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DOI	10.3724/SP.J.1226.2016.00461
	Calculation method for thickness of discontinuous boundary layer of engineering pavement
	Zhang, ZhongQiong; Wu, QingBai; Zhang, Peng; Gao, SiRu
发表日期	2016
ISSN	1674-3822
起始页码	461
结束页码	466
卷号	8 期号:6
英文摘要	The boundary layer is a buffer layer of water and heat exchange between the atmosphere and permafrost. Based on the atmospheric boundary layer and heat transfer theory, we established a method for determining the boundary layer thickness of engineering pavement (asphalt and sand pavement) in permafrost region. The boundary layer can be divided into the Boundary Layer Above Surface (BLAS) and the Boundary Layer Below Surface (BLBS). From in-situ monitoring data, the thickness of BLAS was determined through the laminar thickness, and the thickness of BLBS was determined through ground temperature, the heat conduction function, and the mean attenuation function (alpha). For asphalt pavement, the BLAS thickness varied between 2.90 and 4.31 mm and that of BLBS varied between 28.00 and 45.38 cm. For sand pavement, the BLAS thickness varied between 2.55 and 3.29 mm and that of BLBS varied between 15.00 and 46.44 cm. The thickness varied with freezing and thawing processes. The boundary layer calculation method described in this paper can provide a relatively stable boundary for temperature field analysis.
英文关键词	boundary layer; scope; average attenuation coefficient; pavement; permafrost
语种	英语
WOS研究方向	Physical Geography
WOS类目	Geography, Physical
WOS记录号	WOS:000391635200002
来源期刊	SCIENCES IN COLD AND ARID REGIONS
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/240188
作者单位	[Zhang, ZhongQiong; Wu, QingBai; Zhang, Peng; Gao, SiRu] Chinese Acad Sci, State Key Lab Frozen Soil Engn, Northwest Inst Ecoenvironm & Resources, Lanzhou 730000, Gansu, Peoples R China; [Zhang, ZhongQiong; Wu, QingBai] Chinese Acad Sci, Beiluhe Observat Stn Frozen Soil Environm & Engn, Northwest Inst Ecoenvironm & Resources, Lanzhou 730000, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Zhang, ZhongQiong,Wu, QingBai,Zhang, Peng,et al. Calculation method for thickness of discontinuous boundary layer of engineering pavement[J]. 中国科学院西北生态环境资源研究院,2016,8(6).
APA	Zhang, ZhongQiong,Wu, QingBai,Zhang, Peng,&Gao, SiRu.(2016).Calculation method for thickness of discontinuous boundary layer of engineering pavement.SCIENCES IN COLD AND ARID REGIONS,8(6).
MLA	Zhang, ZhongQiong,et al."Calculation method for thickness of discontinuous boundary layer of engineering pavement".SCIENCES IN COLD AND ARID REGIONS 8.6(2016).