气候变化领域集成服务门户(CCPortal): Impact of hydro-thermal behaviour around a buried pipeline in cold regions

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DOI	10.1016/j.coldregions.2019.102961
	Impact of hydro-thermal behaviour around a buried pipeline in cold regions
	Li, Hongwei; Lai, Yuanming; Li, Liang
发表日期	2020
ISSN	0165-232X
EISSN	1872-7441
卷号	171
英文摘要	The lifecycle service performance of infrastructure such as buried pipelines, pavement structures, and building foundations can be adversely affected by the process of freezing and thawing action in cold regions. The complicated and dynamic interactions of the temperature distribution and moisture migration around a buried pipeline, which have a significant influence on the stability mechanism of a cold-region pipeline, play a critical role in crude oil/gas pipeline design in cold regions. In this study, a hydro-thermal coupled mathematical model based on energy and mass equilibrium conservation principles is established for estimating the distribution characters of thermal field and water field around a buried pipeline, and several calculation conditions should be computed to explore the heat-moisture states in the surrounding soils under unfavourable conditions. Subsequently, the optimal methods based on thermal conductivity and thermal insulation thickness are developed, and the relationship among the thermal insulation effect, thermal parameters and thickness can be obtained to evaluate the impact of hydro-thermal behaviour in the surrounding soils in cold regions. Furthermore, this method has potential applications in pipeline behaviour analyses and further investigations in cold regions.
英文关键词	Hydro-thermal model; Cold region; Thermal insulation layer; Buried pipeline; Temperature effects; Optimal method
语种	英语
WOS研究方向	Engineering ; Geology
WOS类目	Engineering, Environmental ; Engineering, Civil ; Geosciences, Multidisciplinary
WOS关键词	CRUDE-OIL PIPELINE ; FROST HEAVE ; NONLINEAR-ANALYSIS ; PERMAFROST ; SEEPAGE ; MODEL ; TEMPERATURE ; SOILS ; STATE
WOS记录号	WOS:000512978000004
来源期刊	COLD REGIONS SCIENCE AND TECHNOLOGY
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/239581
作者单位	[Li, Hongwei; Li, Liang] Tarim Univ, Coll Water Resources & Architecture Engn, Aral 843300, Peoples R China; [Li, Hongwei; Lai, Yuanming] Chinese Acad Sci, Cold & Arid Reg Environm & Engn Inst, State Key Lab Frozen Soil Engn, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Li, Hongwei,Lai, Yuanming,Li, Liang. Impact of hydro-thermal behaviour around a buried pipeline in cold regions[J]. 中国科学院西北生态环境资源研究院,2020,171.
APA	Li, Hongwei,Lai, Yuanming,&Li, Liang.(2020).Impact of hydro-thermal behaviour around a buried pipeline in cold regions.COLD REGIONS SCIENCE AND TECHNOLOGY,171.
MLA	Li, Hongwei,et al."Impact of hydro-thermal behaviour around a buried pipeline in cold regions".COLD REGIONS SCIENCE AND TECHNOLOGY 171(2020).