气候变化领域集成服务门户(CCPortal): Ground temperature and deformation characteristics of anti-freeze-thaw embankments in permafrost and seasonal frozen ground regions of China

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DOI	10.1016/j.coldregions.2021.103331
	Ground temperature and deformation characteristics of anti-freeze-thaw embankments in permafrost and seasonal frozen ground regions of China
	Tai, Bowen; Wu, Qingbai; Yue, Zurun; Xu, Hongbin
通讯作者	Tai, BW (通讯作者)，Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Frozen Ground Engn, Lanzhou 730000, Peoples R China.
发表日期	2021
ISSN	0165-232X
EISSN	1872-7441
卷号	189
英文摘要	Embankment engineering in cold regions are at risk of seasonal freeze-thaw damage which seriously threatens the safe operation of vehicles. To ensure the long-term stability of embankment engineering in these areas, novel anti-freeze-thaw measures with differential filling materials should be taken. This study first analyzes the thermal-deformation characteristics and effects of two typical railway embankments with differential anti-freezethaw filling materials in permafrost and seasonal frozen ground regions based on ground temperature and deformation monitoring data. Then, on the basis of these results and previous research, the similarities and differences between the thermal-deformation characteristics of different embankments in permafrost and seasonal frozen ground regions are studied. Finally, the study summarizes fundamental principles for anti-freezethaw embankment measures in accordance with frozen ground type. Results demonstrate that: 1) the thaw settlement of permafrost embankments demonstrates persistence and is non-uniform, while the frost heave of embankments in seasonal frozen ground regions demonstrates cold shrinkage and heave delay; 2) understanding the development of the temperature and thickness of the seasonal thawing/freezing layer in time and space is key for preventing freeze-thaw damage in frozen ground regions; 3) the long-term stability of embankments in permafrost regions can be maintained by controlling the quantity of cold entrance and diffusion. For embankments in seasonal frozen ground regions, frost heave may be controlled by changing the property, water content, and temperature of filling materials. These findings will be helpful for better understanding the thermalmechanical characteristics of embankments in different frozen ground regions, and for providing important technical guidance to ensure the operational efficiency of engineering projects.
关键词	HIGH-SPEED RAILWAY 2-PHASE CLOSED THERMOSIPHONS SUNNY-SHADY SLOPES THERMAL-CHARACTERISTICS FIELD EXPERIMENT SUBGRADE LAYER INSULATION HIGHWAY WATER
英文关键词	Thermal-deformation characteristics; Embankment engineering; Permafrost; Seasonal frozen ground
语种	英语
WOS研究方向	Engineering ; Geology
WOS类目	Engineering, Environmental ; Engineering, Civil ; Geosciences, Multidisciplinary
WOS记录号	WOS:000732708600003
来源期刊	COLD REGIONS SCIENCE AND 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/254480
作者单位	[Tai, Bowen; Wu, Qingbai] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Frozen Ground Engn, Lanzhou 730000, Peoples R China; [Yue, Zurun] Shijiazhuang Tiedao Univ, State Key Lab Mech Behav & Syst Safety Traff Engn, Shijiazhuang 050043, Hebei, Peoples R China; [Xu, Hongbin] Shijiazhuang Tiedao Univ, Key Lab Hlth Monitoring & Control Large Struct He, Shijiazhuang 050043, Hebei, Peoples R China
推荐引用方式 GB/T 7714	Tai, Bowen,Wu, Qingbai,Yue, Zurun,et al. Ground temperature and deformation characteristics of anti-freeze-thaw embankments in permafrost and seasonal frozen ground regions of China[J]. 中国科学院西北生态环境资源研究院,2021,189.
APA	Tai, Bowen,Wu, Qingbai,Yue, Zurun,&Xu, Hongbin.(2021).Ground temperature and deformation characteristics of anti-freeze-thaw embankments in permafrost and seasonal frozen ground regions of China.COLD REGIONS SCIENCE AND TECHNOLOGY,189.
MLA	Tai, Bowen,et al."Ground temperature and deformation characteristics of anti-freeze-thaw embankments in permafrost and seasonal frozen ground regions of China".COLD REGIONS SCIENCE AND TECHNOLOGY 189(2021).