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由于土壤的类型及地面的湿度、热力学条件不同,导致土壤的冻胀性差异很大。对于掩埋管线,管线上浮弯曲形变是众所周知的现象,这导致管线发生大幅度上弯位移,这是剖面上管线不平稳的运行引起纵向上压力差异引起的。本文讨论了冻胀现象与管线上浮弯曲之间恶性的相互作用,其结果会严重威胁北极管线的安全性。
Due to the type of soil and ground humidity, thermodynamic conditions are different, resulting in a large difference in soil frost heave. For buried pipelines, it is a well-known phenomenon that pipelines are bent upward, resulting in a substantial upward displacement of the pipelines, which is caused by the pressure difference in the longitudinal direction caused by uneven pipelines in the section. This article discusses the vicious interaction between the frost heave phenomenon and the upward bend of the pipeline, which can seriously threaten the safety of the Arctic pipeline.