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	Numerical analysis for the ventilated embankment with thermal insulation layer in Qing-Tibetan railway
	Liu, ZQ; Lai, YM
刊名	COLD REGIONS SCIENCE AND TECHNOLOGY
	2005-11-01
卷号	42期号:3页码:177-184
关键词	ventilated embankment thermal insulation layer frozen soils three-dimensional temperature fields heat transfer phase change
ISSN号	0165-232X
DOI	10.1016/j.coldregions.2005.01.003
通讯作者	Lai, YM()
英文摘要	The ventilated embankment is widely used in the Qinghai-Tibet railway. In order to decrease heat transfer from embankment downwards to ground when the height of embankment is relatively high, absorbing more heat in warm season, the ventilated embankment with thermal insulation layer is proposed. In this paper, a piece of heat insulator, 20 mm. thick, is paved on a plane away 20 cm from the upper surface of ducts. Using finite element method, formulated for non-linear heat conduction, allows the solution of practically any ground freezing problem, the temperature distributions of the ventilated embankment with and without thermal insulation layers are calculated, respectively, on condition that the mean annual air temperature in Tibetan Plateau will be warmed up by 2.6 degrees C and the mean annual temperature at the native surface is about -1.0 degrees C in the future 50 years. The conclusions are given in term of the analyzing and comparing results. (c) 2005 Elsevier B.V. All rights reserved.
收录类别	SCI
WOS关键词	SOLIDIFICATION PROBLEMS
WOS研究方向	Engineering ; Geology
WOS类目	Engineering, Environmental ; Engineering, Civil ; Geosciences, Multidisciplinary
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000233077300001
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2555650
专题	寒区旱区环境与工程研究所
通讯作者	Lai, YM
作者单位	1.Chinese Acad Sci, State Key Lab Frozen Soil Engn, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China 2.Lanzhou JiaoTong Univ, Lanzhou 730070, Peoples R China
推荐引用方式 GB/T 7714	Liu, ZQ,Lai, YM. Numerical analysis for the ventilated embankment with thermal insulation layer in Qing-Tibetan railway[J]. COLD REGIONS SCIENCE AND TECHNOLOGY,2005,42(3):177-184.
APA	Liu, ZQ,&Lai, YM.(2005).Numerical analysis for the ventilated embankment with thermal insulation layer in Qing-Tibetan railway.COLD REGIONS SCIENCE AND TECHNOLOGY,42(3),177-184.
MLA	Liu, ZQ,et al."Numerical analysis for the ventilated embankment with thermal insulation layer in Qing-Tibetan railway".COLD REGIONS SCIENCE AND TECHNOLOGY 42.3(2005):177-184.

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