Investigation for the deformation of embankment underlain by warm and ice-rich permafrost
文献类型：期刊论文
| 作者 | Zheng, Bo1,2,3; Zhang, Jianming2; Qin, Yinghong2 |
| 刊名 | COLD REGIONS SCIENCE AND TECHNOLOGY
 |
| 出版日期 | 2010-02-01 |
| 卷号 | 60期号:2页码:161-168 |
| 关键词 | Qinghai-Tibetan Railway (QTR) Warm and ice-rich permafrost (WIRP) Embankment settlement Creep model Numerical analysis |
| ISSN号 | 0165-232X |
| DOI | 10.1016/j.coldregions.2009.08.012 |
| 通讯作者 | Zheng, Bo() |
| 英文摘要 | The purpose of this study is to investigate the settlement of the embankment constructed in warm and ice-rich permafrost (WIRP) region along the Qinghai-Tibetan Railway (QTR). In this investigation. an in-situ experiment for the thermal regime under this embankment and for the settlement of the embankment is proposed. The data illustrate that the thicker the embankment fill, the thicker the WIRP layer under the embankment, and the greater the rise of the permafrost temperature, the larger the settlement of the embankment experiences. The observed data also show that the total settlement comes mainly from the creep deformation of the WIRP layer underneath the original permafrost table. To better understand this deformation, we construct a numerical model which considers the creep behavior of the WIRP layer to predict the settlement of this embankment. The numerical results show that 1) under the same mean annual ground temperatures (MAGT), the embankment settlement increases linearly with the thickness of the embankment. and 2) when the MAGT is at -0.5 degrees C, the total settlement of the embankment with 6 m thickness would be up to 18.1 cm in the 30th service years of the embankment. (C) 2009 Elsevier B.V. All rights reserved. |
| 收录类别 | SCI |
| WOS关键词 | QINGHAI-TIBET RAILWAY ; ROADBED COOLING APPROACH |
| 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:000274036600007 |
| 出版者 | ELSEVIER SCIENCE BV |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2556423 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Zheng, Bo |
| 作者单位 | 1.China Acad Railway Sci, Beijing 100081, Peoples R China 2.Chinese Acad Sci, State Key Lab Frozen Soil Engn, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Gansu, Peoples R China 3.CREC, SW Res Inst Co Ltd, Chengdu 610031, Sichuan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zheng, Bo,Zhang, Jianming,Qin, Yinghong. Investigation for the deformation of embankment underlain by warm and ice-rich permafrost[J]. COLD REGIONS SCIENCE AND TECHNOLOGY,2010,60(2):161-168. |
| APA | Zheng, Bo,Zhang, Jianming,&Qin, Yinghong.(2010).Investigation for the deformation of embankment underlain by warm and ice-rich permafrost.COLD REGIONS SCIENCE AND TECHNOLOGY,60(2),161-168. |
| MLA | Zheng, Bo,et al."Investigation for the deformation of embankment underlain by warm and ice-rich permafrost".COLD REGIONS SCIENCE AND TECHNOLOGY 60.2(2010):161-168. |
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来源：寒区旱区环境与工程研究所
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