气候变化领域集成服务门户(CCPortal): Thermal control performance of the embankment with L-shaped thermosyphons and insulations along the Gonghe-Yushu Highway

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DOI	10.1016/j.coldregions.2021.103428
	Thermal control performance of the embankment with L-shaped thermosyphons and insulations along the Gonghe-Yushu Highway
	Pei, Wansheng; Zhang, Mingyi; Yan, Zhongrui; Lai, Yuanming; Lu, Jianguo; Dai, Yanjun
通讯作者	Zhang, MY (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	2022
ISSN	0165-232X
EISSN	1872-7441
卷号	194
英文摘要	In permafrost regions, the climate warming and construction of engineering will change the energy exchange process between the original ground surface and the ambient, and warm the permafrost stratum. The degradation of permafrost stratum will endanger the stability of the infrastructures built on it. To protect permafrost from degradation, the embankment combined with L-shaped thermosyhons and insulations was adopted in the construction of the first high-grade highway in permafrost regions of the Qinghai-Tibet Plateau, namely the GongheYushu Highway. In this study, we field investigated the energy budget process of the embankment. The results indicated that the embankment can efficiently cool the warm permafrost stratum under the embankment in cold seasons. The net annual energy budget can reach approximately 1117 MJ. The composite embankment can cool the deep ground (13.0 m below the pavement layer) with the average speed of about 0.02 degrees C/year in the first few years. Meanwhile, it can adjust the asymmetric geotemperature distributions under two slopes. Thus, the longterm service performance of the embankment will be significantly improved. It is expected that the research can supply support for the design and construction of other high-grade highways in permafrost regions by reasonably using natural cool energy to protect permafrost foundation.
关键词	2-PHASE CLOSED THERMOSIPHON QINGHAI-TIBET HIGHWAY COOLING CHARACTERISTICS PERMAFROST REGIONS PAVEMENT
英文关键词	Permafrost ground; High-grade highway; L-shaped thermosyphon; Thermal exchange; Qinghai-Tibet Plateau
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:000750033000003
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/254091
作者单位	[Pei, Wansheng; Zhang, Mingyi; Lai, Yuanming] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Frozen Soil Engn, Lanzhou 730000, Peoples R China; [Pei, Wansheng; Zhang, Mingyi; Lai, Yuanming] Univ Chinese Acad Sci, Beijing 100049, Peoples R China; [Yan, Zhongrui; Lu, Jianguo] Southwest Petr Univ, Sch Civil Engn & Geomat, Chengdu 610500, Peoples R China; [Dai, Yanjun] Shanghai Jiao Tong Univ, Res Ctr Solar Energy & Refrigerat, Shanghai 200240, Peoples R China
推荐引用方式 GB/T 7714	Pei, Wansheng,Zhang, Mingyi,Yan, Zhongrui,et al. Thermal control performance of the embankment with L-shaped thermosyphons and insulations along the Gonghe-Yushu Highway[J]. 中国科学院西北生态环境资源研究院,2022,194.
APA	Pei, Wansheng,Zhang, Mingyi,Yan, Zhongrui,Lai, Yuanming,Lu, Jianguo,&Dai, Yanjun.(2022).Thermal control performance of the embankment with L-shaped thermosyphons and insulations along the Gonghe-Yushu Highway.COLD REGIONS SCIENCE AND TECHNOLOGY,194.
MLA	Pei, Wansheng,et al."Thermal control performance of the embankment with L-shaped thermosyphons and insulations along the Gonghe-Yushu Highway".COLD REGIONS SCIENCE AND TECHNOLOGY 194(2022).