Typical embankment settlement/heave patterns of the Qinghai-Tibet highway in permafrost regions: Formation and evolution
文献类型：期刊论文
| 作者 | Yu, Fan1; Qi, Jilin2; Lai, Yuanming1,3; Sivasithamparam, Nallathamby4; Yao, Xiaoliang1; Zhang, Mingyi1; Liu, Yongzhi1,5; Wu, Guilong1,5 |
| 刊名 | ENGINEERING GEOLOGY
 |
| 出版日期 | 2016-11-30 |
| 卷号 | 214页码:147-156 |
| 关键词 | Qinghai-Tibet Highway Permafrost Settlement Frost heave Typical pattern Formation and evolution |
| ISSN号 | 0013-7952 |
| DOI | 10.1016/j.enggeo.2016.10.013 |
| 通讯作者 | Qi, Jilin(jilinqi@bucea.edu.cn) |
| 英文摘要 | The Qinghai-Tibet Highway (QTH) in China has been experiencing a serious embankment settlement/heave for more than half a century. The settlement/heave is resulted from several mechanical processes taking place in different soil layers. In this paper, four typical settlement/heave patterns of road embankments in permafrost regions, namely "steady-low rate", "fluctuate", "down step" and "steady-high rate" are proposed based on 3-year monitored data of embankment settlement/heave and ground temperature at four road sections as well as previous published data of the QTH. Their formation mechanisms and evolution trend in the process of permafrost degradation are discussed from the viewpoints of engineering geology and mechanical process, based on the clarification of the deformation characteristics of different soil layers of a typical road embankment The results show that the four patterns are caused by the negligible settlement/heave, freeze-thaw cycling in an open condition, consolidation of the thawed permafrost layers, and creep of warm permafrost layers respectively. The pattern will change from one to another during the process of permafrost degradation, which will become very' complex with the occurrence of frost heave. The results can help revealing the deformation mechanism of road embankments in permafrost regions, and can benefit road construction and maintenance in the future. (C) 2016 Elsevier B.V. All rights reserved. |
| 收录类别 | SCI |
| WOS关键词 | ROAD EMBANKMENT ; FREEZE-THAW ; FROST HEAVE ; DEGRADATION ; PLATEAU ; CHINA ; SOILS ; BENEATH ; CANADA |
| WOS研究方向 | Engineering ; Geology |
| WOS类目 | Engineering, Geological ; Geosciences, Multidisciplinary |
| 语种 | 英语 |
| WOS记录号 | WOS:000389096000015 |
| 出版者 | ELSEVIER SCIENCE BV |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2557520 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Qi, Jilin |
| 作者单位 | 1.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Frozen Soil Engn, Lanzhou 730000, Peoples R China 2.Beijing Univ Civil Engn & Architecture, Beijing High Inst Res Ctr Engn Structures & New M, Beijing 100044, Peoples R China 3.Lanzhou Jiaotong univ, Sch Civil Engn, Lanzhou 730070, Peoples R China 4.Norwegian Geotech Inst, Computat Geomech Div, N-0806 Oslo, Norway 5.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Beiluhe Observat Stn Frozen Soil Environm & Engn, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yu, Fan,Qi, Jilin,Lai, Yuanming,et al. Typical embankment settlement/heave patterns of the Qinghai-Tibet highway in permafrost regions: Formation and evolution[J]. ENGINEERING GEOLOGY,2016,214:147-156. |
| APA | Yu, Fan.,Qi, Jilin.,Lai, Yuanming.,Sivasithamparam, Nallathamby.,Yao, Xiaoliang.,...&Wu, Guilong.(2016).Typical embankment settlement/heave patterns of the Qinghai-Tibet highway in permafrost regions: Formation and evolution.ENGINEERING GEOLOGY,214,147-156. |
| MLA | Yu, Fan,et al."Typical embankment settlement/heave patterns of the Qinghai-Tibet highway in permafrost regions: Formation and evolution".ENGINEERING GEOLOGY 214(2016):147-156. |
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来源：寒区旱区环境与工程研究所
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