Numerical analysis for the ventilated embankment with thermal insulation layer in Qing-Tibetan railway
文献类型：期刊论文
| 作者 | Liu, ZQ; Lai, YM |
| 刊名 | COLD REGIONS SCIENCE AND TECHNOLOGY
 |
| 出版日期 | 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 |
| WOS记录号 | WOS:000233077300001 |
| 出版者 | ELSEVIER SCIENCE BV |
| URI标识 | http://www.irgrid.ac.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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来源：寒区旱区环境与工程研究所
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