Abstract：Research purposes: China -Russia oil pipeline crosses the permafrost region in Daxinganling of northeast China. The frost heaving and thawing settlement in permafrost region and active layerwould destroy the oil pipeline engineering, resulting in uneven deformation of the pipeline foundation and influencing the pipeline security. Thispaper analyzes and studies the engineering geologicalproblems in permafrostregion alongChina-Russia oilpipeline, and puts forward the prevention countermeasures forensuring the security and stability of the oil pipeline engineering.
Research conclusions:(1) Installation ofoverhead oilpipeline in permafrost region can extremely reduce the influence of unfavorable engineering geology on the security of the oilpipeline. (2) Themain reason for the pipelines' deformation damage and inducing disaster to the pipeline is the difference in freezing and thawing deformation in permafrost region.Therefore, reducing the absolute value of frostheave or thawing settlementdeformation to slow down the acute degree of the pipelines' differential deformation in the vertical direction is an effective way to overcome the deformation damage.(3) In the unfavorable geological areawith expansive sensitive soil and ice -rich frozen soi,l themeasures of insulating the pipeline, replacementof filling and thickening the pipewall can be taken foreliminating or reducing axially uneven deformation of the pipeline.
王剑亮，牛怀俊，杨永鹏，韩龙武. 中俄输油管道沿线多年冻土工程地质问题及防治对策[J]. 铁道工程学报, 2009, 26(11): 5-9.
WANG Jian-liang, NIU Huai-jun, YANG Yong-peng, HAN Long-wu. Study of the Engineering Geological Problems in Permafrost Region along China-RussiaO ilPipeline and Prevention Countermeasures. 铁道工程学报, 2009, 26(11): 5-9.
2009, Vol. 26 
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