Thermal Interaction between Permafrost and the Qinghai-Tibet Railway
文献类型：期刊论文
| 作者 | Wu, Qingbai; Li, Mingyong; Liu, Yongzhi |
| 刊名 | JOURNAL OF COLD REGIONS ENGINEERING
 |
| 出版日期 | 2010-12-01 |
| 卷号 | 24期号:4页码:112-125 |
| 关键词 | Qinghai-Xizang Railway General embankment Variation of permafrost Thermal interaction |
| ISSN号 | 0887-381X |
| DOI | 10.1061/(ASCE)CR.1943-5495.0000016 |
| 通讯作者 | Wu, Qingbai(qbwu@lzb.ac.cn) |
| 英文摘要 | Measures were taken to protect the thermal regime of the roadbed embankment after construction and to lower permafrost temperatures in the rich-ice and warm permafrost regions along the Qinghai-Xizang Railway. However, these measures were taken only for some sections of the railway, leaving many sections unprotected. This article addresses those areas where no measures were taken and presents analysis of the variation of soil temperatures under the embankment in seasonal frozen soil areas, degrading permafrost areas, and warm and cold permafrost areas. The results show that soil temperatures, maximum seasonal freezing depth, and the permafrost table under the embankment differ according to the different frozen soil areas after embankment construction. In seasonal frozen soil areas and degraded permafrost areas, the seasonal frost layer remained frozen the next year under the shaded shoulder of the embankment. In degrading permafrost areas, a thaw layer between the permafrost table and the bottom of the seasonal frost formed under the embankment. In warm permafrost areas, the permafrost table under the embankment was unstable and soil temperatures near the permafrost table showed an obvious increasing trend. In cold permafrost areas, the permafrost table under the embankment was clearly raised and temperature lowered in the soil near the permafrost table, which is advantageous to permafrost thermal stability under the embankment. In particular, the difference in solar radiation from the slope exposed to the sun to the shady slope of the embankment is responsible for the difference in the soil thermal regime and the permafrost table, which potentially can affect roadbed stability. |
| 收录类别 | SCI |
| WOS关键词 | CONSTRUCTION ; EMBANKMENT ; HIGHWAY ; PLATEAU ; CHINA |
| 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:000284273900002 |
| 出版者 | ASCE-AMER SOC CIVIL ENGINEERS |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2556313 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Wu, Qingbai |
| 作者单位 | Chinese Acad Sci, State Key Lab Frozen Soil Engn Cold & Arid Reg, Environm & Engn Res Inst, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wu, Qingbai,Li, Mingyong,Liu, Yongzhi. Thermal Interaction between Permafrost and the Qinghai-Tibet Railway[J]. JOURNAL OF COLD REGIONS ENGINEERING,2010,24(4):112-125. |
| APA | Wu, Qingbai,Li, Mingyong,&Liu, Yongzhi.(2010).Thermal Interaction between Permafrost and the Qinghai-Tibet Railway.JOURNAL OF COLD REGIONS ENGINEERING,24(4),112-125. |
| MLA | Wu, Qingbai,et al."Thermal Interaction between Permafrost and the Qinghai-Tibet Railway".JOURNAL OF COLD REGIONS ENGINEERING 24.4(2010):112-125. |
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来源：寒区旱区环境与工程研究所
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