The application of auto-temperature-controlled ventilation embankment in Qinghai-Tibet Railway
文献类型：期刊论文
| 作者 | Yu, QH; Cheng, GD; Niu, FJ |
| 刊名 | SCIENCE IN CHINA SERIES D-EARTH SCIENCES
 |
| 出版日期 | 2004-08-01 |
| 卷号 | 47页码:168-176 |
| 关键词 | auto-temperature-controlled embankment application research |
| ISSN号 | 1006-9313 |
| DOI | 10.1360/04zd0019 |
| 通讯作者 | Yu, QH(yuqh@ns.lzb.ac.cn) |
| 英文摘要 | Auto-temperature-controlled ventilation embankment is an effective engineering measure for "cooling roadbed". Practice proves that this new method can sufficiently make use of natural cold energy. It has the advantages of higher efficiency, better cooling effect and feasibility in engineering practice, and wider application in various environment, etc. And also, it is comparatively cheap in project cost. Through practice in the field for half a year, the testing results show that, with the application of auto-temperature-controlled system, the artificial permafrost table has been raised by 65 cm. The artificial permafrost table was basically at the embankment bottom, and the action of freeze-thaw circle on engineering stability was effectively avoided. In the month with highest ground temperature, in the scope with 1-4 m in depth, including the majority of the embankment and the upper part in the original seasonal layer, the ground temperature decreased by 0.7degreesC. Through thermal flux calculation in the original seasonal layer, in the month with the maximum thermal flux coming into permafrost, it is found that the thermal flux reduces nearly by half. Coming into the cooling period for nearly a month, the ground temperature in entire auto-temperature-controlled embankment is close to zero, and the foundation is at negative temperature. But in a large region in the embankment and foundation the ground temperature was over 0degreesC and varied from 0degreesC to 0.39degreesC in ordinary ventilation embankment. |
| 收录类别 | SCI |
| WOS关键词 | PERMAFROST ; MODEL |
| WOS研究方向 | Geology |
| WOS类目 | Geosciences, Multidisciplinary |
| 语种 | 英语 |
| WOS记录号 | WOS:000224381400019 |
| 出版者 | SCIENCE CHINA PRESS |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2556947 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Yu, QH |
| 作者单位 | Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, State Key Lab Frozen Soil Engn, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yu, QH,Cheng, GD,Niu, FJ. The application of auto-temperature-controlled ventilation embankment in Qinghai-Tibet Railway[J]. SCIENCE IN CHINA SERIES D-EARTH SCIENCES,2004,47:168-176. |
| APA | Yu, QH,Cheng, GD,&Niu, FJ.(2004).The application of auto-temperature-controlled ventilation embankment in Qinghai-Tibet Railway.SCIENCE IN CHINA SERIES D-EARTH SCIENCES,47,168-176. |
| MLA | Yu, QH,et al."The application of auto-temperature-controlled ventilation embankment in Qinghai-Tibet Railway".SCIENCE IN CHINA SERIES D-EARTH SCIENCES 47(2004):168-176. |
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来源：寒区旱区环境与工程研究所
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