Analysis of temperature controlled ventilated embankment
文献类型：期刊论文
| 作者 | Yu, QH; Shi, CH; Niu, FJ; He, NW; Roth, K |
| 刊名 | COLD REGIONS SCIENCE AND TECHNOLOGY
 |
| 出版日期 | 2005-06-01 |
| 卷号 | 42期号:1页码:17-24 |
| 关键词 | temperature controlled ventilated embankments road construction permafrost |
| ISSN号 | 0165-232X |
| DOI | 10.1016/j.coldregions.2004.11.004 |
| 通讯作者 | Yu, QH(yuqh@ns.lzb.ac.cn) |
| 英文摘要 | A temperature controlled ventilated embankment (TCVE) of roads or railroads is proposed as an attractive engineering approach in permafrost regions. Comparing the measuring results in ventilated embankment (VE) with same conditions, which nearby TCVE testing fields, we demonstrate that in two testing fields with 30-cm and 40-cm diameter controlled vent ducts, the permafrost table raised by 0.3 in and 0.7 in, respectively. The average temperatures at the bottom of vent ducts decreased by 1.11 ° C and 1.52 ° C, respectively. The corresponding decrease at the bottom of the embankment was 0.5 ° C and 0.7 ° C. Compared to VE, the thawing period was cut down nearly 20 days and the time, during which heat was lost by embankment, was prolonged by more than a month. The heat flux into the permafrost beneath the embankment was reduced by nearly 1/4 in the filed with the 30-cm ducts and by almost 1/2 in the 40-cm field. TCVE vent duct diameter has no more influence on cooling efficiency in testing region. © 2004 Elsevier B.V. All rights reserved. |
| 收录类别 | SCI |
| WOS关键词 | PERMAFROST REGIONS ; MODEL |
| 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:000229537500002 |
| 出版者 | ELSEVIER SCIENCE BV |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2555674 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Yu, QH |
| 作者单位 | 1.Chinese Acad Sci, COld & Aris Reg Environm & Engn Res Inst, State Key Lab Frozen Soil Engn, Lanzhou 730000, Peoples R China 2.Univ Heidelberg, Inst Environm Phys, Heidelberg, Germany |
| 推荐引用方式 GB/T 7714 | Yu, QH,Shi, CH,Niu, FJ,et al. Analysis of temperature controlled ventilated embankment[J]. COLD REGIONS SCIENCE AND TECHNOLOGY,2005,42(1):17-24. |
| APA | Yu, QH,Shi, CH,Niu, FJ,He, NW,&Roth, K.(2005).Analysis of temperature controlled ventilated embankment.COLD REGIONS SCIENCE AND TECHNOLOGY,42(1),17-24. |
| MLA | Yu, QH,et al."Analysis of temperature controlled ventilated embankment".COLD REGIONS SCIENCE AND TECHNOLOGY 42.1(2005):17-24. |
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来源：寒区旱区环境与工程研究所
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