Sunny-shady slope effect on the thermal and deformation stability of the highway embankment in warm permafrost regions
文献类型：期刊论文
| 作者 | Chou, Yaling1; Sheng, Yu2; Li, Yuwen3; Wei, Zhenming4; Zhu, Yanpeng1; Li, Jinping5 |
| 刊名 | COLD REGIONS SCIENCE AND TECHNOLOGY
 |
| 出版日期 | 2010-08-01 |
| 卷号 | 63期号:1-2页码:78-86 |
| 关键词 | Warm permafrost Permafrost embankment Soil mechanics Temperature field Sunny-shady slope Asymmetry Solar radiation |
| ISSN号 | 0165-232X |
| DOI | 10.1016/j.coldregions.2010.05.001 |
| 通讯作者 | Chou, Yaling(chouyaling@lzb.ac.cn) |
| 英文摘要 | The aim of this study was to investigate how the sunny-shady slope impacts on the thermal and deformation stability of the highway embankment in warm permafrost region. The investigation was done by analyzing both the observational geo-temperature and deformation data of the embankment in the experimental section K369+100 along the National Highway 214 on Qinghai-Tibet Plateau. Also, the fundamental cause of the embankment transverse asymmetrical thermal regime and asymmetrical deformation was discussed. The observation data indicates (1) for embankment in warm permafrost regions, the deformation stability is highly correlated with the thermal stability, and the embankment transverse deformation is mainly controlled by the ground temperature and its change; (2) the absorbed solar radiation difference between sunny and shady slopes results in the embankment's transverse thermal difference, which leads to asymmetrical deformation; and (3) the time of the highest settlement deformation does not coincide with that of the maximum thaw depth, which means that the development of the embankment deformation lags behind the development of embankment temperature. For the embankment with differential deformation in transverse section, the times of the highest settlement deformation on two sides of embankment are different. This difference lies in that the time of the highest settlement deformation on the sunny side is later than that on the shady side of the embankment. The differential deformation will be magnified over time, and finally the embankment stability is engulfed by the longitudinal cracks caused by asymmetric settlement of permafrost. (C) 2010 Elsevier B.V. All rights reserved. |
| 收录类别 | SCI |
| 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:000280023600009 |
| 出版者 | ELSEVIER SCIENCE BV |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2556310 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Chou, Yaling |
| 作者单位 | 1.Lanzhou Univ Technol, Sch Civil Engn, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, State Key Lab Frozen Soil Engn, Lanzhou 730000, Peoples R China 3.Zhejiang Univ Finance & Econ, Sch Business Adm, Hangzhou 310018, Zhejiang, Peoples R China 4.Gansu Nonferrous Met Geol Explorat Bur, Lanzhou 730000, Peoples R China 5.CCCC First Highway Consultants Co LTD, Xian 710068, Shaan Xi, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chou, Yaling,Sheng, Yu,Li, Yuwen,et al. Sunny-shady slope effect on the thermal and deformation stability of the highway embankment in warm permafrost regions[J]. COLD REGIONS SCIENCE AND TECHNOLOGY,2010,63(1-2):78-86. |
| APA | Chou, Yaling,Sheng, Yu,Li, Yuwen,Wei, Zhenming,Zhu, Yanpeng,&Li, Jinping.(2010).Sunny-shady slope effect on the thermal and deformation stability of the highway embankment in warm permafrost regions.COLD REGIONS SCIENCE AND TECHNOLOGY,63(1-2),78-86. |
| MLA | Chou, Yaling,et al."Sunny-shady slope effect on the thermal and deformation stability of the highway embankment in warm permafrost regions".COLD REGIONS SCIENCE AND TECHNOLOGY 63.1-2(2010):78-86. |
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来源：寒区旱区环境与工程研究所
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