冻土区管土相互作用研究综述

管道是长距离输送天然气或石油的最经济有效的工具之一,当管道穿越冻土区时,将面临土体冻胀融沉作用引起的管道弯曲变形和破坏,管土之间的相互作用为冻土区管道设计和运营的重要考虑因素。简述目前世界上主要的穿越冻土区管道工程(罗曼井管道、俄罗斯远东地区管道、美国阿拉斯加管道及中国寒区管道网)的设计理论发展,归纳总结了管土相互作用室内外相关试验、数值模拟分析理论和方法等方面的研究成果和发展现状,并针对冻土区管土相互作用的研究提出进一步的研究展望。

Interactions between the pipeline and soils in permafrost regions: a review

Pipeline is one of the most economical and effective tool for long distance transportation of gas and oil.The pipeline may be subject to bending deformation and possible failures caused by the frost heaving and thawing through permafrost regions.Therefore,the interactions between pipe and soils have been one of the most important factors for pipe design and operation to consider in permafrost regions.In this paper,the development and progress in design theory of main pipeline projects in permafrost regions(e.g.,Norman Wells Pipeline,Far East Pipeline of Russian,Alyeska Pipeline,and Pipelines in China) are briefly reviewed,the latest achievements and progresses in indoor and outdoor experiments and analysis theory,together with the method of numerical simulations for studying the interaction between the pipeline and soil are summarized.In the end,further research and prospect on the pipe-soil interactions in permafrost regions are proposed.