subjected to frost heave: Model test and numerical simulation".TRANSPORTATION GEOTECHNICS 29(2021).