Thermal stabilization of duct-ventilated railway embankments in permafrost regions using ripped-rock revetment
文献类型：期刊论文
| 作者 | Hou Yandong1,3; Wu Qingbai1,2; Niu Fujun1,2; Liu Yongzhi1,2 |
| 刊名 | COLD REGIONS SCIENCE AND TECHNOLOGY
 |
| 出版日期 | 2015-12-01 |
| 卷号 | 120页码:145-152 |
| 关键词 | Qinghai-Xizang Railway Duct-ventilated embankment Ripped-rock revetment Artificial permafrost table Cooling effects |
| ISSN号 | 0165-232X |
| DOI | 10.1016/j.coldregions.2015.10.002 |
| 通讯作者 | Wu Qingbai(qbwu@lzb.ac.cn) |
| 英文摘要 | Duct-ventilated railway embankment (DVE) is relatively effective at preserving underlying permafrost under the current climatic conditions. To increase its capacity to adapt to climate warming, a ripped-rock revetment was added to the DVE. To evaluate the effectiveness in cooling of different embankment treatments, long-term insitu soil temperature data were collected from eight experimental embankment sections along the Qinghai-Xizang Railway in the Beiluhe region between 2002 and 2012. Analysis of these soil temperatures shows that the addition of the ripped-rock revetment is effective in improving the cooling capacity of the DVE, enhancing the thermal stability of both the embankment body and the underlying permafrost. Soil temperature in the overall embankment decreases about 0.5-1.0 degrees C, the temperature of the underlying permafrost decrease, the artificial permafrost table is further raised, and average range for cooling effect gets further enlarged under the joint effect of ventilated ducts and ripped-rock revetment. What is more, this cooling effect of embankments with low-positioned ducts is greater than that with high-positioned ducts. Besides, cooling effect is greater for ducts with a diameter of 30 cm coupled with ripped-rock revetment than that of 40 cm. Another positive outcome of this reinforcement is the greater restriction in the temperature difference between the sunny and shady embankment shoulders, especially for the embankments with low-positioned ducts or with a diameter of 30 cm. Therefore, implementation of ripped-rock revetment is recommended for duct-ventilated embankments, particularly for embankments where high-positioned ducts are present. (C) 2015 Elsevier B.V. All rights reserved. |
| 收录类别 | SCI |
| WOS关键词 | QINGHAI-TIBET RAILWAY ; TEMPERATURE-CONTROLLED VENTILATION |
| 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:000365055400015 |
| 出版者 | ELSEVIER SCIENCE BV |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2557179 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Wu Qingbai |
| 作者单位 | 1.Chinese Acad Sci, State Key Lab Frozen Soil Engn, Cold & Arid Environm & Engn Res Inst, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Cold & Arid Environm & Engn Res Inst, Beiluhe Observat Stn Frozen Soil Environm & Engn, Lanzhou 730000, Peoples R China 3.Univ Chinese Acad Sci, Sch Resources & Environm, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hou Yandong,Wu Qingbai,Niu Fujun,et al. Thermal stabilization of duct-ventilated railway embankments in permafrost regions using ripped-rock revetment[J]. COLD REGIONS SCIENCE AND TECHNOLOGY,2015,120:145-152. |
| APA | Hou Yandong,Wu Qingbai,Niu Fujun,&Liu Yongzhi.(2015).Thermal stabilization of duct-ventilated railway embankments in permafrost regions using ripped-rock revetment.COLD REGIONS SCIENCE AND TECHNOLOGY,120,145-152. |
| MLA | Hou Yandong,et al."Thermal stabilization of duct-ventilated railway embankments in permafrost regions using ripped-rock revetment".COLD REGIONS SCIENCE AND TECHNOLOGY 120(2015):145-152. |
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来源：寒区旱区环境与工程研究所
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