Settlement characteristics of unprotected embankment along the Qinghai-Tibet Railway
文献类型：期刊论文
| 作者 | Qin, Yinghong; Zhang, Jianming; Li, Guoyu; Qu, Guangzhou |
| 刊名 | COLD REGIONS SCIENCE AND TECHNOLOGY
 |
| 出版日期 | 2010 |
| 卷号 | 60期号:1页码:84-91 |
| 关键词 | Roughness Slope orientation effect Differential settlement Warm and ice-rich permafrost (WIRP) |
| ISSN号 | 0165-232X |
| DOI | 10.1016/j.coldregions.2009.08.002 |
| 通讯作者 | Qin, Yinghong(yqin1@mtu.edu) |
| 英文摘要 | This study attempts to investigate the settlement characteristics of the unprotected embankment along the Qinghai-Tibet Railway. First, the investigation shows the observed data regarding the settlement of five adjacent unprotected embankment sections. Then, this data is estimated by using the fractal dimension to estimate the roughness of the embankment shoulder surface. Finally, a relationship between this roughness and the differential settlement between adjacent embankment sections is proposed. The result shows that currently the roughness along the north and south shoulder surfaces are 6.25e-8 and 8.92e-8, respectively. These values mean that the differential settlements between 20 m-distance sections along the north and south shoulder surfaces are 3 and 4.3 cm, respectively. Therefore, although the unprotected embankment has experienced significant settlement (maximum is 21 cm), the differential settlement between the 20 m-distance adjacent sections is still of lower magnitude. A prediction for the evolution of the differential settlement of the unprotected embankment shows that by 2020 the differential settlement along the north and south shoulder surfaces of the embankment may reach approximately 4.5 and 9.8 cm. The difference between these two values is 5.3 cm which would change the curvature of the tracks, and thus potentially risk the safety of the running trains. Published by Elsevier B.V. |
| 收录类别 | SCI |
| WOS关键词 | PERMAFROST PROTECTION ; SHADING BOARD ; VENTILATION ; INSULATION ; HIGHWAY ; PLATEAU ; REGIONS ; WARM |
| 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:000273119400010 |
| 出版者 | ELSEVIER SCIENCE BV |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2556443 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Qin, Yinghong |
| 作者单位 | 1.Chinese Acad Sci, State Key Lab Frozen Soils Engn, Lanzhou 730000, Gansu, Peoples R China 2.Chinese Acad Sci, Cold & Arid Environm & Engn Res Inst, Lanzhou 730000, Gansu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Qin, Yinghong,Zhang, Jianming,Li, Guoyu,et al. Settlement characteristics of unprotected embankment along the Qinghai-Tibet Railway[J]. COLD REGIONS SCIENCE AND TECHNOLOGY,2010,60(1):84-91. |
| APA | Qin, Yinghong,Zhang, Jianming,Li, Guoyu,&Qu, Guangzhou.(2010).Settlement characteristics of unprotected embankment along the Qinghai-Tibet Railway.COLD REGIONS SCIENCE AND TECHNOLOGY,60(1),84-91. |
| MLA | Qin, Yinghong,et al."Settlement characteristics of unprotected embankment along the Qinghai-Tibet Railway".COLD REGIONS SCIENCE AND TECHNOLOGY 60.1(2010):84-91. |
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来源：寒区旱区环境与工程研究所
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