多年冻土区埋地式输油管道地基热稳定性研究

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Abstract Research purposes: Under the effect of positive temperature oil．the oil pipeline in permafrost region produces the disturbance to the foundation in permafrost region，resuhing in a thawing cylinder．At same time，the thawing subsidence of frozen soil and thawing of the active layer affect the pipeline foundation，resulting in uneven subsidence of the pipeline foundation to impact the pipeline safety．The model for calculation of the thawing cylinder of buried oil pipeline was used to calculate the thickness of the thawing cylinder，and the method was offered to treat the foundation for the purpose of providing the basis for laying the buried oil pipeline in permafrost region

Research conclusions: From the systematic analysis and research on calculation of the size of the thawing cylinder of the buried oil pipeline in permafrost regions with the calculation model，it is concluded application of coarse—grain soil instead of the heating plate for buried oil pipeline in permafrost region can reduce thawing settlement and frost—-heaving of the oil pipeline foundation and guarantee the the stability of the pipeline foundation．

Key words： permafrost region oil pipeline thawing cylinder stability

Received: 22 June 2010

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	YANG Yong—peng
	SONG Xi

Cite this article:

YANG Yong—peng,SONG Xi. Research on Thermal Stability of Foundation of Buried Oil Pipeline in Permafrost Region[J]. 铁道工程学报, 2010, 27(11): 10-13.

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http://tdgcxb.crec.cn/EN/ OR http://tdgcxb.crec.cn/EN/Y2010/V27/I11/10

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