The cold accumulative effect of expressway embankment with a combined cooling measure in permafrost zones
文献类型：期刊论文
| 作者 | Yu, Qihao1; Mu, Yanhu1; Yuan, Chang2; Ma, Wei1; Pan, Xicai3,4 |
| 刊名 | COLD REGIONS SCIENCE AND TECHNOLOGY
 |
| 出版日期 | 2019-07-01 |
| 卷号 | 163页码:59-67 |
| 关键词 | Expressway embankment Hollow concrete bricks Ventilation ducts Embankment width Cold accumulative effect Permafrost zone |
| ISSN号 | 0165-232X |
| DOI | 10.1016/j.coldregions.2019.04.009 |
| 通讯作者 | Mu, Yanhu(muyanhu@lzb.ac.cn) |
| 英文摘要 | The thermal performance of an experimentally built expressway embankment with a combined cooling measure at Beiluhe Basin in the Qinghai-Tibet Plateau was investigated based on long-term field monitoring. Six-year records of soil temperatures showed that the embankment cooled by a measure combining hollow concrete bricks and ventilation ducts had a significant cooling effect on the subgrade soil. Over the investigated time period, the permafrost table beneath the embankment moved upward to the natural ground surface, and the subgrade soil layers down to a depth of -15 m underwent a considerable cooling. Then, the long-term thermal performance of this kind of cooled embankment with different surface widths (13 and 26 m) is comparatively studied using numerical simulations. The simulated results show that both embankments perform well in cooling the subgrade soil. However, the annual heat loss of the subgrade soil beneath the wider cooled embankment is greater than that of the narrow ones. Via the wider cooled embankment, more cold accumulates in the subgrade soil after the embankment's construction, which we term as the "cold accumulative" effect. This cold accumulative effect can ensure the underlying permafrost thermal stability better in the context of climate warming and strength the long-term embankment stability. |
| 收录类别 | SCI |
| WOS关键词 | QINGHAI-TIBET HIGHWAY ; CRUSHED ROCK ; RAILWAY ; HEAT ; DEGRADATION ; PLATEAU ; REGIONS |
| 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:000468873900007 |
| 出版者 | ELSEVIER SCIENCE BV |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2555458 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Mu, Yanhu |
| 作者单位 | 1.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Frozen Soil Engn, Lanzhou, Gansu, Peoples R China 2.East China Univ Technol, Dept Geotech & Underground Engn, Nanchang, Jiangxi, Peoples R China 3.Chinese Acad Sci, Inst Soil Sci, Nanjing, Jiangsu, Peoples R China 4.Univ Saskatchewan, Global Inst Water Secur, Saskatoon, SK, Canada |
| 推荐引用方式 GB/T 7714 | Yu, Qihao,Mu, Yanhu,Yuan, Chang,et al. The cold accumulative effect of expressway embankment with a combined cooling measure in permafrost zones[J]. COLD REGIONS SCIENCE AND TECHNOLOGY,2019,163:59-67. |
| APA | Yu, Qihao,Mu, Yanhu,Yuan, Chang,Ma, Wei,&Pan, Xicai.(2019).The cold accumulative effect of expressway embankment with a combined cooling measure in permafrost zones.COLD REGIONS SCIENCE AND TECHNOLOGY,163,59-67. |
| MLA | Yu, Qihao,et al."The cold accumulative effect of expressway embankment with a combined cooling measure in permafrost zones".COLD REGIONS SCIENCE AND TECHNOLOGY 163(2019):59-67. |
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来源：寒区旱区环境与工程研究所
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