气候变化领域集成服务门户(CCPortal): Experimental and Numerical Analyses of the Thermal Regime of a Traditional Embankment in Permafrost Regions

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DOI	10.1155/2021/7185616
	Experimental and Numerical Analyses of the Thermal Regime of a Traditional Embankment in Permafrost Regions
	Mei, Qihang; Chen, Ji; Zhang, Shouhong; Hou, Xin; Zhao, Jingyi; Wang, Jinchang; Dang, Haiming; Liu, Guojun; Wu, Guilong
通讯作者	Chen, J (通讯作者)，Chinese Acad Sci, State Key Lab Frozen Soil Engn, Beiluhe Observat & Res Stn Frozen Soil Engn & Env, Northwest Inst Ecoenvironm & Resources, Lanzhou 730000, Peoples R China. ; Chen, J (通讯作者)，Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
发表日期	2021
ISSN	1687-8434
EISSN	1687-8442
卷号	2021
英文摘要	Traditional embankment is widely used in the permafrost regions along the Qinghai-Tibet Railway (QTR) because of its simple construction and lower cost. However, this form of embankment has insufficient ability to resist external thermal disturbance. To clarify the thermal characteristics of traditional embankment under climate warming, the ground temperature change process of section K1068 + 750 of the QTR was analysed in this study. Based on the field monitoring data from 2006 to 2019 and the established heat transfer model, the past and future changes of permafrost thermal regime under the embankment were analysed. The results show that the degradation of permafrost under the embankment is faster than that under the undisturbed site due to the combined of embankment construction and climate warming. The sunny-shady slope effect related to embankment orientation makes the distribution of permafrost temperature under embankment asymmetric. In the long term, permafrost degrades both under the undisturbed site and embankment. The continuous degradation of permafrost causes the settlement and deformation of embankment, especially the asymmetric degradation of permafrost on sunny side and shady side will cause longitudinal cracks on the embankment. Therefore, timely application of strengthening measures which can slow down the degradation of permafrost and adjust the uneven ground temperature on the sunny and shady sides under the embankment is of great significance to the safety of the traditional embankment.
关键词	QINGHAI-TIBET RAILWAY CRUSHED-ROCK REVETMENT WARM PERMAFROST SUNNY SLOPES STABILITY SHADY TEMPERATURE THERMOSIPHONS SETTLEMENT INTERLAYER
语种	英语
WOS研究方向	Materials Science
WOS类目	Materials Science, Multidisciplinary
WOS记录号	WOS:000683253900004
来源期刊	ADVANCES IN MATERIALS SCIENCE AND ENGINEERING
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/254234
作者单位	[Mei, Qihang; Chen, Ji; Hou, Xin; Zhao, Jingyi; Liu, Guojun; Wu, Guilong] Chinese Acad Sci, State Key Lab Frozen Soil Engn, Beiluhe Observat & Res Stn Frozen Soil Engn & Env, Northwest Inst Ecoenvironm & Resources, Lanzhou 730000, Peoples R China; [Mei, Qihang; Chen, Ji; Hou, Xin; Zhao, Jingyi] Univ Chinese Acad Sci, Beijing 100049, Peoples R China; [Zhang, Shouhong; Wang, Jinchang; Dang, Haiming] China Railway Qinghai Tibet Grp Co Ltd, Xining 810007, Peoples R China
推荐引用方式 GB/T 7714	Mei, Qihang,Chen, Ji,Zhang, Shouhong,et al. Experimental and Numerical Analyses of the Thermal Regime of a Traditional Embankment in Permafrost Regions[J]. 中国科学院西北生态环境资源研究院,2021,2021.
APA	Mei, Qihang.,Chen, Ji.,Zhang, Shouhong.,Hou, Xin.,Zhao, Jingyi.,...&Wu, Guilong.(2021).Experimental and Numerical Analyses of the Thermal Regime of a Traditional Embankment in Permafrost Regions.ADVANCES IN MATERIALS SCIENCE AND ENGINEERING,2021.
MLA	Mei, Qihang,et al."Experimental and Numerical Analyses of the Thermal Regime of a Traditional Embankment in Permafrost Regions".ADVANCES IN MATERIALS SCIENCE AND ENGINEERING 2021(2021).