Keyword: «soil reaction»

Trunk pipelines laid on the territory of Yakutia are operated in the area of permafrost. A particular hazard in the floodplain area for underground pipelines is moisture migration during freezing and thawing of frozen soils, from which the pipeline changes position twice a year. The article provides an assessment of mechanical stresses from deformations created by frost beams. Mathematical description and selection of underground pipeline model, as well as determination of soil reaction are proposed, obtained position functions by point horizontal and vertical measurements and evaluation of stresses in underground pipeline are shown.