气候变化领域集成服务门户(CCPortal): A full-scale field experiment to evaluate the cooling performance of a novel composite embankment in permafrost regions

CCPortal

DOI	10.1016/j.ijheatmasstransfer.2015.12.067
	A full-scale field experiment to evaluate the cooling performance of a novel composite embankment in permafrost regions
	Zhang, Mingyi; Lai, Yuanming; Wu, Qinghai; Yu, Qihao; Zhao, Tao; Pei, Wansheng; Zhang, Jianming
发表日期	2016
ISSN	0017-9310
EISSN	1879-2189
起始页码	1047
结束页码	1056
卷号	95
英文摘要	High-grade highways designed for large traffic volumes need wider embankments than railways and low-grade highways. In permafrost regions, a wide and dark-colored asphalt pavement surface of high-grade highways may destabilize underlying permafrost if the embankment is insufficiently cooled, especially under a warming climate. However, the embankments with single commonly cooling technique, e.g. two-phase closed thermosyphon (TPCT) embankment and crushed-rock embankment cannot satisfy the cooling requirement of high-grade highways because of their limited cooling capacities. Here, we use a full-scale field experiment of a separated high-grade highway with double lanes each direction at Beiluhe in the Qinghai-Tibet Plateau to investigate the thermal characteristics of a novel composite embankment combined with L-shaped TPCTs, crushed-rock revetments and insulation, as well as an unprotected embankment (as a control). Experimental results indicate that the composite embankment can effectively cool the underlying permafrost and raise the permafrost table under the separated high-grade highway with a wide and dark-colored pavement, whereas the unprotected embankment cannot. This composite embankment should be considered for application to separated high-grade highways with double lanes each direction in permafrost regions, such as the planned Qinghai-Tibet Expressway. (C) 2016 Elsevier Ltd. All rights reserved.
英文关键词	Field experiment; Cooling performance; Composite embankment; Unprotected embankment; High-grade highway; Permafrost region
语种	英语
WOS研究方向	Thermodynamics ; Engineering ; Mechanics
WOS类目	Thermodynamics ; Engineering, Mechanical ; Mechanics
WOS关键词	2-PHASE CLOSED THERMOSIPHON ; QINGHAI-TIBET HIGHWAY ; RIPPED-ROCK REVETMENT ; IN-SITU ; RAILWAY ; PROTECTION ; INSULATION
WOS记录号	WOS:000370111200098
来源期刊	INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/239490
作者单位	[Zhang, Mingyi; Lai, Yuanming; Wu, Qinghai; Yu, Qihao; Zhao, Tao; Pei, Wansheng; Zhang, Jianming] Chinese Acad Sci, State Key Lab Frozen Soil Engn, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Mingyi,Lai, Yuanming,Wu, Qinghai,et al. A full-scale field experiment to evaluate the cooling performance of a novel composite embankment in permafrost regions[J],2016,95.
APA	Zhang, Mingyi.,Lai, Yuanming.,Wu, Qinghai.,Yu, Qihao.,Zhao, Tao.,...&Zhang, Jianming.(2016).A full-scale field experiment to evaluate the cooling performance of a novel composite embankment in permafrost regions.INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER,95.
MLA	Zhang, Mingyi,et al."A full-scale field experiment to evaluate the cooling performance of a novel composite embankment in permafrost regions".INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER 95(2016).