Keyword: «planned elevation»

The main pipelines laid on the territory of Yakutia are subject to faster wear due to the influence of permafrost soils on their operational reliability. The article shows that long-term monitoring of the planned altitude position of the main gas pipeline has identified a section of the coastal slope on the Tabaginskaya bayou, in which intense deformations occur twice a year. A mechanism is proposed that leads to complex deformations of the underground pipeline during frost heaving at the moment of the beginning of freezing of the soil. The developed mathematical model confirms this mechanism in the first approximation.