Study on the relationship between the shallow ground temperature of embankment and solar radiation in permafrost regions on Qinghai-Tibet Plateau

doi:10.1016/j.coldregions.2012.01.002

IR > 土木工程学院

	Study on the relationship between the shallow ground temperature of embankment and solar radiation in permafrost regions on Qinghai-Tibet Plateau
	Chou, Yaling1 ; Sheng, Yu 2; Zhu, Yanpeng1
	2012-07
发表期刊	COLD REGIONS SCIENCE AND TECHNOLOGY
ISSN	0165-232X
卷号	78 页码:122-130
摘要	The temperature field of permafrost embankments is a key factor to determine the embankment stability. On the basis of observed climate data and field-temperature values in Beiluhe on the Qinghai-Tibet Plateau, this paper uses statistics methods to set up a regression equation between the temperature at shallow ground depth (0.5 m) and the net radiation on embankment horizontal surface. There is a good linear relation between the temperature and the net radiation after the phase difference is removed. Moreover, an empirical formula consisting of the shallow-ground temperature of (0.5 m) and the direct solar radiation is proposed. It is also suitable for the area having high elevation at the Beiluhe site. These formulas combining with the law of documents and materials suggest that there exists an obvious linear relation between the temperature on horizontal surface and the direct solar radiation. However, there is hardly linear relation between the temperature and the direct solar radiation on embankment slopes. The key factor is that the railway embankment slope has a relatively heavier gradient. The slopes with heavier gradient have different heat transfer characteristic during a specific year. In summer, the sun is shining straight on the ground, which results in a relatively lower direct solar radiation on slopes; however, because of diffuse radiation and higher temperatures of the horizontal surface, temperatures on slopes are relatively higher. In winter, the direct solar radiation on shady slopes is even zero, meaning that there is almost no direct solar radiation. Thus, the relations between the temperature and the direct solar radiation on slopes are more complicated. (C) 2012 Elsevier B.V. All rights reserved.
关键词	Permafrost regions Solar radiation Empirical formula Shallow ground temperature of embankment
DOI	10.1016/j.coldregions.2012.01.002
收录类别	SCI
语种	英语
资助项目	State Key Laboratory of Permafrost Engineering[SKLFSE201003]
WOS研究方向	Engineering ; Geology
WOS类目	Engineering, Environmental ; Engineering, Civil ; Geosciences, Multidisciplinary
WOS记录号	WOS:000304291000013
出版者	ELSEVIER SCIENCE BV
引用统计	被引频次：23[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/34892
专题	土木工程学院
通讯作者	Chou, Yaling
作者单位	1.Lanzhou Univ Technol, Sch Civil Engn, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, State Key Lab Frozen Soil Engn, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China
第一作者单位	兰州理工大学
通讯作者单位	兰州理工大学
第一作者的第一单位	兰州理工大学
推荐引用方式 GB/T 7714	Chou, Yaling,Sheng, Yu,Zhu, Yanpeng. Study on the relationship between the shallow ground temperature of embankment and solar radiation in permafrost regions on Qinghai-Tibet Plateau[J]. COLD REGIONS SCIENCE AND TECHNOLOGY,2012,78:122-130.
APA	Chou, Yaling,Sheng, Yu,&Zhu, Yanpeng.(2012).Study on the relationship between the shallow ground temperature of embankment and solar radiation in permafrost regions on Qinghai-Tibet Plateau.COLD REGIONS SCIENCE AND TECHNOLOGY,78,122-130.
MLA	Chou, Yaling,et al."Study on the relationship between the shallow ground temperature of embankment and solar radiation in permafrost regions on Qinghai-Tibet Plateau".COLD REGIONS SCIENCE AND TECHNOLOGY 78(2012):122-130.

条目包含的文件		下载所有文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
Chou-2012-Study on t（1570KB）	期刊论文	出版稿	开放获取	CC BY-NC-SA	浏览下载