气候变化领域集成服务门户(CCPortal): Investigation of the soil-lining interaction at a tunnel entrance during freeze-thaw cycling: Model testing and semi-empirical modeling

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DOI	10.1016/j.tust.2021.104028
	Investigation of the soil-lining interaction at a tunnel entrance during freeze-thaw cycling: Model testing and semi-empirical modeling
	Yu, Yuan; Tang, Liang; Ling, Xianzhang; Geng, Lin; Wei, Shaowei; Zhou, Guoqing
通讯作者	Tang, L (通讯作者)，Harbin Inst Technol, Sch Civil Engn, Harbin 150090, Heilongjiang, Peoples R China.
发表日期	2021
ISSN	0886-7798
EISSN	1878-4364
卷号	115
英文摘要	Periodic freeze-thaw cycling can significantly reduce the bearing capacity of mountain tunnel linings. In this study, a model test is carried out to research the lining stress characteristics and the freezing depth of tunnel entrances in cold regions. Then, specific consideration is given to the freezing and thawing depths, the frost heaving pressure, and the internal forces around the lining. Generally, the results show that the occurrence times of the freezing and thawing depths at different positions are similar, but the various trends are different. Moreover, the frost heaving pressure at point 4 (sidewall) has the earliest occurrence time, the fastest rate of increase, and the most prolonged increase duration. Under the influence of the frost heaving pressure, the maximum axial force position shifts from the knee to the spandrel, and the sidewall is in tension. Furthermore, the periodic change in the frost heaving pressure may induce a permanent deformation at the tunnel entrance lining, especially at the position between the knee and the sidewall. Finally, based on the conformal transformation and complex variable method, a semi-empirical model is developed to predict the distribution of internal forces around the non-circular shallow tunnel subjected to frost heaving. Overall, this study helps to estimate the soil-lining interaction at a tunnel entrance during freeze-thaw cycling.
关键词	LINED CIRCULAR TUNNEL COLD-REGION TUNNEL COMPLEX VARIABLE SOLUTION BACK-ANALYSIS NONCIRCULAR TUNNELS NONLINEAR-ANALYSIS INSULATION LAYER ELASTIC ANALYSIS WATER-PRESSURE GREAT DEPTH
英文关键词	Mountain tunnel in cold regions; Internal forces distribution; Frost heaving pressure; Freezing and thawing depths; Simplified semi-empirical model
语种	英语
WOS研究方向	Construction & Building Technology ; Engineering
WOS类目	Construction & Building Technology ; Engineering, Civil
WOS记录号	WOS:000675893100004
来源期刊	TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY
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/254507
作者单位	[Yu, Yuan; Tang, Liang; Ling, Xianzhang] Harbin Inst Technol, Sch Civil Engn, Harbin 150090, Heilongjiang, Peoples R China; [Yu, Yuan; Tang, Liang; Ling, Xianzhang] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Frozen Soil Engn, Lanzhou 730000, Gansu, Peoples R China; [Geng, Lin; Wei, Shaowei] China Acad Railway Sci Corp Ltd, Railway Engn Res Inst, Beijing 100081, Peoples R China; [Zhou, Guoqing] China Univ Min & Technol, State Key Lab Geomech & Deep Underground Engn, Xuzhou 221116, Jiangsu, Peoples R China
推荐引用方式 GB/T 7714	Yu, Yuan,Tang, Liang,Ling, Xianzhang,et al. Investigation of the soil-lining interaction at a tunnel entrance during freeze-thaw cycling: Model testing and semi-empirical modeling[J]. 中国科学院西北生态环境资源研究院,2021,115.
APA	Yu, Yuan,Tang, Liang,Ling, Xianzhang,Geng, Lin,Wei, Shaowei,&Zhou, Guoqing.(2021).Investigation of the soil-lining interaction at a tunnel entrance during freeze-thaw cycling: Model testing and semi-empirical modeling.TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY,115.
MLA	Yu, Yuan,et al."Investigation of the soil-lining interaction at a tunnel entrance during freeze-thaw cycling: Model testing and semi-empirical modeling".TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY 115(2021).