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In-situ study on cooling characteristics of two-phase closed thermosyphon embankment of Qinghai-Tibet Highway in permafrost regions
Song, Y (Song, Yi)[ 1 ]; Jin, L (Jin, Long)[ 2 ]; Zhang, JZ (Zhang, Jinzhao)[ 2 ]
2013-09-15
发表期刊COLD REGIONS SCIENCE AND TECHNOLOGY
卷号93页码:12-19
文章类型期刊论文
摘要

The two-phase closed thermosyphon is an effective thermal semiconductor which can decrease the ground temperature of the underlying permafrost only in cold seasons, but does not transfer thermal energy in warm seasons. In this paper, based on the monitoring data of experimental embankment of the Qinghai-Tibet Highway from 2004 to 2011, the working state, temperature distributions and freeze-thaw process of embankment armed with two-phase closed thermosyphon were analyzed. It was found that thermosyphon embankment could play a rapid cooling effect after construction, which can weaken the sunny side-slope thermal effect and ensure the stability of embankment effectively. Compared with traditional embankment, the thermosyphon embankment offered a relatively long freezing period in a year for the underlying permafrost. For this reason, a relatively stable low-temperature zone around thermosyphon was formed. The monitoring data indicated that the artificial permafrost table beneath the thermosyphon embankment elevated to or maintained at the natural level. The thermosyphon can help to enhance the capability of defending against climate warming and further to increase the long-term stability of the embankment in permafrost regions.

关键词Thermosyphon Embankment Cooling Effect Monitoring Data Permafrost
DOI10.1016/j.coldregions.2013.05.002
收录类别SCI ; EI
语种英语
引用统计
被引频次:42[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ieecas.cn/handle/361006/9991
专题生态环境研究室
通讯作者Song, Y (Song, Yi)[ 1 ]
作者单位1.State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710075, China;
2.Key Laboratory of Highway Construction & Maintenance Technology in Permafrost Regions, Ministry of Transport, CCCC First Highway Consultants Co., LTD, Xi'an 710065, China
推荐引用方式
GB/T 7714
Song, Y ,Jin, L ,Zhang, JZ . In-situ study on cooling characteristics of two-phase closed thermosyphon embankment of Qinghai-Tibet Highway in permafrost regions[J]. COLD REGIONS SCIENCE AND TECHNOLOGY,2013,93:12-19.
APA Song, Y ,Jin, L ,&Zhang, JZ .(2013).In-situ study on cooling characteristics of two-phase closed thermosyphon embankment of Qinghai-Tibet Highway in permafrost regions.COLD REGIONS SCIENCE AND TECHNOLOGY,93,12-19.
MLA Song, Y ,et al."In-situ study on cooling characteristics of two-phase closed thermosyphon embankment of Qinghai-Tibet Highway in permafrost regions".COLD REGIONS SCIENCE AND TECHNOLOGY 93(2013):12-19.
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