Adjusting temperature distribution under the south and north slopes of embankment in permafrost regions by the ripped-rock revetment
文献类型：期刊论文
| 作者 | Lai, YM; Zhang, SJ; Zhang, LX; Xiao, JZ |
| 刊名 | COLD REGIONS SCIENCE AND TECHNOLOGY
 |
| 出版日期 | 2004-08-01 |
| 卷号 | 39期号:1页码:67-79 |
| 关键词 | porous media embankment with south and north slopes adjusting temperature distribution permafrost table |
| ISSN号 | 0165-232X |
| DOI | 10.1016/j.coldregions.2004.04.003 |
| 通讯作者 | Lai, YM(ymlai@lzb.ac.cn) |
| 英文摘要 | In this paper, the finite-element formula of convective heat transfer in porous media is obtained by using the Galerkin's method according to the continuity, momentum and energy equations of fluid heat convection for solving the computational problem of temperature field on the ripped-rock revetment embankment in Qing-Tibetan railway. The temperature changes of the ripped-rock revetment and common ballast embankments with south and north slopes have been investigated in coming 24 years, respectively. The results indicate that the ripped-rock of 10 cm diameter is paved on the south and north side slopes of common embankment ballast with the corresponding thickness of 1.6 and 0.8 m, respectively, when the temperature difference of the south and north slopes is 1.8 degreesC, which is able to make the temperature field distribution symmetrical during summertime, permafrost table greatly raised above the native ground surface with frost-susceptible sub-clay (the active layer before embankment construction) completely frozen under embankment during the time, and eliminate the disasters of longitudinal cracks resulting from the uneven settlement of embankment. Thus, we strongly suggest that the ripped-rock revetment embankment be adopted as a kind of embankment structure of Qing-Tibetan railway with south and north slopes in permafrost regions in order to protect the railway as much as possible. (C) 2004 Elsevier B.V. All rights reserved. |
| 收录类别 | SCI |
| WOS关键词 | STAGNANT THERMAL-CONDUCTIVITY ; POROUS-MEDIA ; NATURAL-CONVECTION ; MASS-TRANSFER ; HEAT |
| 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:000222986200007 |
| 出版者 | ELSEVIER SCIENCE BV |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2555595 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Lai, YM |
| 作者单位 | Chinese Acad Sci, State Key Lab Frozen Soil Engn, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lai, YM,Zhang, SJ,Zhang, LX,et al. Adjusting temperature distribution under the south and north slopes of embankment in permafrost regions by the ripped-rock revetment[J]. COLD REGIONS SCIENCE AND TECHNOLOGY,2004,39(1):67-79. |
| APA | Lai, YM,Zhang, SJ,Zhang, LX,&Xiao, JZ.(2004).Adjusting temperature distribution under the south and north slopes of embankment in permafrost regions by the ripped-rock revetment.COLD REGIONS SCIENCE AND TECHNOLOGY,39(1),67-79. |
| MLA | Lai, YM,et al."Adjusting temperature distribution under the south and north slopes of embankment in permafrost regions by the ripped-rock revetment".COLD REGIONS SCIENCE AND TECHNOLOGY 39.1(2004):67-79. |
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来源：寒区旱区环境与工程研究所
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