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| DOI | 10.1016/j.applthermaleng.2018.04.138 |
| Field experimental study on long-term cooling and deformation characteristics of crushed-rock revetment embankment at the Qinghai-Tibet Railway | |
| Luo J.; Niu F.; Liu M.; Lin Z.; Yin G. | |
| 发表日期 | 2018 |
| ISSN | 13594311 |
| 卷号 | 139 |
| 英文摘要 | Crushed-rock revetment embankments (CRRE) were the most commonly used structure in the construction of the Qinghai-Tibet Railway, and also is a main strengthening measure at the later period's maintenance. Numerical and short-time field monitoring results have confirmed the cooling effects of CRRE, but studies regarding the long-term embankment thermal regime and deformation are still required to fully evaluate their performance. This paper discusses the cooling effects and embankment settlement of a CRRE at the Qinghai-Tibet Railway by examining the ground temperatures and embankment deformation between the years of 2003 and 2014. The results indicate that the crushed-rock layer has lowered the permafrost temperatures beneath the embankment and promoted permafrost aggradation. The estimated annual heat budget of the permafrost beneath the embankment was negative during the studied time period, indicating the sustained cooling performance of the CRRE. Furthermore, although the embankment shoulders experienced settlement, this settlement was smaller than that of a traditional embankment with normal gravel soil fills. This study confirms the utility of the CRRE as an effective design and maintenance measure for roadbeds in warm permafrost regions. © 2018 Elsevier Ltd |
| 英文关键词 | Cooling performance; Crushed-rock embankment; Embankment deformation; Permafrost; Qinghai-Tibet Railway |
| URL | https://www2.scopus.com/inward/record.uri?eid=2-s2.0-85046645842&doi=10.1016%2fj.applthermaleng.2018.04.138&partnerID=40&md5=b3d569832c49b9bc369918e9071dcc1c |
| 语种 | 英语 |
| scopus关键词 | Cooling; Elastic deformation; Permafrost; Railroads; Revetments; Rocks; Cooling performance; Crushed rock embankment; Crushed rock revetment; Crushed-rock layers; Deformation Characteristics; Embankment settlement; Ground temperature; Traditional embankments; Embankments |
| 来源期刊 | Applied Thermal Engineering
 |
| 来源机构 | 中国科学院西北生态环境资源研究院 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/77254 |
| 推荐引用方式 GB/T 7714 | Luo J.； Niu F.； Liu M.； Lin Z.； Yin G.. Field experimental study on long-term cooling and deformation characteristics of crushed-rock revetment embankment at the Qinghai-Tibet Railway[J]. 中国科学院西北生态环境资源研究院,2018,139. |
| APA | Luo J.； Niu F.； Liu M.； Lin Z.； Yin G..(2018).Field experimental study on long-term cooling and deformation characteristics of crushed-rock revetment embankment at the Qinghai-Tibet Railway.Applied Thermal Engineering,139. |
| MLA | Luo J.； Niu F.； Liu M.； Lin Z.； Yin G.."Field experimental study on long-term cooling and deformation characteristics of crushed-rock revetment embankment at the Qinghai-Tibet Railway".Applied Thermal Engineering 139(2018). |
| 条目包含的文件 | 条目无相关文件。 | |||||
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