globalchange  > 气候减缓与适应
DOI: 10.1016/j.coldregions.2018.11.013
WOS记录号: WOS:000458502600011
论文题名:
Thermal modeling of heat balance through embankments in permafrost regions
作者: Kong, Xiangbing1; Dore, Guy1; Calmels, Fabrice2
通讯作者: Kong, Xiangbing
刊名: COLD REGIONS SCIENCE AND TECHNOLOGY
ISSN: 0165-232X
EISSN: 1872-7441
出版年: 2019
卷: 158, 页码:117-127
语种: 英语
英文关键词: Permafrost degradation ; Transportation infrastructure ; Alaska highway ; Thermal modeling ; Heat balance
WOS关键词: CLIMATE-CHANGE ; DEGRADATION ; BENEATH
WOS学科分类: Engineering, Environmental ; Engineering, Civil ; Geosciences, Multidisciplinary
WOS研究方向: Engineering ; Geology
英文摘要:

Permafrost is widely distributed in the northern hemisphere and permafrost degradation underneath transportation infrastructure is on-going due to many factors, such as climate change. The test site, constructed in 2008 along Alaska Highway at Beaver Creek, Yukon, Canada, provides valuable information on the long-term thermal response of permafrost underneath transportation infrastructure, to disturbances induced by constructions and climate change. The temperature data collected can also be used to calibrate thermal models to gain insight into relative effects of different factors on the sensitivity of the ground thermal regime underneath transportation infrastructure to on-going climate change. A finite-element, 2D heat conduction model, taking ice-water phase change into account, was developed based on the Beaver Creek experimental site characteristics and conditions. To increase the accuracy of the model, site-specific parameters, such as soil properties, near surface air temperature, and embankment dimension, were measured and used as input parameters. After calibration of the model, sensitivity analysis of certain input parameters, such as air temperature, embankment thickness and ground temperature, was conducted for different site conditions. The model was used to develop an engineering design chart allowing assessing the heat balance at the interface between embankment and natural ground. The heat balance analysis and the design chart are based on the results of sensitivity analysis and validated using the data from the Tasiujaq airstrip in Northern Quebec, Canada.


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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/129105
Appears in Collections:气候减缓与适应

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作者单位: 1.Laval Univ, Dept Civil & Water Engn, Quebec City, PQ, Canada
2.Yukon Coll, Yukon Res Ctr, Northern Climate ExChange, Whitehorse, YT, Canada

Recommended Citation:
Kong, Xiangbing,Dore, Guy,Calmels, Fabrice. Thermal modeling of heat balance through embankments in permafrost regions[J]. COLD REGIONS SCIENCE AND TECHNOLOGY,2019-01-01,158:117-127
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